Thiol methyltin stabilizer

Methyltin mercaptan: Highly transparent, food-grade, non-toxic, highly heat-resistant, non-yellowing, compatible and non-leaching; the preferred stabilizer for mid-to-high-end rigid PVC/CPVC products.

• Appearance: Clear, transparent, viscous liquid

• Core Identity: Preferred heat stabilizer for mid-to-high-end rigid PVC, lead-free and environmentally friendly

• Composition: Mixture of monomethyltin mercaptan and dimethyltin mercaptan (common ratio 20:80)

✅ 1. Top-Tier Heat Stability (Strongest Core Feature)

• Inhibits PVC high-temperature deHCl degradation, resists yellowing, black spots, and caking.

• Excellent initial whiteness, long-term heat stability, wide processing window, suitable for high-shear/high-temperature extrusion/injection molding

• Preferred stabilizer for rigid PVC (pipes/profiles/transparent parts), lead-free system offers optimal performance.

✅ 2. Top-Tier Transparency (Essential for High Transparency)

• Products are highly transparent, crystal clear, and do not whiten, comparable to glass.

• Suitable for transparent bottles, food packaging, medical-grade PVC, and transparent sheets/plates.

✅ 3. Non-Toxic and Environmentally Friendly (Food-Grade Certification)

• Lead-free and cadmium-free, low migration, certified by the US FDA and German BGA.

• Suitable for drinking water pipes, food contact packaging, and pharmaceutical-grade products, ensuring safety and compliance.

✅ 4. Excellent compatibility (no precipitation, no blooming)

• Completely compatible with PVC, easily dispersed, and does not migrate, precipitate, or bloom with long-term use.

• Does not affect the surface gloss or electrical properties of the product, suitable for high-end appearance parts.

✅ 5. High processing efficiency (cost reduction and efficiency improvement)

• Low addition amount (1.0–1.5 PHR), high stability and efficiency.

• Good flowability, easy extrusion/injection molding, no bubbles, no black spots, low scrap rate.

• Compatible with various formulations such as CPVC, rigid PVC, and transparent PVC.

✅ 6. Weather and aging resistance (durable for outdoor use)

• Improves the product's resistance to UV rays, aging, and yellowing; does not chalk with long-term outdoor use.

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