Nylon PA 6 (TP-1) RV 2.7 above, (suitable for extrusion and injection)
Nylon PA 6 (TR-1) RV 2.7 (suitable for Film and injection grade)
Nylon PA 6 (Black) RV 2.7 above (suitable for extrusion and injection)
Nylon PA 6 (BRI) RV 2.7 above, high Temperature (suitable for extrusion and injection)
Nylon PA 6 (Off Grade) RV 2.7 - 2.9
Nylon PA 66 (FSD) - (suitable for Extrusion grade)
Nylon PA 66 (Black) - (suitable for Injection grade)
PBT WHITE (esp for extrusion but also can for injection too)
PBT WLACK (esp for extrusion but also can be for injection too)
HIPS WHITE
LDPE NATURAL
PP Natural (Film grade)
PP COPO BLACK, (Extrusion or Injection grade)
PLA Natural
HEPES (4-hydroxyethyl piperazine ethanesulfonic acid) is a kind of hydrogen ion buffer with pH value ranging from 6.8 to 8.2. In the process of cell culture, we often need HEPES buffer. It is a kind of weak acid. In the open culture condition, if HEPES is added, it can prevent the increase of pH oxidation in the culture medium and maintain the pH at about 7.0. The final concentration of HEPES buffer was 10-50 mmol / L, which had no toxic effect on cells. Generally, 20 mmol / L HEPES can achieve buffering capacity. Since we often use it in cell culture medium, what are its advantages in cell culture medium? Most of the cells need pH 7.2-7.4, but the optimal pH for cell culture varies with different cell types. Fibroblasts prefer higher pH (7.4-7.7), while the subculture and transformation cell lines need acid pH (7.0-7.4). HEPES is a kind of nonionic amphoteric buffer, which has good buffer capacity in the range of pH 7.2-7.4. The advantage of this method is that it can maintain a relatively constant pH value in open culture or cell observation. Under this condition, the cover of the cell culture bottle should be tightened to prevent a small amount of carbonate needed in the culture medium from scattering into the air. HEPES produced by Desheng is white crystal powder, with main content of 99.50%, iron ion 5ppm, sulfate 0.05%, and heavy metal residue (PB) 10ppm. Can provide trial sample powder, self-made solution for testing.
As per Buyer Specification and packing
Post-industrial colored PET flakes $0.25/lbs picked up minimum load of 44lbs
Black LDPE Repro. 4 loads per month available
Shredded PVC foam lumps, it comes in bigbags, mixed color. We have stock available for shipping now.
Carbomer is the is a polyvinyl carboxy polymer used as a viscosity enhancer, gelling agent, or suspension agent. Recently it is primarily used for the production of Hand Sanitizers. The product is porduced by a global manufacturer among the biggest in the world and has all the certification required for the use in Europe, the USA and all over the world. MOQ is 500kg and production lead time is 45 days. FOB Basis is Shenzhen or Guangzhou, China.
