Complaint
Item | Test Method | Unit | Technical date | ||||||
| SR2230U | SR2240U | SR2250U | SR2270U | SR2280U | SR985U | ||||
| Mechanical properties, 1.1after 1st vulcanization | |||||||||
| Specific gravity | ASTM D792 | g/cm3 | 1.09 | 1.10 | 1.12 | 1.18 | 1.21 | 1.21 | |
| Hardness (Shore A) | ASTM D2240 | 29 | 42 | 52 | 70 | 81 | 82 | ||
| Tearing strength | ASTM D412 | MPa | 6 | 6.4 | 7.2 | 9.5 | 9.5 | 10.5 | |
| Elongation at break | ASTM D412 | % | 800 | 400 | 410 | 280 | 250 | 300 | |
| Tear strength (Crescent) | ASTM D 624 B | kN/m | 12 | 15 | 16 | 22 | 25 | 27 | |
| Rebound | GBT 1681-2009 | % | 77 | 75 | 66 | 49 | 45 | 44 | |
| Compression set 177 ºC × | ASTM D395 Method A | % | 21 | 22 | 23 | 21 | 24 | 23 | |
Q: Are you a factory or trading company?
A: We are rubber raw material manufacturer and owned 3 factories.
Q: Where is the loading port and How do you ship the goods?
A: Our factory is nearby Shanghai Port, but loading port can be negotiated. We could ship by sea, by air or by express(EMS, UPS, DHL, TNT, FEDEX and etc). Please confirm with us before placing orders.
Q: How can we guarantee the products' quality?
A: All the products must be tested refers to key specifications during the production and final inspection before shipment.
Q: What about the lead time?
A: It depends on the order quantity you place the order. Usually sample needs 5-8 working days, mass production needs 15-30 days.
