silicon seal 1.Eco-friendly,SGS Certificate 2.100% silicone 3.heat resistance,good reselience 1.Material: NBR, NR, FPM, SR,SBR,CR, EPDM etc.2.High/low temperature-resistant, wearing-resistant,oil resistant 3.Colour:balck, blue,brown,green,red and white4.We can also produce according to your samples and drawings.More than 20 years experience and service in rubber industry