... and elasticity 3,Customized design Rubber block/plastic block/hard rubber block/rubber skim block/silicone rubber block This EPDM bock ... for sealing,EPDM is one of most-used rubber for it's long lifetime about 10 years ... we can offer are Silicone,NBR,SBR,IIR,NR,CR,FKM,ACM,PU,BR,IR,and foam rubber can ... explore the ideal dimension. b,All hardness on rubber can be tested on samples,and samples will be ...