About Acrylic Processing Aid PA-551
Acrylic Processing Aid PA-551 is a high-performance additive engineered for rigid and semi-rigid PVC formulations. It optimizes melt rheology, promotes uniform fusion, and eliminates surface defects.
Accelerate fusion rate, increase productivity and decrease processing temperature.
Excellent clarity and surface quality for end-use products, superior fusion promotion for rigid and soft PVC.
PA-551 is widely used in the processing of many rigid and flexible PVC products made by blow molding, calendering, extrusion and injection molding.
Physicochemical Properties
Index/Product Name | PA-551 |
Appearance | White free-flowing powder |
Particle size 40 mesh(%) |  99
|
volatiles(%) |  1.0
|
Viscosity () (Ubbelohde Viscometer) | 2.0-3.0 |
Application
Acrylic processing aid PA-551 can be applied to PVC transparent products, PVC film,bottles, PVC fittings, PVC profiles, PVC sheets, PVC pipes and other blow molding products.
Enhance PVC Processing EfficiencyAcrylic Processing Aid PA-551 is expertly engineered to facilitate the fusion and processing of PVC compounds. Its consistent particle size and purity contribute to better dispersion in the PVC matrix, leading to smoother processing and uniform product quality. By incorporating this aid, manufacturers can achieve higher productivity and improved product surface characteristics.
Superior Quality and ReliabilityManufactured with a stringent quality control process in China, PA-551 meets industrial standards for purity and performance. Its stable physical form and minimal volatility ensure safe handling and predictable behavior in different PVC processing conditions. The powder flows freely, simplifying dosing in both automated and manual product setups.
FAQ's of Acrylic Processing Aid PA-551:
Q: How should Acrylic Processing Aid PA-551 be stored to maintain its quality?
A: Store PA-551 in a cool, dry place away from moisture and direct sunlight to preserve its free-flowing powder characteristics and extend its shelf life to 12 months.
Q: What benefits does PA-551 provide in PVC processing applications?
A: PA-551 improves melt strength, fusion, and overall processability of PVC, leading to smoother surfaces, reduced defects, and enhanced productivity in the finished products.
Q: When is it recommended to use PA-551 in the PVC production process?
A: PA-551 should be added during the compound mixing stage to ensure uniform dispersion, which allows optimal processing performance throughout extrusion or molding.
Q: Where does the manufacturing and supply of PA-551 originate?
A: Acrylic Processing Aid PA-551 is produced, distributed, and exported from China, with availability from manufacturers, suppliers, exporters, and wholesalers.
Q: What is the process for incorporating PA-551 into a PVC formulation?
A: PA-551 is typically blended with PVC resin and other additives during the dry-mixing process. Ensure that the powder is evenly distributed for consistent processing benefits.
Q: What is the physical appearance of PA-551 and why is it important?
A: PA-551 is a white, free-flowing powder, which allows for easy mixing and precise dosing in industrial processing, minimizing waste and ensuring reliability during production.
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