PVC Window & Door Profile Stabilizer

Heat stability, whiteness, and gloss are the three key factors determining the quality of PVC window and door profiles. Sepeed Polymer Afza stabilizers are designed for heavy extrusion lines, ensuring long-term heat stability and smooth processing. These products are available in two main systems:

Lead-Based Stabilizers

An economical and highly durable system widely used in traditional profile production. It provides excellent resistance against heat and color change and is suitable for standard PVC profiles.

Calcium–Zinc Stabilizers

A new generation of environmentally friendly, lead-free stabilizers. With precise control of the melting process and preservation of white color, they are an ideal choice for producing export profiles and high-quality products.

Advantages

Excellent color and surface stability during processing and use

Prevents yellowing, burning, and mechanical degradation

Smooth and controlled processing in extruders

Compatibility with a variety of filler formulas and different production speeds