General Description
B-57 is the MASS PVC with the properties of no skin, good gelation, and high porosity.
Main Features
- The special particle structure of B-57 resin promote the additives absorption quickly and dispersion
- B-57 has low melting viscosity and is easy to process in wild range of processing
- The final products of B-57 have higher transparency and better initial color than suspension PVC resin.
- B-57 is adapted to the following processes of extrusion, injection blow molding to make rigid sheet, film, tiles and complex pipe fittings
| Parameter | Typical Value | Unit | Test Method |
| K-Value | 54.1~56.0 | – | DIN53726 |
| Degree of Polymerization | 620 ± 30 | – | JIS K6720-2 |
| Particle Size | Max. 0.01 | % | Retained on 42 mesh |
| Apparent Bulk Density | 0.60 ± 0.02 | g/c.c | JIS K6720-2 |
| Cold Plasticizer Absorption | 16 ± 1.0 | % | ASTM D-3367 |
| Volatiles | Max. 0.3 | % | JIS K6720-2 |
| VCM Residual | Max. 100 | ppm | ASTM D-3749 |
| Foreign Matter | Max. 50 | PC/100g | FPC Method |
Specification: PVC-FORMOSA-B57
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