1. High-Performance Fusion Promoter | PVC Processing Aid ACR-401 Product Overview
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📝 Product Overview

PVC Processing Aid ACR-401 is a high-performance acrylic copolymer designed to significantly enhance the processing window of polyvinyl chloride (PVC) formulations. It acts as a fusion promoter, accelerating the gelation of PVC resin while improving melt strength and elasticity.

By forming a network structure within the PVC melt, ACR-401 ensures a more homogeneous fusion, which leads to superior physical properties and a flawless surface finish. It is the industry standard for achieving high-speed extrusion and injection molding without compromising the structural integrity of the final product.

🔬 Key Specifications

• Appearance：White flowing powder
• Bulk Density (g/cm³)：0.40 - 0.55
• Sieve Residue (30 Mesh)：≤2.0%
• Volatile Matter (%)：≤1.2%
• Intrinsic Viscosity (η)：2.0 - 4.0 (Customizable for fusion speed)
• Molecular Weight：High molecular weight for enhanced melt elasticity
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🚀 Application Areas

ACR-401 is essential for nearly all rigid and semi-rigid PVC applications where surface quality and processing efficiency are critical.

1.PVC Pipes & Fittings:ACR-401 promotes rapid fusion at lower temperatures, reducing energy consumption. It improves the wall thickness uniformity and impact strength of U-PVC pressure pipes and drainage systems. Recommended dosage: 1.0 - 2.5 phr (parts per hundred resin).

2. Window Profiles & Doors: Used to achieve an ultra-smooth, high-gloss surface. It enhances the "corner strength" of welded window frames and ensures the profile maintains precise dimensions during the cooling phase of extrusion.

3. PVC Sheets & Foam Boards: In foaming applications (such as WPC or PVC foam boards), ACR-401 increases melt strength to prevent cell collapse. This results in a uniform cellular structure, lower density, and a harder surface skin.

4. Wood-Plastic Composites (WPC):It improves the dispersion of wood flour and other fillers within the PVC matrix, ensuring that the composite material has consistent mechanical properties and resistance to moisture.

5.Transparent PVC Products: Because of its excellent compatibility with PVC resin, ACR-401 can be used in transparent sheets and films to eliminate "fish eyes" and improve optical clarity by ensuring complete fusion of the resin particles.

6. Injection Molded Components: Reduces the risk of flow marks and "silver streaks" in injection molded fittings. It provides a wider processing window, allowing for more complex mold designs and faster cycle times.

📦 Packaging and Storage

• Packaging: Typically supplied in 25 kg multi-layer paper bags or PP woven bags with a PE inner liner.
• Storage: Store in a cool, dry, and well-ventilated warehouse. Avoid direct sunlight and moisture. Shelf life is 12 months under proper storage conditions.
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Meta Description: "Enhance your PVC processing with ACR-401 Processing Aid. A high-performance acrylic fusion promoter that improves melt strength, surface gloss, and extrusion speed for pipes, profiles, and foam boards."

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