PVC Resin Insights
Grade selection, sourcing and quality checks — written for buyers who have to sign off on a specification, not for search engines. No fluff, no sales copy.
Sourcing
Carbide-Based vs Ethylene-Based PVC Resin: What Actually Differs
Both routes meet the same GB/T grade and carry the same K-value — but they are not interchangeable in every formulation. Here is what differs and how to pick.
2026-09-24 · 5 min read Grade selectionPVC Resin Grades Explained: SG-5 vs SG-3 vs SG-7 vs SG-8
What the K-value and degree of polymerization actually tell you, with the GB/T 5761-2018 grade chart and the end product each grade is bought for.
2026-09-24 · 6 min readNot sure which grade your line needs?
Send us the end product, the processing method and the target market. We will tell you the grade and the key COA items to insist on.