Kelong New Materials
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UN USI UPI Type Polyurethane Oil Seal
This is a high-performance single-acting U-shaped seal designed to provide the driest seal in light and medium load applications. It can be used in heavy-duty applications when used with a stop ring. Features include easy installation and excellent low-temperature resistance.
Primary Application: Piston, Piston Rod
Material: PU (Polyurethane)
Temp Range: -30°C to 125°C | Hardness: 40-90A
Advantages: Excellent oil resistance and stability, widely used, affordable.
Temp Range: 20°C to 250°C | Hardness: 50-90A
Advantages: Wear resistance, acid and alkali resistance, high temperature resistance.
Temp Range: 60°C to 225°C | Hardness: 25-90A
Advantages: Food grade, good heat/cold resistance, water resistance.
Temp Range: 50°C to 150°C | Hardness: 40-90A
Advantages: Excellent ozone, heat, steam, and cold resistance.
Temp Range: -44°C to 120°C | Hardness: 60-90A
Advantages: Excellent mechanical strength and fatigue resistance.
Temp Range: -30°C to 160°C | Hardness: 50-90A
Advantages: Superior ozone and heat resistance compared to butadiene rubber.
| Material Type | High Temp (°C) | Low Temp (°C) | Properties & Performance |
|---|---|---|---|
| ACM | 150 | -10 | Used in automotive diaphragms/hoses. Good resistance to heat, ozone, and oil. |
| NR | 70 | -40 | Excellent compression set, high tensile strength, and abrasion resistance. |
| VMQ | 225 | 55 | Wide temperature range, good weather/ozone resistance. |
| PTFE | 250 | -150 | Low friction coefficient, ideal for oil seal lips. |
| TPU (PU) | 100 | -40 | High tensile strength, abrasive and tear resistance. Extremely durable. |
| XNBR | 100 | -40 | Carboxyl group insertion for better tensile strength and abrasion than standard NBR. |
