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Anti-Vibration Mount Selection Guide: How to Specify the Right Isolator A surprising number of vibration complaints come not from missing mounts but from the wrong mounts — overloaded, underloaded, or stiff enough to land the machine on resonance. This anti-vibration mount selection guide is built to prevent exactly that. It is written for engineers and procurement managers who need a repeatable method for selecting vibration mounts that actually isolate, not just fill a bolt hole. After decades of supplying rubber components to industry, we have distilled the process into a sequence you can apply to almost any machine. Step 1: Define the Load and Its Distribution Selection starts with weight. You need the total weight of the equipment and, just as importantly, how it is distributed across the mounting points. A machine with a heavy motor at one end loads its mounts unevenly, and a uniform mount choice will compress unevenly — ruining isolation. Practical Method Find the total operating weight, including fluids and attached pipework where relevant. Determine the load at each mounting foot, accounting for the centre of gravity. Size each mount to its actual share of the load. This is the foundation of a correct load-rated vibration mount decision, and skipping it is the single most common error. Step 2: Identify the Operating Frequency The machine’s disturbing frequency comes from its running speed. Convert revolutions per minute to hertz by dividing by 60: 1,500 revolutions per minute ÷ 60 = 25 hertz You need this number because it sets how soft the mount must be. Lower running speeds demand softer mounts with greater deflection to isolate effectively. Step 3: Target the Right Natural Frequency and Deflection Effective machine vibration isolator selection keeps the system’s natural frequency well below the disturbing frequency — a ratio of about 3:1 or better. In practice, engineers use static deflection as the working proxy: more deflection means a lower natural frequency and better isolation. A Rough Field Guide For typical rotating machinery, aim for the mount to compress a meaningful, specified amount under load, according to the mount’s rated deflection. Never select a mount so stiff that it barely deflects — it will sit near resonance and amplify vibration. Never overload a mount past its rated capacity — excessive deflection causes early failure. Correct rubber mount sizing is fundamentally about hitting the right deflection at the actual load. Step 4: Choose the Load Rating With a Margin Each mount has a rated load range. Select a mount so the working load sits comfortably within that range — not at the extreme top and not far below the bottom. Operating near the top of the range risks overload and creep; operating far below it means too little deflection and poor isolation. A mount loaded to roughly the middle of its rated range usually performs best. Step 5: Match the Environment The vibration mount specification must account for what the mount lives in. This drives compound choice: Oil or fuel exposure → Nitrile rubber Outdoor, ozone and weathering → Neoprene or Ethylene Propylene Diene Monomer rubber High temperature → Heat-resistant compounds General indoor use → Natural rubber for best damping An ideal mount in the wrong compound degrades quickly, so treat material as part of the specification, not an afterthought. You can review compound and configuration options for anti-vibration mounts. Step 6: Select the Mount Type and Orientation Different geometries suit different duties: Anti-vibration pads for light to medium machines and simple installations. Cylindrical or bobbin mounts for general bolt-down machine mounting. Conical or bush mounts where loads are directional. Spring or spring-rubber mounts for heavy, low-frequency equipment needing large deflection. Also consider whether the mount sees mainly compression, shear, or a combination, and orient it accordingly — rubber behaves differently in each mode. Step 7: Consider Durometer (Hardness) Hardness fine-tunes stiffness. Softer rubber, with a lower Shore A hardness, gives more deflection and better isolation but carries less load. Harder rubber carries more load but isolates less. Within a chosen mount, durometer is the lever you use to balance load capacity against isolation. This is the finishing touch in selecting vibration mounts. A Worked Example Consider a 400 kilogram compressor on four feet, running at 1,200 revolutions per minute, or 20 hertz, in a clean indoor plant. Each foot carries roughly 100 kilograms, adjusting for the centre of gravity if needed. You would choose a mount rated comfortably around 100 kilograms per mounting point, in natural rubber for good damping, with a durometer that delivers enough deflection to put the natural frequency near 6–7 hertz — approximately a 3:1 ratio below 20 hertz. That combination isolates well while staying clear of resonance. Change the environment to an oily workshop and the only change is the compound: nitrile rubber instead of natural rubber. Quick Selection Checklist To turn this anti-vibration mount selection guide into a desk-side process: Total weight and per-point load distribution. Operating frequency: revolutions per minute ÷ 60 = hertz. Target natural frequency at approximately a 3:1 ratio through appropriate deflection. Load rating with the working load near the middle of the rated range. Compound matched to the environment. Mount type and orientation for the load direction. Durometer to balance load against isolation. Frequently Asked Questions 1. What is the first step in an anti-vibration mount selection guide? Defining the total weight and how it is distributed across mounting points. Sizing each mount to its actual share of the load is the foundation of correct selection. 2. How do I calculate the operating frequency for selecting vibration mounts? Divide the machine’s running speed in revolutions per minute by 60 to get the disturbing frequency in hertz. For example, a 1,500 revolutions per minute machine has a 25 hertz fundamental frequency, which helps determine how soft the mount must be. 3. What load rating should a vibration mount have? Choose a load-rated vibration mount so the working load sits near the middle of its rated range — not at the top, which

What Are Anti-Vibration Mounts? Definition, Types and How They Protect Equipment If you have ever wondered what anti-vibration mounts are and why they appear in everything from rooftop heating, ventilation and air-conditioning units to factory presses, the simplest answer is this: they are engineered components that sit between a machine and its support to stop vibration and shock from spreading into the surrounding structure. They are deliberately unglamorous parts, yet they protect equipment, extend service life, reduce noise and keep precision processes accurate. Drawing on decades of manufacturing rubber components for industrial use, this guide explains the definition, the key types, the materials, and how to recognise the right one for a given job. Anti-Vibration Mount Definition The clearest anti-vibration mount definition is: a resilient mounting element — usually combining rubber with metal fixings — installed between a vibrating machine and its base to isolate vibration, absorb shock and reduce transmitted noise. The terms “vibration mount,” “vibration isolator” and “anti-vibration mount” are largely interchangeable in industry. The reason they work is that the resilient element flexes, decoupling the machine so that only a fraction of its vibration energy reaches the structure. Done correctly, machine mounting on these isolators turns a noisy, structure-shaking installation into a stable one. Why Equipment Needs Them Unmanaged vibration causes a predictable list of problems: loosened fasteners, fatigue cracks, premature bearing wear, noise complaints, and inaccuracy in measuring or machining equipment. Anti-vibration mounts address all of these at once by tackling the root cause — the transmission path. That is why they are standard on pumps, compressors, generators, motors, heating, ventilation and air-conditioning equipment, machine tools and laboratory equipment. Key Components of a Mount Most mounts share a simple anatomy: A resilient element — typically rubber — that provides flexibility and damping. Metal fixings or inserts — such as studs, plates or threaded bushes — for secure attachment. A defined geometry that sets the stiffness and therefore the isolation characteristics. Rubber anti-vibration mounts are the most common because rubber naturally combines elasticity for isolation with internal damping for energy dissipation, and it is economical and durable. Vibration Isolator Types Understanding vibration isolator types helps match a mount to an application. The main families include: Anti-Vibration Pads An anti-vibration pad is the simplest form — a flat sheet or pad of rubber, often ribbed, waffled or cork-rubber, placed under machine feet. No bolting is needed in many cases; the machine’s weight holds it in place. These pads are ideal for light to medium equipment and quick installations. Cylindrical / Bobbin Mounts These have rubber bonded between two metal end fittings with threaded studs or holes. They handle compression, shear and sometimes tension, making them versatile for general machine mounting. Conical and Bush Mounts These are shaped to give different stiffness in different directions, making them useful where vibration is directional or where space is constrained. Spring and Spring-Rubber Mounts For very low-frequency isolation — such as large heating, ventilation and air-conditioning equipment and heavy rotating equipment — steel springs, often combined with rubber, provide the large deflection needed. These handle vibration that rubber alone cannot isolate effectively. Materials: Why Rubber Dominates The resilient element is usually a rubber compound chosen for the environment: Natural rubber for excellent damping and general use. Neoprene for oil, weather and ozone resistance. Nitrile rubber where oil contact is significant. Ethylene propylene diene monomer rubber for outdoor and high-temperature exposure. Selecting the compound is as important as selecting the shape — an oil-soaked natural rubber mount degrades quickly, while a correctly chosen nitrile or neoprene mount lasts. This is where manufacturer expertise and American Society for Testing and Materials-backed material data matter. You can see the available compound and configuration options for anti-vibration mounts. Where Anti-Vibration Mounts Are Used To make the definition concrete, here are typical applications: Pumps and compressors mounted on rubber anti-vibration mounts to stop pipework and floors from shaking. Heating, ventilation and air-conditioning systems and chiller units isolated to prevent noise transmission through buildings. Generators and engines on heavy-duty mounts that handle both vibration and shock. Machine tools and computer numerical control equipment, where an anti-vibration pad maintains machining accuracy. Electronic enclosures and instruments protected from external vibration. How to Recognise the Right Mount A quick mental model: heavier and lower-frequency duties move you from pads toward bobbin mounts and then spring mounts; harsher environments move you from natural rubber toward neoprene or nitrile. The detailed selection — load rating, deflection and durometer — is its own subject, but knowing what anti-vibration mounts are and the available types is the foundation that makes that selection sensible. Frequently Asked Questions 1. What are anti-vibration mounts in simple terms? Anti-vibration mounts are resilient components, usually rubber bonded to metal fixings, placed between a machine and its support to isolate vibration, absorb shock and reduce transmitted noise. 2. What is the standard anti-vibration mount definition? The anti-vibration mount definition is a flexible mounting element installed between vibrating equipment and its base that decouples the two, so only a fraction of the machine’s vibration reaches the surrounding structure. 3. What are the main vibration isolator types? The main vibration isolator types are anti-vibration pads, cylindrical or bobbin mounts, conical and bush mounts, and spring or spring-rubber mounts — each suited to different loads and frequencies. 4. What is the difference between an anti-vibration pad and a mount? An anti-vibration pad is a simple rubber sheet placed under machine feet, often without bolting. A mount typically integrates metal fixings for secure attachment and handles a wider range of loads and directions. 5. Why are rubber anti-vibration mounts so common? Rubber anti-vibration mounts combine natural elasticity for isolation with internal damping for energy dissipation, and they are durable and economical — making rubber the default material for most machine mounting applications. Conclusion To recap what anti-vibration mounts are: they are engineered resilient components that decouple machines from their supports, protecting equipment and structures from vibration, shock and noise. Once you understand the definition,

How Do Anti-Vibration Mounts Work? The Physics Behind Vibration Isolation Ask a maintenance engineer why a pump cracked its baseplate or why a compressor shook a control panel loose, and the answer often comes back to vibration that was never properly managed. So how do anti-vibration mounts work, and why does a simple-looking rubber block solve problems that rigid bolting cannot? The short answer is that these mounts do not absorb vibration so much as decouple a machine from its surroundings — and understanding that distinction is the key to specifying them correctly. After decades of manufacturing rubber components for industrial machinery, we have found this is the concept most often misunderstood on the plant floor. The Core Problem: Energy That Has Nowhere to Go Every rotating or reciprocating machine generates vibration — small forces repeated thousands of times a minute. Bolt that machine rigidly to a floor or frame, and the vibration travels straight into the structure. Over time, it loosens fasteners, fatigues welds, creates noise, and damages sensitive equipment nearby. The energy does not disappear; it spreads. Anti-vibration mounts interrupt that path. They sit between the machine and its support, and instead of passing vibration through, they convert and isolate it. This is the heart of the vibration isolation principle. How Do Anti-Vibration Mounts Work? Two Mechanisms There are two things happening inside a mount: isolation and damping. They work together but are not the same. 1. Vibration Isolation Isolation is about flexibility. A flexible elastic element — usually rubber — allows the machine to move slightly on its own, decoupling it from the rigid structure below. Because the mount is elastic, only a fraction of the vibration force transmits through it to the foundation. Think of it as a spring inserted in the force path: the softer the spring, the less force gets through above a certain frequency. 2. Damping Damping is about dissipating energy. As the rubber flexes, internal molecular friction turns vibration energy into a tiny amount of heat. This is why rubber vibration mounts are so effective — rubber is naturally damping, so it both isolates and absorbs. Damping is especially important at resonance, which brings us to the most important concept of all. Natural Frequency: The Concept That Makes or Breaks Performance Every mounted system has a natural frequency — the frequency at which it “wants” to vibrate. The relationship between the machine’s operating or disturbing frequency and the system’s natural frequency determines whether the mount helps or actively hurts. The rule that governs a natural frequency vibration mount design is straightforward: When the disturbing frequency is well above the natural frequency, by a factor of about 1.4 or more, the mount isolates — and isolation improves as that ratio increases. When the disturbing frequency is near the natural frequency, the system hits resonance, amplifying vibration dramatically. This is the danger zone. When the disturbing frequency is below the natural frequency, the mount provides little isolation. So the design goal is to choose a mount soft enough that the system’s natural frequency sits well below the machine’s running speed. A common target is a frequency ratio of at least 3:1, which provides effective isolation with a comfortable margin away from resonance. A Practical Example Picture a compressor running at 1,500 revolutions per minute, which equals 25 hertz of disturbing frequency. To isolate it well, you would want the mounted system’s natural frequency around 8 hertz or lower — a ratio of roughly 3:1. Choose a stiff mount that puts the natural frequency at 24 hertz, and you have placed the system right on top of resonance, making the vibration worse than no mount at all. This is precisely why “how do anti-vibration mounts work” is a question about matching, not just material. You can review anti-vibration mount options designed around these principles. Static Deflection: The Field Shortcut Engineers often do not calculate natural frequency directly — they use static deflection, which is how far the mount compresses under the machine’s weight. More deflection generally means a lower natural frequency and better isolation. This is why a correctly loaded mount that compresses a sensible amount works better than one that is barely compressed. It is also why overloading or underloading a mount damages its performance: the deflection is wrong, so the natural frequency is wrong. Isolation vs. Shock Absorption It is worth separating two jobs. Continuous vibration isolation handles ongoing machinery vibration damping from running equipment. Shock absorption mounts handle sudden impacts — a press strike, a drop, or a transient jolt. Some mounts are optimised for one, while others balance both. Knowing which problem you are solving prevents specifying the wrong part. Why Material and Hardness Matter The rubber compound and its hardness, or durometer, set the stiffness, which sets the natural frequency. Softer rubber gives more deflection and a lower natural frequency — better isolation but lower load capacity. Harder rubber carries more load but isolates less. The art of a good design is balancing the load to be supported against the isolation required, and that is where compound expertise and American Society for Testing and Materials-backed material data earn their keep. Frequently Asked Questions 1. How do anti-vibration mounts work in simple terms? They sit between a machine and its support and use a flexible rubber element to decouple the two. Instead of passing vibration into the structure, the mount isolates most of it and damps the rest into tiny amounts of heat. 2. What is the vibration isolation principle? The vibration isolation principle is that a flexible mount only transmits a fraction of vibration force when the machine’s running frequency is well above the system’s natural frequency — typically by a ratio of 3:1 or more. 3. Why is natural frequency important for a vibration mount? A natural frequency vibration mount must keep the system’s natural frequency well below the machine’s operating frequency. If they coincide, resonance amplifies vibration instead of reducing it. 4. Do rubber vibration mounts also

Uses of Silicone Tubes: Where and Why Engineers Specify Them When a single material shows up in a dairy filling line, an intravenous set and a turbocharger system, it is worth understanding why. The uses of silicone tubes span industries that share almost nothing except a need for a flexible conduit that survives heat, resists chemicals and stays inert. In our experience supplying industrial rubber products since 1991, silicone is rarely the cheapest option on the table — but it is frequently the one that lasts, which is exactly why engineers keep specifying it. This article walks through the most common silicone tube applications by sector, with the practical reasoning behind each one. The goal is to help engineers and procurement teams recognise when silicone is the right answer and when something else will do. Why Silicone in the First Place? Before the applications, the properties. Silicone tubing performs across a wide temperature band, typically -60°C to +200°C, without going brittle in the cold or softening dangerously in the heat. It resists ozone, ultraviolet radiation and weathering, stays chemically inert, and can be produced in food, medical and pharmaceutical grades. It is also naturally flexible and can be sterilised by autoclave, steam or gamma radiation. Those traits explain almost every use case that follows. Food and Beverage Processing One of the largest categories of food grade silicone tube applications is hygienic fluid transfer. Breweries, dairies, juice plants and confectioners move product through tubing that must not impart taste, odour or contamination. Real examples include: Beverage and dairy filling lines, where the tube tolerates repeated clean-in-place and steam-in-place cycles. Chocolate and syrup dosing, where flexibility and temperature resistance matter. Carbonated and hot-fill product lines that swing between temperature extremes. Because the tube contacts ingestible products, these uses require Food and Drug Administration-compliant food grade material with documented traceability. Medical and Pharmaceutical Few sectors are more demanding. Medical grade silicone tubing uses rely on biocompatibility, which is why platinum-cured silicone dominates here. Typical applications include: Fluid management — intravenous lines, drainage and catheter tubing. Peristaltic pump tubing for controlled dosing in diagnostics and dialysis. Single-use bioprocess systems in pharmaceutical manufacturing. The key differentiator is certification: United States Pharmacopeia Class VI and International Organization for Standardization 10993 biocompatibility, plus full sterilisation compatibility. This is not a place for general-purpose tubing. Peristaltic Pumps Across Industries Peristaltic pump tubing deserves its own mention because it crosses sectors. In a peristaltic pump, rollers squeeze the tube to move fluid, so the tube is the only part contacting the media — and it flexes millions of times. Silicone’s elasticity and fatigue resistance make it a standard choice for dosing chemicals in water treatment, transferring fluids in laboratories, and metering ingredients in food production. Tube hardness and wall thickness directly determine pump life and flow accuracy here. Automotive and Transport An automotive silicone hose handles heat and vibration that would crack conventional rubber. Common uses of silicone tubes in vehicles and engines include: Coolant and radiator hoses that endure under-bonnet heat cycling. Turbocharger and intercooler connections subject to hot, pressurised air. Vacuum lines and breather hoses. Motorsport and commercial vehicles favour reinforced silicone hoses for their durability under sustained thermal load. Electronics and Electrical Silicone is electrically insulating and heat resistant, making it useful for protective sleeving over wiring and cable bundles, insulation in high-temperature equipment, and protective conduits in light-emitting diode and lighting assemblies. Here, the tube is not carrying fluid — it is protecting components from heat and abrasion. General Industrial and Manufacturing Beyond the headline sectors, everyday industrial silicone tube applications include compressed air and gas transfer, low-pressure fluid lines, gasket and sealing profiles, and protective sleeving on machinery. These are typically served by industrial-grade silicone where food or medical certification is not required, keeping cost sensible. You can review the silicone product options for these duties. Matching the Use to the Right Grade The most useful thing to take from this list is that the uses of silicone tubes map directly to grade selection: Plant air, water and sleeving → Industrial grade Anything ingestible → Food grade Anything entering the body or pharmaceutical fluid path → Platinum-cured medical grade Specifying a medical-grade tube for a compressed-air line wastes money; specifying an industrial tube for a beverage line creates compliance risk. Match grade to duty every time. Frequently Asked Questions 1. What are the main uses of silicone tubes in industry? The main uses of silicone tubes include hygienic fluid transfer in food and beverage, fluid management and dosing in medical and pharmaceutical settings, coolant and turbo hoses in automotive applications, protective sleeving in electronics, and general air, gas and fluid transfer in manufacturing. 2. Why is silicone preferred for peristaltic pump tubing? Peristaltic pump tubing must flex millions of times without cracking. Silicone’s elasticity and fatigue resistance provide consistent flow and long service life, which is why it is a standard choice for dosing and metering pumps. 3. Are food grade silicone tube applications the same as medical ones? No. Food grade silicone tube applications must meet food-contact requirements, while medical uses require biocompatibility certification such as United States Pharmacopeia Class VI and International Organization for Standardization 10993. Medical grade is the stricter and more costly specification. 4. Can an automotive silicone hose replace standard rubber hose? Yes, where heat and vibration are concerns. An automotive silicone hose withstands higher temperatures and resists cracking better than standard rubber, which is why it is used for coolant, turbocharger and intercooler connections. 5. Is silicone tubing suitable for high-temperature applications? Yes. Silicone tubing typically performs from around -60°C to +200°C, making it well suited to high-temperature fluid and air transfer where conventional rubber would degrade. Conclusion The breadth of the uses of silicone tubes — from a brewery filling head to an operating theatre to a turbocharger — comes down to one thing: a flexible, inert material that survives heat, chemicals and repeated flexing. The right choice always starts with the duty and the required

Selection Guide to Silicone Tube: How to Choose the Right Grade, Size and Durometer Choosing the wrong tubing is an expensive mistake — it shows up as premature failure, contamination, or a line that fails validation months after installation. This selection guide to silicone tube is written for the people who actually carry that risk: design engineers, maintenance teams and procurement managers who need a part that performs in the real world, not just on a datasheet. Over three decades of manufacturing rubber components, we have seen the same handful of selection errors repeat across industries, and almost all of them are avoidable with a clear checklist. Silicone earns its place in demanding applications because it stays flexible from roughly -110°C to +260°C, resists ozone and ultraviolet radiation, and is chemically inert enough for food and medical contact. But “silicone tube” is not a single product. The right choice depends on grade, hardness, dimensions, pressure rating and certification — and getting one of those wrong undermines the rest. Start With the Application, Not the Catalogue Before looking at any specification sheet, write down four things: what flows through the tube, the temperature it sees, the pressure or vacuum it carries, and the regulatory environment it operates in. A peristaltic pump in a dairy plant and a coolant line in an electronics enclosure may both use silicone, but almost nothing else about the specification matches. A common procurement shortcut is to reorder by part number without revisiting the application. Processes drift — a higher clean-in-place temperature, a new aggressive cleaning chemical, a faster pump speed — and the original tube quietly becomes the wrong choice. Revalidate the requirement whenever the process changes. Match the Grade to the Duty Grade is the first hard filter in any selection guide to silicone tube. Industrial Grade General-purpose silicone for air, water, low-pressure transfer and protective sleeving. It is cost-effective where there is no food, medical or pharmaceutical contact. For most plant and original equipment manufacturer uses, this is the sensible default. Food Grade Silicone Tube If the tube touches anything ingestible, you need food grade silicone tube that complies with Food and Drug Administration 21 Code of Federal Regulations, Section 177.2600, or an equivalent standard. This matters for breweries, dairies, beverage filling and confectionery. Ask specifically whether the compound is tested for extractables, not just labelled “food safe.” Platinum Cured Silicone Tube (Medical / Pharmaceutical) Platinum cured silicone tube uses a platinum catalyst instead of peroxide. The result is lower extractables, no curing by-product odour, and far better biocompatibility — which is why it dominates pharmaceutical fluid transfer and medical devices. It costs more, so reserve it for applications that justify it rather than specifying it by reflex. Get the Dimensions Right: Inner Diameter, Outer Diameter and Wall Silicone tube diameter is defined by inner diameter, outer diameter and wall thickness. Inner diameter controls flow; outer diameter and wall thickness determine how the tube seats on fittings and how much pressure it can hold. Three practical rules save a lot of grief: Specify inner diameter and outer diameter together, with tolerances. A nominal “8 millimetre tube” means little without knowing whether that’s the inner diameter or outer diameter. Thicker walls handle more pressure and resist kinking, but reduce flexibility around tight bends. For barbed fittings, the inner diameter should be slightly smaller than the barb so the tube grips securely. Choose the Correct Hardness (Durometer) Hardness is measured on the Shore A hardness scale. Soft tubing, around 40–50 Shore A, is flexible and seals well on fittings but balloons under pressure. Harder tubing, around 60–70 Shore A, holds shape and pressure better but is stiffer to route. For peristaltic pumps, hardness directly affects pump life and flow consistency, so follow the pump manufacturer’s recommended range. Confirm Temperature and Pressure Limits Together Silicone’s temperature rating is one of its biggest advantages, but high-temperature silicone tubing still has limits that interact with pressure. A tube rated to 200°C at ambient pressure will not hold the same pressure as it would at room temperature — elevated heat lowers the safe working pressure. Always check the manufacturer’s pressure rating at your actual operating temperature, and apply a safety factor, commonly 3:1 or 4:1, over your maximum working pressure. Do Not Skip Certification and Documentation For regulated industries, the paperwork is part of the product. Depending on the sector, you may need United States Pharmacopeia Class VI, International Organization for Standardization 10993, Food and Drug Administration compliance, or a 3.1 material certificate. Reputable suppliers back their tubing with batch traceability and test reports. At UMABOND, in-house American Society for Testing and Materials testing supports the compounds we supply, and you can review our silicone product range at umabond.com/silicon-profiles/ when scoping a specification. A Quick Selection Checklist To summarise this selection guide to silicone tube into something you can use at your desk: Define the media, temperature, pressure and regulatory environment. Select grade: industrial, food grade, or platinum cured medical. Specify inner diameter, outer diameter and wall thickness with tolerances. Choose durometer to balance flexibility against pressure stability. Verify pressure rating at operating temperature with a safety factor. Confirm certifications and demand documentation. Run through these six steps and you will eliminate the overwhelming majority of field failures before the order is placed. Frequently Asked Questions 1. What is the most important factor in a selection guide to silicone tube? The application requirements — media, temperature, pressure and regulatory needs — come first. Every other specification, from grade to durometer, flows from those four inputs. 2. What is the difference between peroxide and platinum cured silicone tube? Platinum cured silicone tube has lower extractables, no curing by-products and better biocompatibility, making it suited to medical and pharmaceutical use. Peroxide-cured silicone is more economical and fine for general industrial duties. 3. How do I choose the right silicone tube diameter? Specify inner diameter for flow and outer diameter plus wall thickness for fit and pressure. Always quote tolerances, and size