SBR/NR General Purpose Rubber Sheet

Beijing Dewei Rubber & Plastic Products Co., Ltd is  a leading Chinese NR/SBR Rubber Sheeting producer. Besides quality control measurements other manufacturers had invested, we have strict tolerance control on thickness by three points laser measuring instruments in our production. Ours Products are fully compliant to REACH, ROHS and PAH standards.

The High Quality NR/SBR blended Rubber sheet is a good gasket material due to excellent physical properties. Natural rubber has superior resilience, tensile, elongation and abrasion resistance, good low temperature flexibility and compression set and excellent adhesion to fabric and metals.

Vulcanized rubber sheets made from blend of good quality dry natural rubber, Synthetic styrene-Butadiene rubber and small quantity of reclaimed rubber, containing additives such as antioxidants, mineral and carbon black fillers for reinforcement and chemicals for vulcanization.

Rubber SBR has outstanding resistance to heat, moisture, and heavy abrasions, it is the perfect synthetic rubber material for industrial applications. It provides the smooth finish and enhanced durability gained by the solid rubber in the vulcanization process. SBR makes a great protective barrier because it can absorb shock, limit vibration, and reduce noise.

 Important knowledge before purchase:

• A lot of producers will use low cost reclaimed rubber and low quality additive oil in production, which caused odor smelling in finished products. these type of products will continue giving out such smelling when clients bring them home or office place.   
• some producers won't screen the rubber materials and its mixers at the beginning and before calendering process, which won't get rid of remains of metal parts or metal pieces from relcaimed/recycled rubber process, therefore, the rolls of rubber sheets with metal pieces may damage the machine tools in stamping process if these rolls are to be processed into rubber gaskets or seals.
• we have taken measurement and investment of facility to avoid metal pieces in our process, we will hold full responsibility to bear the cost of above damages and surely use food grade oil and environmental raw materials to help you prevent any risk in your business. 

Question: Why are the rubber sheets you received is harder than you ordered from some Chinese companies. 

Answer: Some producers produce rubber sheets with very high temperature and high speed rotocurer rotation, so that they can get high productivity. However, the rubber sheet hardness will increase or decrease after some time. the short vulcanization time gives qualified hardness when the rubber is produced, but the inside of the rubber sheet is over vulcanised or less vulcanised, depending on the thickness of the rubber sheet. when these rubber sheets are packed, it will continue the vulcanisation in transportation or storage. normally the rubber gets harder than specified.

NOTE: Please pay much attention of the quotes from other suppliers that the cost may vary because of material used in production. Some factory may use low quality rubber which has odor smelling and do harm to people's health. Some rubber may cause serious marking on the original floor due to the cheap chemical additives extraction from the rubber sheet. Some raw rubber may contains metal piece which may damage your stamping blade/tooling and stop your production process. Our rubber sheet is produced for European market, Our compound had been tested by Third party and comply to REACH and ROHS.