Fluororubber (FKM) has the highest heat, oil, and fuel oil resistance of all rubber materials, but it has disadvantages in terms of low temperature performance and cost. The material includes binary polymers consisting of vinylidene fluoride (VDF) and hexafluoropropylene (HFP), and ternary polymers consisting of VDF and HFP with tetrafluoroethylene (TFE) as an oil/fuel oil …
FKM Compounds. FKMs or fluoroelastomers, are a family of elastomers with resistance to a broad range of chemicals coined with very good high temperature properties. Specialty types with differing monomer compositions and fluorine content are tailored for superior fluid resistance, low and high temperature performance, and coinations thereof.
FEPM. Available hardness (Shore A) 60-95. Operating temperature -50 / 150. Typical appliions profiles, hoses, parts, in all sorts of appliions.
stand the effects of high-temperature exposure of sealing materials within water-based hydraulic fluids. Until now, these two materials have not been thoroughly tested together at high temperatures. Water glycol fluids consist of a solu-tion of water, ethylene or diethylene glycol, usually a high molecular-weight polyglycol and an additive package.
HPS Performance FKM lined hose has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics, and many organic solvents and chemicals. FKM can handle the occasional flow of ethanol based fuels. Technical Specifiion - Product Type: FKM Lined Silicone Hose - Reinforced Layer: 1-ply Polyester Reinforced - Temperature …
The typical working temperature range for FKM ranges from – 20°C to +230°C. FVMQ – Fluorosilicone Rubber Fluorosilicone Rubber (FVMQ) can operate over a …
Dynamic seal appliions with FKM based products have been successful at -40°C, and in some cases, appropriately designed parts can still offer static sealing capabilities down to -60°C. Polycomp is having special low temperature FKM elastomers in its portfolio for sealing at extremely low temperatures.
Each elastomer has a temperature range that it works best in. This resource outlines these ranges as well as other useful information. Rubber Fab’s Material Temperature Chart lists temperature ratings in Fahrenheit for Buna, EPDM, FKM (Viton®), Silicone, PTFE, Tuf-Flex®, Tuf-Steel®, Kalrez® and the GYLON® line.
Designed for demanding appliions requiring exceptional durability in aggressive environments, ARLANXEO''s HNBR rubber Therban® offers many benefits, such as a high resistance to oil and grease, ability to function at temperatures from - 40 °C to 165 °C, superior performance in aggressive fluids such as power steering fluids, automatic transmission fluids, engine oils, …
24/6/2020· FKM is an excellent high-temperature-resistant rubber, which retains its good mechanical properties and chemical resistance (oils, fuels, lubricants and most mineral acids), even at extremely high temperatures. Products moulded in FKM remain elastic when exposed to air oven ageing up to 205°C or intermittent exposures up to 316 °C.
The study extends the HNBR data available in the. literature to cyclic tension, and expands the data for FKM materials to include the tem p erature range. from −20 to 150 o C. For the high
A range of materials offer the capability to provide resistance to fuel and high temperatures. These materials include Viton® / FKM, HNBR and FFKM elastomers. These materials are suitable for fuel injection seals, fuel pump seals, manifold gaskets and diaphragms. Transmission fluid seals are primarily designed to stop fluid leakage in order to
The saturation of nitrile in HNBR improves its heat and ozone resistance. HNBR offers extraordinarily good mechanical properties and abrasion resistance. Appliions for HNBR include seals, hoses and belts. Low Temperature: -22°F/-30°C. High Temperature: 284°F/140°C and for a short period of time up to 320°F/160°C.
The higher the temperature (above 230 deg C), the faster the degradation in Fluorosilicone (FVMQ). Note –. When the hose is reinforced with Polyester, it should be used at a maximum of +180⁰C. When reinforced with 100% meta-aramid, along with specialty Silicone-rubber grades, a Fluorosilicone-lined or FKM-lined Silicone Hose can be used at
4/6/2021· Huge temperatures range (- 45°C – 204°C). High density and also high quality feel Outstanding chemical resistance. Disadvantages of FKM Less chemically resistant just as FFKM to chemicals yet still excellent for most purposes. Lesser temperatures array to FFKM’s but nevertheless a lot better than various other elastomers.
16/3/2003· HNBR is great in an environment of diluted acids, bases and salts. This also applies to situations where these environments are accompanied by increased temperature and acid gases or glycol mixtures. The elevated temperature is exactly 150 degrees Celsius. Sometimes HNBR can periodically withstand temperatures as high as 190 degrees Celsius.
The typical service temperature of FKMs is between -20°C (-5°F) and +230°C (+445°F). They can, however, withstand temperatures up to 300°C for a short period of time. However, at high service temperatures FKMs are weak, so that the design must prevent any high loads. Notes. Viton ® is a registered trade mark of DuPont Performance Elastomers.
To conclude, the low temperature performance can be influenced to a small degree by changes in hardness, modulus, contact media and in the case of NBR/HNBR by the selective use of plasticisers. If the elastomer is subjected to high temperatures before cooling, the effects of plasticizer loss will need to be considered. High
1/2/2016· FKM compounds are generally stated to have enhanced high-temperature capabilities compared to HNBR compounds . This capability though, is mainly regarding unstrained ageing at high temperatures. This capability though, is mainly regarding unstrained ageing at …
temperatures of the Fluorocarbon Rubber range between -20 °C /-4 °F and +200 °C /+392 °F (for a short period of time up to +230 °C /+446 °F). Suitable formulated FKM can be used down to -35 °C /-31 °F. FKM is also often used with mineral based oils and greases at high temperatures. FVMQ (Fluorosilicone Rubber)
polyamide thermoplastic, a vulcanized fluorocarbon rubber (FKM), and vulcanized hydrogenated acrylonitrile-butadiene rubber (HNBR). Currently, these TPV materials consistently meet all required material properties for production of high-temperature tubing, except for compression set resistance. The focus of this honors project was determining what
Fluorocarbon (FKM) has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static appliions is limited to approximately -26°C (-15°F) although certain compounds are suitable down to -54°C (-65°F).
High temperature sealing up to 204 °C (399 °F) Viton™ GLT-600S is a medium viscosity fluoroelastomer that is an excellent choice for FKM sealing appliions: High temperature sealing up to 204 °C (399 °F) Outstanding performance in low-temperature sealing appliions. Resistance to acids, steam, and hydrocarbons.
19/11/2018· FKM Industrial Uses. FKM is widely used in the aerospace and automotive industries amongst others. These are industries in which high temperatures and compression levels are common. The use of FKM seals, gaskets, hoses and diaphragms reduce heat and corrosion problems in many factories and plants.
Tecnoflon® FKM/FFKM have a low compression set that is maintained at high temperature (>150°C) over time, resulting in better seals with higher and constant sealing force than materials like HNBR. This allows to increase the lifetime of the parts, reduce maintenance and shutdown times, and therefore decrease overall costs.
1/4/2013· Turbo charger hose constructions based upon an inner layer of FKM and outer layers of high temperature AEM can provide better heat resistance than AEM and ACM constructions, and more robust adhesion and improved cost than FKM/VMQ constructions in appliions operated at temperatures under 200[degrees]C.