Table of Contents
Is Kalrez the same as FFKM?
A well-known manufacturer of Perfluoroelastomer (FFKM/FFPM) parts is DuPont ™ with its own brand Kalrez®.
Is Kalrez a Teflon?
In addition, Kalrez® is a thermoset perfluoroelastomer part and offers excellent elastic properties and resistance to mechanical damage, unlike PTFE which is a thermoplastic and appears to lack the necessary resilience to withstand mechanical shock in a process application such as this.
What is Kalrez rubber?
Kalrez is chemical-proof synthetic rubber. It maintains the properties of rubber even at high temperatures. The key strengths of Kalrez are that it has both the elasticity and seal characteristics of an elastomer and the chemical resistance and thermal stability of Teflon.
Is kalrez a fluoropolymer?
DuPont™ Kalrez® perfluoroelastomer parts combine the elastomeric properties of fluoroelastomers with the chemical resistance of DuPont™ Teflon® fluoropolymer resins.
Is Kalrez 6375 FDA approved?
FFKM – 80 Shore A – Kalrez 6375 The temperature that these FFKM O-rings can handle is from -20 °C to +270 °C. These O-rings are FDA approved. The hardness of this O-ring is 80 Shore.
What color is Kalrez?
Kalrez® 8900 perfluoroelastomer parts are a black product for all thermal processes, e.g., oxidation, diffusion furnace, metal CVD, ALD and LPCVD. It offers outstanding thermal stability, very low outgassing and excellent (low) compression set properties.
What is the difference between Chemraz and kalrez?
The effective temperature range for Kalrez is +5ºF to + 600ºF, for Chemraz –20ºF to +450ºF. A white Chemraz compound is available and features less impurities and less electrical conductivity.
Are Viton o-rings better?
While both materials are suitable for moderate temperature applications, Viton® is the superior choice for high temperatures. Viton® standard compounds can withstand temperatures up to 446℉, while Buna o-rings can only handle up to 257℉.
What are Viton o-rings good for?
Viton® O-Rings Viton seals also feature some chemical resistance and are ideal in pumps used for agricultural, pest control, disinfection, mold remediation, and lawn care sprayers because of its resistance to hydrocarbons found in some of the compounds used.
What is the most durable o-ring material?
Fluorocarbon (Viton®) Offering outstanding chemical and high-temperature resistance, fluorocarbon O-rings are among the most durable and versatile available. They are particularly valuable in aircraft engines and automotive fuel handling systems because they resist swell in high-octane and oxygenated fuels.
What are Viton O-rings used for?
A Viton™ seal is simply a seal manufactured from Viton™. These seals or gaskets are commonly used to seal leaks, valves, pumps and similar. Viton™ o rings are the most common type of seal, which we provide here at NES in a variety of sizes and profiles.
Why choose Kalrez O-rings?
Kalrez o-rings are engineered for the most demanding application conditions, such as high temperature sealing or extreme o-ring chemical compatibility.
Why Kalrez spectrum 7075 O-rings?
Kalrez ® Spectrum™ 7075 O-rings have a glossy finish. This product was specifically developed for the chemical and hydrocarbon industries to provide improved chemical and thermal resistance better than the industry standard set by Kalrez ® 4079.
What is the difference between Kalrez ® 4079 and 6375?
Kalrez ® 4079 compounds feature low compression set performance o-rings. Kalrez ® 6375 compounds are widely used in the chemical process industry, as they have excellent broad chemical resistance and mechanical properties.
What are Kalrez® O-rings made of?
Kalrez ® o-rings from Marco Rubber are available in a wide variety of DuPont perfluoroelastomer compounds, including Kalrez ® 4079, Kalrez ® 6375, Kalrez ® 7075 to meet extreme application conditions like high temperature o-ring sealing and extreme o-ring chemical compatibility.