1.General IntroductionNatural rubber was originally derived from latex found in the sap of rubber trees. The purified form of natural rubber can also be produced synthetically. Natural rubber is an ideal polymer for dynamic or static engineering applications.Temperature RangeLow Temperature Usage: -20° to -60° F | -29° to -51°CHigh Temperature Usage: Up to 175° F | Up to 80°CTensile StrengthTensile Range (P.S.I): 500-3500Elongation (Max %): 700Durometer Range (Shore A): 20-100ResistanceAbrasion Resistance: ExcellentTear Resistance: ExcellentSolvent Resistance: PoorOil Resistance: PoorAdditional PropertiesAdhesion to metals: ExcellentAging Weather - Sunlight: PoorResilience - Rebound: ExcellentCompression Set: ExcellentCaution: Natural Rubber is not recommended for applications where the rubber part will be exposed to ozone, oils or solvents. 2.Product DescriptionItemNatural NR rubber molded productsMaterial standard:ASTM D2000, SAE J200.Tolerance standard:RMA A1,A2,A3, DIN ISO 3302-1,DIN-7715/BS-3734ColorBlack or according to customers' requirementsTechnologyMolded Rubber PartsHardnessFrom 30 Shore A to 90 Shore ADelivery time20-35days after prepayment received ShipmentBy express(DHL/UPS/FEDEX)/By sea/By airPortFOB SHANGHAI OR NINGBOPacking Details:pp bag insidecarton box outsideAccording to clients' requirement