ASA or AAS Acrylonitrile Styrene Acrylic Rubber

High flow, general purpose and heat resistant grades. Usually unfilled. 

Crystal clear, hard and glossy Insensitive to moisture (0.04% absorbed) and resistant to salt solutions ease of processing low shrinkage excellent electrical properties ultrasonic welding, solvent and adhesive bonding are all possible resistant to dilute alkalis, acids, salts and fats. 

Brittle low thermal capabilities prone to stress cracking and crazing attacked by oxidising acids, oils, esters, higher alcohols, aromatics, chlorinated hydrocarbons and ketones unsuitable for outside use due to weathering combustible. 

Commodity Applications Food packaging, refrigerator parts, trays, boxes, cosmetic containers, toys, kitchenware, tape cassettes, disposable tumblers. 

Grade Selection Criteria Melt flow characteristics for injection moulding, extrusion and co-extrusion. UV stabilizer addition. Food contact approval. 

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