ASA (Acrylonitrile Styrene Acrylate) is an amorphous thermoplastic polymer compound engineered as a weather-resistant alternative to ABS.
Key Properties
UV and Weather Resistance: Lacks the butadiene rubber component found in ABS, preventing yellowing, chalking, or embrittlement under prolonged sunlight and outdoor exposure.
Mechanical Strength: Offers high impact resistance, rigidity, tensile strength, and chemical resistance comparable to or exceeding standard ABS.
Thermal Performance: Features a higher softening or heat deflection temperature than ABS (around 102°C).
Processing: Easily shaped via injection molding, extrusion, or fused filament fabrication (3D printing).
Common Applications
Automotive: Exterior mirror housings, grilles, pillar trims, and roof rack components.
Outdoor & Industrial: Electrical housings, construction profiles, garden tools, and marine or watercraft parts.
3D Printing: Used as a durable filament for functional outdoor prototypes that require UV stability.
Alloys: Frequently combined with polycarbonate as PC/ASA Compounds to boost heat resistance and structural toughness.
Technical Advantages of Weather Resistant ASA Capping Compounds
Engineered weather resistant ASA resin replaces vulnerable double-bond butadiene rubber with an acrylic rubber backbone, forming an impermeable, color-fast protective shield over the underlying WPC core:
Long-Term Color Stability ($\Delta E < 1.0$): Retains vibrant, original timber shades under intense solar radiation without fading, chalking, or yellowing, eliminating the need for periodic staining, painting, or sealers.
Impermeable Moisture and Chemical Barrier: Seals internal wood-plastic cores completely, resisting water absorption, freeze-thaw cracking, marine salt fog, and chemical deck cleaners.
High Scratch and Abrasion Resistance: Superior surface hardness prevents deep scratches and scuffs from heavy foot traffic, outdoor furniture, and garden tools.
Smooth Co-Extrusion Rheology: Melt Flow Index (MFI) and melt strength are tailored specifically for high-speed WPC co-extrusion cross-heads, preventing pinholes, layer delamination, and edge tearing.
RoHS and REACH Environmental Compliance: Fully compliant with European environmental regulations, discharging zero hazardous heavy metals or toxic plasticizers.
Broad Applications and Color Customization
Our modified weather resistant ASA resin is widely deployed across diverse architectural and landscape projects:
Outdoor Landscapes: Courtyard patio decking, park boardwalks, swimming pool perimeters, and waterfront docks.
Exterior Architecture: Co-extruded wall cladding, pergola shade louvers, garden fencing, and outdoor furniture slats.
Building Components: Synthetic resin roof tiles, rain gutters, and window profile capping layers.
Alongside specialized weatherable ASA compounds, we manufacture prime general-purpose engineering resins including Chimei ABS PA-757Q for high-gloss, low-odor equipment covers and consumer product housings.
Partner with Qingdao Zhongxin Huamei Plastic Co., Ltd.
Selecting a certified polymer source factory requires verifying raw material compounding precision, automated color consistency, and batch-to-batch physical property stability. Established in May 1997 as an official joint venture enterprise backed by CHIMEI Corporation, Qingdao Zhongxin Huamei Plastic Co., Ltd.is a certified National High-Tech Enterprise with 30 years of custom compounding expertise.
Operating across a 45,000 m² modern manufacturing facility equipped with 30 German Coperion twin-screw granulating lines, over 100 sets of advanced testing instruments, and an annual capacity exceeding 100,000 tons, our factory utilizes an automated digital MES process management system to ensure zero-defect batch consistency.
Contact our technical engineering team under FOB or EXW shipping terms to request technical datasheets, obtain pre-colored co-extrusion evaluation samples, and place trial batch orders.
