A foamed sealing strip is a kind of sealing strip which is processed to have pores inside it by using the characteristics of certain raw materials. It is divided into EPDM foam sealing strip, silicone foam sealing strip and PU foam sealing strip. The foam sealing strip is formed by microwave vulcanization technology at one time, and the surface is smooth and beautiful without any trace. Excellent elasticity and resistance to shrinkage and excellent aging resistance. Excellent flame retardant function, low smoke and low toxicity; stable product function and high scale accuracy.
Rubber foam seal characteristics:
Use of leading thermoplastic rubber (TPE) or nitrile rubber in combination with chlorosulfonated polyethylene;
Anti-ozone property, anti-UV optical rotation performance, good chemical resistance, wide temperature range (-60 ° C to 135 ° C);
It has strong tear resistance and tear resistance. The temperature range is between -10 °C and 150 °C. It will not break after millions of twists and turns;
Quickly restore the original appearance after compression, and maintain its original flexibility even in harsh environments;
Environmentally friendly rubber-plastic composite rubber, non-toxic, environmentally friendly, and pollution-free. Because EPDM sealant strips lack polarity and low unsaturation, it is suitable for various polar chemicals such as alcohols, acids, alkalis, oxidants, refrigerants, detergents, animal and vegetable oils, ketones and fats. Good resistance;
However, it is less stable in aliphatic and aromatic solvents (such as gasoline, benzene, etc.) and mineral oil. The function should also be reduced under the effect of concentrated acid for a long time.