PVC Processing Aid ACR-401

Product Overview

ACR-401 is a high-molecular-weight, high-performance acrylic-based processing aid specifically designed for rigid and semi-rigid PVC formulations. It is engineered to significantly improve the processing characteristics of PVC, particularly in high-filler-loading applications. By promoting faster and more uniform fusion, enhancing melt strength, and improving surface finish, ACR-401 enables manufacturers to achieve higher production speeds, better dimensional stability, and superior product quality in extrusion, calendering, and other processing methods.

Key Specifications

Core Features & Benefits

1. ‌Promotes Rapid & Uniform Fusion‌: ACR-401 acts as a "fusion promoter," significantly reducing the time and energy required for PVC particles to fuse into a homogeneous melt. This leads to faster processing cycles, lower energy consumption, and a more consistent melt, which is crucial for complex profiles and high-speed extrusion lines.

2. ‌Enhances Melt Strength & Elasticity‌: It builds a robust physical network within the PVC melt, dramatically increasing its strength and elasticity. This prevents sagging, tearing, or distortion during processing—especially critical for large-diameter pipes, thick-walled profiles, and foamed PVC products where maintaining shape is essential.

3. ‌Improves Surface Quality & Gloss‌: By ensuring a smooth, homogeneous melt flow, ACR-401 effectively eliminates surface defects such as sharkskin, melt fracture, and die lines. This results in a superior, high-gloss surface finish on the final product, reducing or eliminating the need for secondary finishing operations.

4. ‌Enables High Filler Loading‌: Its excellent compatibility allows for the incorporation of higher levels of fillers (like calcium carbonate) without sacrificing processability or mechanical properties. This helps optimize formulation costs while maintaining product performance.

5. ‌Broad Processing Adaptability‌: Suitable for a wide range of PVC processing techniques, including single/twin-screw extrusion, calendering, and injection molding. It performs consistently across different equipment and processing conditions.

Typical Applications

· ‌PVC Pipes & Fittings‌: Pressure pipes, drainage pipes, conduit, and pipe fittings.

· ‌PVC Profiles‌: Window and door frames, siding, decking, and other architectural profiles.

· ‌PVC Sheets & Panels‌: Rigid sheets for construction, signage, and decorative applications.

· ‌PVC Foam Products‌: Foam core pipes, profiles, and boards (WPC/PVC foam board).

· ‌Other High-Filler Rigid PVC Products‌.

Recommended Dosage

The typical addition level ranges from ‌1.0 to 3.0 phr‌ (parts per hundred resin).

· ‌General-purpose rigid PVC extrusion (pipes, profiles)‌: 1.5 - 2.5 phr

· ‌High-filler formulations or foamed PVC‌: 2.0 - 3.0 phr

· ‌Calendering or injection molding‌: 1.0 - 2.0 phr
‌Note‌: The optimal dosage should be determined through trials based on the specific PVC resin, filler content, and processing conditions.

Packaging & Storage

· ‌Packaging‌: 25 kg net weight per multi-layer kraft paper bag with inner polyethylene liner.12.5-13tons/20‘GP

· ‌Storage‌: Store in a cool, dry, well-ventilated area. Keep away from moisture, heat, and direct sunlight.

· ‌Shelf Life‌: 24 months from the date of manufacture when stored under recommended conditions.

Safety & Handling

· ‌General Handling‌: ACR-401 is a non-hazardous material under normal conditions of use. As with any fine powder, avoid creating dust. Use with adequate ventilation. Standard personal protective equipment (PPE) such as dust masks and safety glasses is recommended.

· ‌Regulatory‌: This product is not classified as dangerous goods for transport. For detailed safety information, please refer to the product Safety Data Sheet (SDS).