News_Novista Chemicals - The pioneer of Flame retardant

10 2026-9
From Lead Stabilizers to Ca/Zn Stabilizers: What Should PVC Processors Pay Attention To? The move from traditional lead stabilizers to environmentally friendly Ca/Zn stabilizers is an important trend in the PVC industry.However, changing the stabilizer system is not simply a matter of replacing one product with another. In rigid PVC extrusion, such as profiles, pipes, and other hard PVC products, processors may notice some new or more sensitive processing issues.Bas…
3 2026-9
CPVC Manufacturing Lessons: Large-Diameter Pipes, Sheets, and Roof Tiles CPVC (Chlorinated PVC) is known for being tough, heat-resistant, and chemical-resistant — which is exactly why it's used for pipes, sheets, and roof tiles in demanding environments like chemical plants and electroplating workshops.But here's the catch: making large-diameter CPVC products is much harder than making standard PVC ones. The material is trickier to melt, more sensit…
3 2026-8
How to Choose the Right Lubricant Balance for PVC Foam Board Production In PVC foam board production, lubricants play a small but very important role.A wrong balance between internal and external lubricants may cause many production problems, such as yellowing, brittleness, uneven thickness, poor surface quality, and unstable foam structure.
28 2026-7
Why Do SPC Flooring Become Brittle After Long-Term Storage? A customer recently shared an interesting case with us.A batch of SPC flooring had been stored for about 14 months. When the end customer started cutting and installing the flooring, they found serious problems: edge chipping and brittle fracture during cutting.
20 2026-7
Lubricants and Plasticization in PVC Processing: How to Find the Right Balance In PVC processing, the right lubricant system and proper plasticization are two of the most important factors for producing high-quality products and maintaining stable production.Finding the right balance between internal lubricants and external lubricants can improve product appearance, processing efficiency, and overall production stability.
15 2026-7
Key Points for Converting PVC Formulations from Lead Stabilizers to Calcium-Zinc Stabilizer… As environmental regulations become stricter, more PVC manufacturers are replacing traditional lead stabilizers with calcium-zinc (Ca/Zn) stabilizers. However, many conversion projects fail during production trials.In most cases, the problem is not the quality of the Ca/Zn stabilizer. The real reason is that the original lead-based formulation is used without making the necessar…
7 2026-7
Extruder Size Matters: Why a 35mm, 65mm, and 95mm Extruder Are More Than Just Different Dia… In the plastics industry, we often hear people say:"We tested it on a 35mm extruder."
29 2026-6
Common Problems and Solutions in Producing PVC Double-Wall Corrugated Pipes and Ribbed Pipe… PVC double-wall corrugated pipes and ribbed pipes are widely used in drainage, sewerage, and infrastructure applications. However, during production, processors often encounter issues related to formulation design, plasticization, lubrication balance, and raw material quality. Below are some of the most common problems and practical solutions.