▎Products Description
PVC Capstock Compound
UV-resistant capstock for outdoor profiles (3000+ hrs tested). Anti-whitening tech. Request samples!
UV-resistant capstock for outdoor profiles (3000+ hrs tested). Anti-whitening tech. Request samples!
Previous: PVC Compound for Building Trim
★ Premium Capstock Compound Supplier ★
30+ Years PVC Modification Technology · ISO Certified Manufacturer
Export to 120+ Countries Worldwide · SGS, Intertek, Bureau Veritas Verified
Product Overview
Small BossSmallBoss PVC Capstock Compound is a specially engineered rigid PVC formulation designed for the outer protective layer in co-extruded exterior profiles. Applied as a thin, durable cap over structural substrates, it provides superior UV resistance, long-term color stability, and surface protection against scratching, staining, and weathering.
Compatible with both PVC and WPC (wood-plastic composite) substrates, our capstock compound ensures strong interlayer adhesion during the co-extrusion process, eliminating delamination risks. The formulation delivers exceptional whitening resistance even in dark colors, making it the ideal choice for premium outdoor building products that demand decades of service life.
· Specification
Small Boss| Parameter | Value |
|---|---|
| Density | 1.35–1.45 g/cm³ |
| Hardness (Shore D) | 75–85D |
| Tensile Strength | 35–50 MPa |
| Elongation at Break | 20–50% |
| Flexural Strength | 55–75 MPa |
| Flexural Modulus | 2200–3000 MPa |
| Izod Impact (Notched, 23°C) | 40–80 J/m |
| Vicat Softening Point | 75–85°C |
| Heat Deflection Temperature | 65–75°C |
| Coefficient of Linear Expansion | ≤7.9×10⁻⁵ mm/mm·°C |
| UV Weathering (3000h, Color Change) | ΔE ≤3.0 |
| Scratch Resistance | ≥3B |
| Capstock-Substrate Bond | No Delamination |
| Moisture Whitening Resistance | No Visible Change |
| Processing Temperature (Co-extrusion) | 175–195°C |
· Advantage
Small Boss🔶UV Fading and Surface Chalking in Outdoor Profiles
High-weatherability capstock retains color and surface integrity after 3000+ hours of accelerated UV exposure, meeting ASTM F964 weathering requirements for exterior applications.
🔶Cap Layer Delamination During Service Life
Optimized rheology and substrate compatibility ensure strong, uniform interlayer bonding during co-extrusion, eliminating peeling and separation risks over the product lifetime.
🔶Surface Scratching and Staining in High-Traffic Areas
Scratch-resistant and stain-resistant formulation maintains surface quality under foot traffic and exposure to food, beverages, and outdoor chemicals.
🔶Moisture Whitening in Dark-Color Capstock
Advanced anti-whitening technology ensures dark-color profiles maintain their appearance without the cloudy surface discoloration common in conventional PVC capstocks.
🔶Proven Quality Control
Every batch undergoes rigorous QC testing including mechanical properties, dimensional stability, and color consistency. Our ISO-certified lab ensures compound performance matches specifications batch after batch.
· Application
Small Boss🔶Decking & Railing
Capped composite and vinyl decking with superior surface durability, UV resistance, and wood-grain aesthetics for residential and commercial outdoor spaces.
🔶Vinyl Fencing
Co-extruded PVC fence profiles with a weatherable cap layer that resists fading, chalking, and surface damage in all climate zones.
🔶Siding & Cladding
Exterior wall cladding profiles featuring long-term color stability, moisture whitening resistance, and customizable gloss levels for architectural appeal.
🔶Window & Door Profiles
Premium capstock for PVC window and door systems, providing UV protection, color retention, and consistent appearance across extended service lives.
🔶Specialty Profiles
Custom extruded profiles for specialized applications in industrial and commercial settings.
🔶Custom Formulations
Tailored compounds developed to meet specific customer requirements for hardness, color, and processing characteristics.
Decking & Railing
Siding & Cladding
Specialty Profiles
· Why Choose Us
Small BossTongxiang Small Boss Special Plastic Products Co., Ltd. has over 30 years of experience in PVC compounding technology. Our dedicated capstock production lines and in-house quality control laboratory ensure consistent performance, color matching, and processing reliability for every batch.
We work closely with profile extrusion manufacturers to customize capstock formulations for specific substrate compatibility, color targets, gloss levels, and regional weathering requirements.
As an ISO-certified manufacturer, we maintain rigorous quality control systems. Our products are tested and verified by international third-party laboratories including SGS, Intertek, and Bureau Veritas.
30+
Years of PVC Compounding Experience
120+
Extrusion Production Lines
72,000
Tons Annual Capacity
100+
Countries Exported
Ready to Upgrade Your Capstock Compound Supply Chain?
Get Free Samples & Technical Consultation
Email: zt02@smallboss.com | Website: www.ztsmallboss.com
★ Premium Capstock Compound Supplier ★
30+ Years PVC Modification Technology · ISO Certified Manufacturer
Export to 120+ Countries Worldwide · SGS, Intertek, Bureau Veritas Verified
Product Overview
Small BossSmallBoss PVC Capstock Compound is a specially engineered rigid PVC formulation designed for the outer protective layer in co-extruded exterior profiles. Applied as a thin, durable cap over structural substrates, it provides superior UV resistance, long-term color stability, and surface protection against scratching, staining, and weathering.
Compatible with both PVC and WPC (wood-plastic composite) substrates, our capstock compound ensures strong interlayer adhesion during the co-extrusion process, eliminating delamination risks. The formulation delivers exceptional whitening resistance even in dark colors, making it the ideal choice for premium outdoor building products that demand decades of service life.
· Specification
Small Boss| Parameter | Value |
|---|---|
| Density | 1.35–1.45 g/cm³ |
| Hardness (Shore D) | 75–85D |
| Tensile Strength | 35–50 MPa |
| Elongation at Break | 20–50% |
| Flexural Strength | 55–75 MPa |
| Flexural Modulus | 2200–3000 MPa |
| Izod Impact (Notched, 23°C) | 40–80 J/m |
| Vicat Softening Point | 75–85°C |
| Heat Deflection Temperature | 65–75°C |
| Coefficient of Linear Expansion | ≤7.9×10⁻⁵ mm/mm·°C |
| UV Weathering (3000h, Color Change) | ΔE ≤3.0 |
| Scratch Resistance | ≥3B |
| Capstock-Substrate Bond | No Delamination |
| Moisture Whitening Resistance | No Visible Change |
| Processing Temperature (Co-extrusion) | 175–195°C |
· Advantage
Small Boss🔶UV Fading and Surface Chalking in Outdoor Profiles
High-weatherability capstock retains color and surface integrity after 3000+ hours of accelerated UV exposure, meeting ASTM F964 weathering requirements for exterior applications.
🔶Cap Layer Delamination During Service Life
Optimized rheology and substrate compatibility ensure strong, uniform interlayer bonding during co-extrusion, eliminating peeling and separation risks over the product lifetime.
🔶Surface Scratching and Staining in High-Traffic Areas
Scratch-resistant and stain-resistant formulation maintains surface quality under foot traffic and exposure to food, beverages, and outdoor chemicals.
🔶Moisture Whitening in Dark-Color Capstock
Advanced anti-whitening technology ensures dark-color profiles maintain their appearance without the cloudy surface discoloration common in conventional PVC capstocks.
🔶Proven Quality Control
Every batch undergoes rigorous QC testing including mechanical properties, dimensional stability, and color consistency. Our ISO-certified lab ensures compound performance matches specifications batch after batch.
· Application
Small Boss🔶Decking & Railing
Capped composite and vinyl decking with superior surface durability, UV resistance, and wood-grain aesthetics for residential and commercial outdoor spaces.
🔶Vinyl Fencing
Co-extruded PVC fence profiles with a weatherable cap layer that resists fading, chalking, and surface damage in all climate zones.
🔶Siding & Cladding
Exterior wall cladding profiles featuring long-term color stability, moisture whitening resistance, and customizable gloss levels for architectural appeal.
🔶Window & Door Profiles
Premium capstock for PVC window and door systems, providing UV protection, color retention, and consistent appearance across extended service lives.
🔶Specialty Profiles
Custom extruded profiles for specialized applications in industrial and commercial settings.
🔶Custom Formulations
Tailored compounds developed to meet specific customer requirements for hardness, color, and processing characteristics.
Decking & Railing
Siding & Cladding
Specialty Profiles
· Why Choose Us
Small BossTongxiang Small Boss Special Plastic Products Co., Ltd. has over 30 years of experience in PVC compounding technology. Our dedicated capstock production lines and in-house quality control laboratory ensure consistent performance, color matching, and processing reliability for every batch.
We work closely with profile extrusion manufacturers to customize capstock formulations for specific substrate compatibility, color targets, gloss levels, and regional weathering requirements.
As an ISO-certified manufacturer, we maintain rigorous quality control systems. Our products are tested and verified by international third-party laboratories including SGS, Intertek, and Bureau Veritas.
30+
Years of PVC Compounding Experience
120+
Extrusion Production Lines
72,000
Tons Annual Capacity
100+
Countries Exported
Ready to Upgrade Your Capstock Compound Supply Chain?
Get Free Samples & Technical Consultation
Email: zt02@smallboss.com | Website: www.ztsmallboss.com
Previous: PVC Compound for Building Trim
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