Compare the job each additive does in PVC and rubber processing, then check the exact factory grade against your formulation.
A PVC formulation balances impact performance, fusion and melt strength, thermal stability, lubrication and, for foam products, gas generation. A change in one ingredient can affect another part of the process. Use this guide to frame the enquiry, then confirm the actual grade against its factory TDS and your production trial.
Each family addresses a different formulation or processing problem.
Impact modifiers are selected to improve toughness in the finished PVC article. CPE, acrylic, ACM and ASA-based options are different material families; their suitability depends on the resin, outdoor exposure, processing method and impact target.
Tell us the finished product, impact test or service temperature, resin grade, current modifier and weathering requirement.
Processing aids are considered when a PVC compound needs better fusion control, melt strength, surface finish or metal release. They do a different job from impact modifiers, even when both are used in the same formulation.
Share the extrusion or calendering process, current resin and additives, output rate, fusion behaviour and surface defects.
A foam regulator helps the PVC melt support and control the developing cells. A chemical blowing agent releases gas during processing. The two functions must be assessed together against the temperature profile, target density and cell structure.
Give us the foam process, equipment, temperature profile, target density, board or profile thickness and current blowing agent.
PVC requires an appropriate stabilization system during thermal processing. Calcium-based systems, including Ca-Zn, are used in a range of pipes, profiles and other products. Suitability depends on the whole formulation and any market-specific requirements.
Specify the end product, resin, process temperature, color target, service conditions and any required standard or compliance document.
Wax selection influences friction at the melt-metal interface, fusion timing and the appearance of the extrudate. PE wax, oxidized PE wax and Fischer-Tropsch wax are not interchangeable without formulation trials.
Send the current wax type, process, fusion or sticking issue, surface target and any required drop point, viscosity or acid-value range.
CPE elastomer and powder nitrile rubber are considered for different rubber or PVC blend systems. The target property, polymer compatibility and curing route should be checked before choosing a grade.
Tell us the base polymer, mixing and cure process, target physical properties and any existing grade used for comparison.
The more precise the enquiry, the more useful the grade recommendation and quotation.
No. An impact modifier is selected mainly for toughness in the finished article. A processing aid is selected for melt and processing behaviour, such as fusion or surface quality. Some grades have overlapping effects, so compare their factory data sheets in the actual formulation.
No. The regulator supports melt strength and cell control; the blowing agent provides gas during heating. Grade selection depends on the process temperature and target foam structure.
A product name alone is not enough. Resin grade, stabilizer and lubricant balance, equipment, temperature profile and final performance targets all affect the choice.
Request the current technical data sheet and safety data sheet for the exact grade. Discuss the certificate of analysis or agreed batch test values, packing and inspection terms before confirming an order.
No. Published values for another company’s grade are useful for understanding the category, but are not specifications or dosage instructions for the material offered here. Confirm values with the producing factory and validate them in your process.
This guide explains general additive functions. Performance and compliance for a Shuoyang Kunhe material depend on the exact grade, factory documents and customer trials.
Include the end product, processing method, current material grade, target result, quantity and destination.