? CR
? EPDM
? NBR/PVC
? EVA Sponge
? CPE
? CSM
? BR
? NR

EXPANDED (FOAM, CELLULAR, SPONGE) RUBBER

We can meet your own specification for your special use if you send us your original samples together with technical data. Our products are widely used in the field of car industry, electric & electronics, ships, architecture, computer accessories, health supports, footwear and in the leisure industry such as swimming pools, aerobic halls and health centers, etc. Besides the products listed below we have developed a lot more items by our customers' special demands and we can supply you with open cell products if you send us your specification with an original sample. EXCELLENT PRETTY GOOD GOOD POOR BAD REMARKS Weatherability resistance Ozone resistance Oxidation resistance Sunshine resistance EPDM CSM CPE EVA CR . NR SBR BR NBR . The state of cracking on the surface in the state of nature such as zone, oxygen and sunshine. Heat aging resistance FLUORINE SILICON EPDM CR IIR CSM CPE . NR SBR BR NBR EVA The state of deformation, solidification and cracking at high temperature of 50~200 degrees. Chemical resistance CSM CPE CR EVA EPDM NR SBR BR NBR . The state of deformation, solidification and cracking when they touched acid, alkali and other chemicals. Oil resistance NBR CSM CR CPE IIR EPD M . Extent of deformation when they touched oil & solvent. Air filtering Impact absorbtion IIR EPDM CR NR . . Suitability of application to deflation of tube, boat or vibration resistance rubber. Abrasion resistance NBR BR CSM NR SBR EPDM CR EVA . . Extent & state worning out by continuous abrasion like tires. Impact resilence NR BR SBR CR NBR CSM EPDM CPE EVA Extent of expansion and contraction like a rubber ball. Elongation NR CR EPDM SBR CSM CPE EVA Extent of expansion and force of restitution like rubber bands. Discoloration CSM EPDM . . . CR Extent of discoloration in case of exposing against sunshine or heat. * KM, OM, ACM and CO are special rubbers of high prices with high quality (all are excellent in all properties listed above). POLYMER DATA TEST CONDITION CR 1 CR 2 CR 3 EDPM 1 EPDM 2 CPE NBR/PVC EVA 1 EVA 2 EVA 3 DENSITY G/? 0.20 ~0.25 0.15 ~0.20 0.25 ~0.30 0.15 ~0.20 0.15 ~0.25 0.23 0.05 ~0.25 0.15 ~20 0.15 ~20 0.1 ~0.07 HARDNESS SHORE C 5� 10 15� 3 45� 3 15� 25� 35� 5 20� 50� 5 50� 5 30� 5 COMPRESSION SET 25% AFTER 7 HRS AT 25 DEGREES CELCIUS 90 % 60 % 30 % 70 % 60 % 60 % 80 % 65 % 65 % 70 % COMPRESSION DEFLECTION UNDER -25% G/? 100 300 1000 300 600 700 300 700 700 400 WATER ABSORBTION W 'T% MAX 5 5 5 5 5 5 5 5 5 5 CONSTANT USE TEMP DEGREE CELCIUS -30 +120 -30 +120 -30 +120 -70 +150 -70 +150 -30 +100 -10 +90 -10 +60 -10 +60 -10 +60 LINEAR SHRINKAGE 70 DEGREES CELCIUS 24 HRS MAX(%) 3 3 3 3 3 3 3 3 3 3 ELONGATION % 600 350 200 350 250 200 200 200 150 150 TENSILE STRENGTH KG/? 7 9 15 8 10 12 9 15 12 8 TEAR STRENGTH KG/CM 1.8 2.4 4.0 2.4 3.0 3.0 2.4 6.0 5.0 3.0 OZONE RESISTANCE 40PPMM CHACK TIME 24 HRS 24 HRS 24 HRS 72 HRS 72 HRS 72 HRS 24 HRS 48 HRS 48 HRS 48 HRS