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The outdoor material. ASA (Acrylonitrile Styrene Acrylate) is engineered from the ground up for UV exposure, rain, salt spray, and temperature extremes. Where ABS yellows and cracks outdoors, ASA maintains its color, gloss, and mechanical properties for over a decade. No painting, no coatings, no compromise.
10+
Years Outdoor Durability
1.5–8mm
Sheet Thickness Range
90°C
Max Service Temperature
In-House
Extrusion from Pellets
Why Choose ASA
ASA replaces the butadiene rubber in ABS with acrylic rubber — a single molecular change that transforms a great indoor material into the definitive outdoor thermoplastic.
ASA is engineered specifically for outdoor exposure. Unlike ABS which yellows and degrades under UV light, ASA uses acrylic rubber instead of butadiene — giving it inherent UV stability that lasts 10+ years without protective coatings or paint.
Rain, humidity, salt spray, temperature cycling from -40°C to +90°C — ASA handles it all. It maintains mechanical properties, color, and surface gloss through years of outdoor exposure that would destroy most other thermoplastics.
ASA is colored throughout the material — not just on the surface. Scratches and scuffs don't reveal a different color underneath. This eliminates the need for painting, reducing cost and eliminating paint adhesion failures.
ASA delivers impact resistance comparable to ABS — parts won't crack, chip, or shatter under mechanical stress. Combined with UV stability, this makes ASA the material when outdoor parts need to survive both weather and abuse.
ASA FR grades achieve UL 94 V-0 while maintaining UV stability — a combination few materials can match. Critical for outdoor electrical enclosures, telecom cabinets, and solar equipment that must meet fire safety codes.
All ASA production scrap is re-ground and re-extruded in our facility. The recycled material maintains its UV resistance and mechanical properties, making ASA one of the most sustainable choices for outdoor applications.
ASA Grade Selection
We extrude all ASA grades in-house from pellets — including ASA/ABS co-extruded sheets that give you UV protection on the exposed face with ABS cost savings on the back.
| Grade | Key Properties | Applications | Max Temp | Thickness |
|---|---|---|---|---|
| ASA General Purpose | Excellent UV resistance, high gloss, good impact strength, color stability | Outdoor enclosures, vehicle exterior panels, garden equipment, signage | Up to 90°C | 1.5–8mm |
| ASA High-Impact | Enhanced impact resistance at low temperatures, superior weatherability | Automotive body panels, wind energy components, heavy equipment housings | Up to 90°C | 2–8mm |
| ASA/ABS Co-extruded | ASA UV-stable cap layer over ABS substrate, combines weatherability with cost savings | Vehicle panels, outdoor kiosks, equipment covers needing UV protection on one side | Up to 85°C | 2–8mm |
| ASA FR (Flame Retardant) | UL 94 V-0 rated, UV stable, self-extinguishing, low smoke | Outdoor electrical enclosures, telecom cabinets, solar equipment housings | Up to 85°C | 2–6mm |
| ASA Textured / Matte | Low-gloss matte finish, hides surface imperfections, scratch resistant | Commercial vehicle panels, agricultural equipment, industrial covers | Up to 90°C | 2–8mm |
ASA Applications
From wind turbine nacelle covers to commercial vehicle body panels — ASA is the material of choice when parts live outdoors and need to look good for years.
Nacelle covers, blade root fairings, hub covers, and cable duct housings. ASA withstands decades of UV exposure, rain, salt spray, and temperature cycling without degradation or color change.
Body panels, fenders, bumpers, mirror housings, and exterior trim for trucks, buses, and specialty vehicles. ASA delivers color-through finish that never needs repainting — even after years of outdoor exposure.
Telecom cabinets, EV charging station housings, solar inverter covers, and outdoor kiosks. ASA maintains structural integrity and appearance in extreme UV, rain, and temperature conditions.
Tractor panels, sprayer covers, lawnmower housings, and irrigation equipment guards. ASA resists UV degradation, chemical exposure from fertilizers and pesticides, and impact from field debris.
Mirror housings, roof spoilers, grille surrounds, and exterior trim. ASA is the material of choice for unpainted exterior automotive parts — the color is molded through, eliminating paint shops entirely.
Channel letters, illuminated signs, outdoor display housings, and architectural cladding. ASA maintains color vibrancy and gloss for years without yellowing, chalking, or cracking.
Outdoor-rated fuselage shells and ground station enclosures for agricultural, survey, and delivery drones. ASA's UV stability means drone airframes maintain structural integrity and appearance through years of outdoor operation.
Material Comparison
ASA and ABS are molecular cousins — same styrene-acrylonitrile backbone, different rubber modifier. That single difference changes everything for outdoor applications.
| Property | ASA | ABS | Advantage |
|---|---|---|---|
| UV Resistance | Excellent (10+ years outdoor) | Poor (yellows in months) | ASA |
| Impact Resistance | Excellent | Excellent | Equal |
| Weatherability | Outstanding (rain, salt, temp cycling) | Poor (degrades outdoors) | ASA |
| Surface Finish | High gloss, color-through | High gloss, paintable | ASA (no paint needed) |
| Heat Resistance | Up to 90°C | Up to 80°C | ASA |
| Chemical Resistance | Good | Good | Equal |
| Material Cost | Moderate-High | Moderate | ABS |
| Best For | Outdoor, unpainted parts | Indoor, painted parts | Application dependent |
The simple rule: if your part lives outdoors and you don't want to paint it, choose ASA. If your part lives indoors or will be painted, ABS gives you the same performance at lower cost. Not sure? Ask Nirmal — he's helped hundreds of engineers make this exact decision.
Smart Engineering
Not every surface of your part faces the sun. Our in-house co-extrusion capability lets us put a thin ASA cap layer on the UV-exposed face while using cost-effective ABS for the substrate. You get full outdoor durability on the outside and ABS cost savings on the inside — the best of both materials in a single sheet.
We extrude ASA/ABS co-extruded sheets from pellets on our own lines. Custom cap layer thickness, colors, and formulations available.
ASA/ABS co-extruded sheets cost 20-30% less than solid ASA while delivering identical outdoor performance on the exposed surface.
From raw ASA and ABS pellets to finished, trimmed, assembled parts — all under one roof. No supply chain complexity.
Serving USA, Europe, Middle East, and India. Export documentation and freight coordination handled by our logistics team.
Related Resources
Send us your drawings or 3D models. We'll recommend the right ASA grade, evaluate ASA/ABS co-extrusion options, provide a DFM review, and quote your project — typically within 48 hours.