| Appearance | White powder |
| Packaging | 25kg PP bag (PE liner). |
| Category | PVC PROCESSING AID |
SH-21 is a high-performance acrylic processing aid engineered for transparent PVC systems. It accelerates gelation, optimizes melt flow, and delivers superior surface gloss—ideal for producing clear, defect-free rigid PVC articles.
| SPECIFICATION | UNIT | TEST STANDARD | SH-21 |
| Appearance | -- | White powder | White powder |
| Bulk density | g/cm3 | ASTM D1895-24 | 0.45±0.10 |
| Sieve residue (40 mesh) | -- | GB/T 2916 | ≤2.0 |
| Volatile content | % | ASTM D5668 | ≤1.5 |
| Intrinsic visosity (η) | % | GB/T 16321.1-2008 | 2.5±0.5 |
Transparent PVC sheets & films (packaging, window, decorative)
Rigid transparent PVC profiles, pipes, injection parts
Food-contact transparent PVC articles
25kg PP bag (PE liner).
Store in dry, ventilated warehouse; keep sealed, avoid moisture & direct sunlight
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alice-Sohua Chem
