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ASA (Acrylonitrile Styrene Acrylate Copolymer)

What is ASA (Acrylonitrile Styrene Acrylate Copolymer)?

ASA is an abbreviation for Acrylonitrile Styrene Acrylate Copolymer, is structurally very similar to ABS. The spherical particles of slightly crosslinked acrylate rubber (instead of butadiene rubber), functioning as an impact modifier, are chemically grafted with styrene-acrylonitrile copolymer chains, and embedded in styrene-acrylonitrile matrix. The acrylate rubber differs from the butadiene based rubber by absence of double bonds, which gives the material about ten times the weathering resistance and resistance to ultraviolet radiation of ABS, higher long-term heat resistance, and better chemical resistance. ASA is significantly more resistant to environmental stress cracking than ABS, especially to alcohols and many cleaning agents.

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UNINKO Modified ASA compounds series includes general purpose grade, flame retardant grade, reinforced grade, heat resistant grade, alloys grade, etc broad range, with excellent performances, and widely used in outdoor roof shells, outdoor telecommunication equipments, signal lights, outdoor detectors, home appliances, automobile industries, etc

UNINKO Typical Grades and its Applications:

Typical GradeMaterial DiscriptionKey Features & CharacteristicsApplications
UGP230General Purpose ASA 

General purpose, good flow, high impact

Home appliances, outdoor dectors, signal lights, etc

UGP23HRHeat resistant ASA

Heat resistant, weather resistance, good flow, high impact

Cooling grille and bumper, Skylight, rearview mirror, Luggage rack, rear license plaque, column trim,fog lights, taillight, etc

UGP23FR0Flame retardant ASA

Flame retardant, UL94 V0, Heat resistant, weather resistant, 

Satellite antenna boxes, air conditioner components, car sunroof, electrical control boxes, etc


30% glass fiber reinforced, weather resistant, high stiffness

Automotive components, antenna boxes, photographic instruments, etc


30% glass fiber reinforced, UV Resistant, Heat Stabilized, good chemical resistant, low warpage, matt surface, good flow

Automobile Demisting grille, Fog lights, Auto interior parts, etc


30% glass fiber reinforced, flame retardant, UL94 V0, good flow, dimention stability, weather resistant

Automobile injection parts, electrical & electronic components, etc

*If any above grades or other specific grades interested, contact our technical & sales personnel now for Technical Data Sheets(TDS) Material Safety Data Sheets(MSDS) and FREE samples!
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