Characteristics and Disadvantages of Special Rubber-SKY Rubber
- Silicone rubber (Q)
Advantages: It has an extremely wide temperature resistance range, and is resistant to both high temperatures (up to 300°C) and low temperatures (down to -100°C). It is currently the rubber with the best cold and high temperature resistance. It also has excellent electrical insulation, high thermal oxidation and ozone stability, and strong chemical inertness.
Disadvantages: low mechanical strength, poor oil resistance, solvent resistance, acid and alkali resistance, difficult to vulcanize, and expensive.
Operating temperature range: -60～200℃
- Fluororubber (FPM)
Advantages: High temperature resistance (up to 300°C), acid, alkali and oil resistance are the best among oil-resistant rubbers; radiation resistance and high vacuum resistance are good, electrical insulation, mechanical properties, chemical corrosion resistance, ozone resistance and atmospheric aging resistance are excellent.
Disadvantages: poor processing performance, high price, poor cold resistance, low elasticity and breathability.
Operating temperature range: -20～200℃
- Polyurethane rubber (AU/EU)
Advantages: It has the best wear resistance among all types of rubber, high strength, good elasticity, and excellent oil resistance; it also has excellent ozone resistance, aging resistance, and air tightness.
Disadvantages: poor temperature resistance, poor water resistance and alkali resistance, weak tolerance to aromatic hydrocarbons, chlorinated hydrocarbons, ketones, esters, alcohols and other solvents.
Operating temperature range: -30～80℃
- Acrylic rubber (ACM/AEM)
Advantages: Good heat and oil resistance, good stability in lubricants containing sulfur, phosphorus and chlorine additives; aging resistance, oxygen resistance, ozone resistance, UV resistance, and excellent air tightness.
Disadvantages: poor cold resistance, not resistant to water, steam and organic/inorganic acids and alkalis; severe swelling in water-soluble solutions such as methanol, ethylene glycol, ketone esters, and poor elasticity and wear resistance, poor electrical insulation and poor processing performance.
Operating temperature range: -25～150℃
- Chloroether rubber (CO/ECO)
Advantages: Excellent resistance to aliphatic hydrocarbons and chlorinated hydrocarbon solvents, outstanding alkali resistance, water resistance and aging resistance; good ozone resistance, weather resistance, heat resistance and air tightness.
Disadvantages: low strength, poor elasticity, and poor electrical insulation.
Operating temperature range: -40～140℃
- Chlorinated polyethylene rubber (CM/CPE)
Advantages: good fluidity and easy processing; excellent weather resistance, ozone resistance, corona resistance, heat resistance, acid and alkali resistance, and oil resistance.
Disadvantages: poor elasticity, large compression deformation, and low electrical insulation.
Operating temperature range: -20～120℃
- Chlorosulfonated polyethylene rubber (CSM)
Advantages: Excellent ozone resistance and aging resistance, better weather resistance than other rubbers; good flame retardancy, heat resistance, solvent resistance, resistance to most chemicals, acid and alkali resistance; acceptable electrical insulation, and wear resistance similar to styrene-butadiene rubber.
Disadvantages: poor tear resistance and poor processing performance.
Operating temperature range: -20～120℃