High-Performance Capstock Materials

Custom PVC Compounds & Polymer Formulations for Superior Surface Protection, Durability & Weather-Resistance

Aurora Material Solutions provides advanced capstock materials engineered for superior durability and long-term performance in outdoor and high-exposure environments. Our high-performance PVC compounds and custom polymer formulations offer exceptional resistance to UV rays, moisture, and extreme temperatures, ensuring that siding, decking, fencing, windows, doors, and other exterior products maintain their strength, color, and finish over time.

Aurora Material Solutions offers durable, high-quality ETP/PC polycarbonate for capstock

What Is Capstock? Why It Matters for Long-Term Performance

Whether you’re producing building products, automotive trim, or outdoor furniture, our materials provide the performance characteristics required to meet demanding industry standards.

Capstock is a protective outer layer applied over a core substrate material; typically PVC, wood composites, or engineered plastics; to provide enhanced durability, weather resistance, and aesthetic quality. This two-part system combines the structural strength of the substrate with the superior surface properties of the capstock layer, delivering products that perform better and last longer than single-material alternatives.

Weather & UV Protection: Capstock shields the core material from UV degradation, moisture damage, and temperature extremes that cause fading, cracking, and warping
Color Stability: High-quality capstock maintains original color and appearance for years, even under constant sun exposure
Impact & Scratch Resistance: Protects products from physical wear, dents, and abrasions during installation, use, and transportation
Cost-Effective Performance: Capstock systems extend product lifespan and reduce maintenance costs compared to solid material alternatives

Our AuroraTec™ and AuroraShield™ product lines deliver the weatherability, impact resistance, and processing efficiency manufacturers need for high-quality capstock applications.

Contact Us About Your Specific Needs For A Capstock Application!

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Industries That Rely on High-Performance Capstock Materials

Aurora Material Solutions offers Custom Compounds Designed for Elasticity, Resilience & Long-Term Performance

Capstock for Building & Construction

Building products face constant exposure to weather extremes, UV radiation, and physical wear

AuroraTec™ high-flow extrusion grade rigid PVC compounds are designed for easy processing and are highly impact resistant, available in both weatherable and non-weatherable formulations to meet various application requirements.

AuroraShield™ PVC/Acrylic alloy capstock compounds combine the easy processability of rigid PVC with the superior weatherability of acrylic, providing excellent UV and water-whitening resistance for decking, siding, fencing, windows, doors, and trim applications that must maintain appearance for decades.

Capstock for Automotive Applications

Automotive exterior components require materials that resist UV exposure, impact damage, and environmental stress while maintaining premium aesthetics

AuroraShield™ ASA (acrylonitrile styrene acrylic) provides outstanding weather resistance with excellent UV, water whitening, and stress crack resistance.

These grades exhibit low heat build-up, good flow, excellent aesthetics, impact strength, toughness, and dark color weatherability; making them ideal for exterior trims, moldings, and decorative components on vehicles and heavy trucks.

Aurora Material Solutions offers custom thermoplastics solutions for aerospace applications

Aurora Material Solutions offers Impact-Resistant & Durable Plastics for Structural Components for Aerospace Applications

Capstock for Outdoor & Industrial Products

Outdoor furniture, recreational equipment, signage, and industrial products demand capstock materials that provide longevity in extreme conditions

AuroraTec™ PVC composites offer enhanced dimensional stability with more than twice the tensile or flexural modulus of typical PVC substrates.

Combined with a lower coefficient of expansion, these composites deliver significantly less contraction or expansion due to temperature fluctuations—critical for outdoor products exposed to seasonal temperature swings and demanding industrial environments.

Enter your information below to learn more about our wide range of engineered thermoplastic compounds.

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Key Benefits of Aurora’s Capstock Solutions

Our extensive offering gives you the foundation for an engineered thermoplastic compound or polymer designed to meet your product needs:

Superior Durability & Weather Resistance

Prevents warping, cracking, and fading in extreme weather conditions
Engineered for long-term exposure to sun, moisture, and temperature extremes
Maintains structural integrity and performance throughout extended service life

UV Protection & Long-Lasting Color Stability

Advanced UV stabilization protects against sun damage in outdoor applications
Maintains original color and appearance for years without fading or discoloration
Ideal for darker colors that typically show sun damage more readily

Impact & Scratch Resistance for High-Stress Applications

Highly impact resistant compounds reduce wear and tear in high-traffic environments
Withstands physical impact, abrasions, and mechanical stress during installation and use
Reduces product damage and warranty claims while increasing customer satisfaction

Compatibility with Various Substrates & Manufacturing Processes

Seamless integration with PVC, wood composites, and engineered plastic substrates
High-flow extrusion grade compounds designed for easy processing and manufacturing efficiency
Can be used as stand-alone compounds or with structural substrates in two-part systems

How Aurora’s Capstock Materials Improve Cost Efficiency & Sustainability

Aurora’s capstock solutions deliver both economic and environmental benefits, helping manufacturers reduce costs while meeting sustainability goals. We’ve been a trusted partner for manufacturers requiring reliable, high-performance capstock compounds for more than 15 years. Our expertise in formulating materials for demanding outdoor and industrial applications sets us apart!

Extended Product Lifespan: Reduces maintenance and replacement costs by protecting core materials from degradation
Material Efficiency: AuroraShield™ PVC/Acrylic capstock can be applied thinner than standard PVC capstocks—thinner capstock requires less material, making it a high-performance economical solution
Processing Efficiency: High-flow compounds designed for easy processing reduce manufacturing time and energy consumption
Recyclable Formulations: AuroraShield™ ASA series includes recyclable and environmentally-friendly products
Regulatory Compliance: Materials designed to meet ASTM, ISO, RoHS, and LEED requirements

Industry-Leading Expertise: Professional R&D staff with decades of experience in formulating for capstock applications
Comprehensive Product Portfolio: AuroraTec™ and AuroraShield™ brands covering rigid PVC, PVC composites, PVC/Acrylic alloys, and ASA compounds
Custom Formulations: We work with you to determine the formulation that best meets your specific performance and processing needs
Processing Flexibility: Weatherable and non-weatherable formulations, pelletized compounds, powder and pellet forms available
Supply Chain Reliability: Multiple North American production facilities ensuring consistent supply for high-volume manufacturing
Commitment to Innovation: Continuous development of next-generation capstock solutions for enhanced durability, recyclability, and energy efficiency

Helpful Resources For Capstock In Manufacturing

FAQs

What is capstock and how is it different from traditional materials?

Capstock is a protective outer layer applied over a core substrate material—typically PVC, wood composites, or engineered plastics. Unlike solid materials, capstock systems combine the structural strength of the substrate with enhanced surface properties including UV resistance, color stability, and impact protection. This two-part approach delivers superior performance and longer product life compared to single-material alternatives.

What are the best plastics for capstock applications?

The best materials depend on your specific application requirements. For building products requiring maximum weatherability, AuroraShield™ PVC/Acrylic alloys combine the processability of rigid PVC with superior acrylic weatherability. For automotive and outdoor products requiring UV and stress crack resistance, AuroraShield™ ASA provides outstanding weather resistance. For applications requiring enhanced dimensional stability, AuroraTec™ PVC composites offer more than twice the tensile/flexural modulus of typical PVC substrates.

Is capstock better than solid plastic or wood composites?

Capstock systems offer several advantages over solid materials. The protective outer layer shields the core material from UV degradation, moisture damage, and temperature extremes while maintaining superior aesthetics. This results in longer product life, reduced maintenance costs, and better color retention. Additionally, capstock allows manufacturers to optimize material costs by using a premium outer layer over a more economical structural core.

How long does capstock last in outdoor environments?

High-quality capstock materials like AuroraShield™ compounds are engineered for decades of outdoor performance. Our PVC/Acrylic alloys and ASA compounds provide excellent UV and water-whitening resistance, maintaining color and structural integrity under prolonged sun exposure and weather extremes. The specific lifespan depends on the application, exposure conditions, and material formulation—our technical team can help you select materials optimized for your specific environment.

Can AuroraShield™ capstock be applied thinner than standard PVC capstocks?

Yes! AuroraShield™ PVC/Acrylic capstock compounds are highly durable and can be applied thinner than standard PVC capstocks while maintaining superior weatherability. Thinner capstock requires less material, making AuroraShield a high-performance economical solution for exterior applications. These pelletized compounds are ideal for darker colors and provide excellent UV and water-whitening resistance at reduced material usage.

Durability & Weather Resistance

What are the best weather-resistant capstock materials?

UV Stability & Color Retention

What is the best UV-resistant material for window frames?

Impact & Scratch Resistance

What are the best impact-resistant materials for industrial applications?

Manufacturing & Processing Benefits

Which capstock materials are best for extrusion processes?

Sustainability & Eco-Friendliness

Are capstock materials recyclable?

Brands & Materials

Aurora Material Solutions Capstock Brands

Aurora Material Solutions Capstock Materials

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Ready to take the next step?

Finding the right thermoplastic compound starts with understanding your unique application requirements. Aurora’s technical sales team is ready to help you identify the ideal flexible ETP or engineering plastic solution; custom formulated to your performance specifications, processing needs, and industry standards. Reach out today to start the conversation.

PARTNER WITH YOUR SALES REPRESENTATIVE TODAY!

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