Anti-water oil and rubber O-rings

EPDM rubber (EPDM) rubber O-rings: temperature range of -50 degrees to 150 degrees, with a width of hot water, steam-resistant, anti-aging and resistance to chemicals and other characteristics.

EPDM rubber (EPDM) rubber O-ring: EPDM is ethylene, propylene and a non-conjugated diene terpolymer. It is suitable for hot water, steam, detergents, potassium hydroxide solution, silicone oil and grease, dilute acids and a variety of chemical (drug) products. Especially recommended its resistance to glycol brake fluid characteristics, but it is not all mineral oil products (lubricants, fuels).

Advantages:

Having superior water vapor resistance, resistance to oxidation, ozone resistance, insulating properties, and resistance to erosion in animal and vegetable oils, ketones such as fat and have good resistance to

Disadvantages:

Because the molecular structure of a lack of active groups, cohesive energy is low, coupled with rubber easy-blooming, self-adhesive and mutual viscosity is poor.

Nitrile butadiene rubber (NBR) rubber O-ring: this material is the highest temperature up to 130 degrees, has a hardness of 50-90 degrees, complete specifications, it has good mechanical properties, resistance to mineral-based oils and grease.

(Nitrile Rubber) by the acrylonitrile and butadiene polymerization, acrylonitrile content from 18% to 50%, the higher the acrylonitrile content, resistance to petrochemical oil hydrocarbon fuel the better, but the low temperature performance worse, the general temperature range of -25 ~ 100 ?. NBR rubber is currently one of the most commonly used rubber seals and O-rings.

Advantages:

With good resistance to oil, water resistance, solvent resistance and resistance to high pressure oil properties.

With good compression distortion, wear and elongation force.

Disadvantages:

Not suitable for polar solvents being, such as ketones, ozone, nitro hydrocarbons, MEK and. - For the production of fuel tank, oil tank and oil-based hydraulic oil, gasoline, water, silicone grease, silicone, diester Department of lubricating oil, hydraulic oil, glycol-based fluid medium used in rubber parts, especially the sealing parts . It can be said is the most widely used and lowest cost rubber seals.