1. EPDM Sealing Gasket (Ethylene Propylene Rubber)

✅ Features:

Full name: Ethylene Propylene Diene Monomer

Strong weather resistance: Very resistant to ozone, UV rays and aging

Good temperature resistance: -50℃ to +150℃ (some formulas can withstand up to +180℃)

Excellent resistance to water vapor, hot water and cold water

Good electrical insulation

Corrosion resistance to polar liquids (such as alcohol, ketones)

❌ Not suitable for:

Not oil resistant (such as mineral oil, gasoline, motor oil)

Not suitable for strong acid, strong alkali and non-polar solvent environments

? Applications:

Tap water pipe seals

HVAC systems

Outdoor equipment seals

Food grade water seals (FDA grade formula)

? 2. TPU Sealing Gasket (Thermoplastic Polyurethane)

✅ Features:

Full name: Thermoplastic Polyurethane

High elasticity, high wear resistance, excellent tear resistance

Good oil resistance and chemical resistance

Can be molded by injection molding, extrusion, hot pressing, etc.

Temperature range: -40℃ to +80~120℃ (slightly different for different types)

❌ Not suitable for:

Long-term use in high temperature environment (easy to soften)

Strong acid and alkali corrosion environment

Some models may hydrolyze after long-term immersion in water

? Application:

Hydraulic system seals (piston rings, oil seals)

Industrial equipment, pumps and valves, brake system seals

Sports equipment and wearable devices

? 3. PTFE sealing gaskets (polytetrafluoroethylene)

✅ Features:

Full name: Polytetrafluoroethylene, commonly known as "Teflon" or "Teflon"

Extremely high chemical stability: resistant to almost all chemicals (acids, alkalis, solvents)

Extremely wide temperature range: -180℃ to +260℃

Extremely low friction coefficient, strong non-stickiness

No water absorption, anti-aging, excellent electrical insulation

❌ Not suitable for:

Poor flexibility, easy cold flow (filler required)

High cost

Not suitable for seals requiring high elasticity (usually used for static sealing)

? Applications:

Chemical and pharmaceutical equipment seals (corrosion resistance)

Food equipment, clean equipment

High temperature and high pressure environment seals

Medical equipment