Product Properties
- Viscosity: 540–800 cps (Brookfield RVF, 20 rpm)
- Thixotropic Index: Minimum 3.0
- Gel Time: 15–18 minutes (100 g mass, 2% MEKP)
- Weight per Gallon: ~8.84 lb/gal
- Coverage: ~80 sq ft per gallon at 20 mil thickness
- Colour: Clear (slight natural hue in container)
- Shelf Life: 6 months (unopened, stored correctly)
- Recommended Film Build:
12 mils typical for UV protection
Up to 22 mils possible for heavy post-sanding or high-gloss finishing
- Application Methods: Spray (HVLP recommended), brush or roller for wood applications
Key Features
Outstanding UV Resistance
Resists yellowing and degradation under sunlight—no urethane clear coat required.
High-Gloss, Wet-Look Finish
Polishes to a deep, reflective gloss ideal for carbon fibre, FRP and premium surface finishes.
Easy Application & Finishing
Sprays smoothly, levels well, and sands/polishes easily for professional results.
Pre-Promoted Formula
Ready to use with simple MEKP catalysis; cures without wax, delivering reliable consistency.
Excellent Chemical Resistance
Highly cross-linked polymer network ensures strong resistance to solvents and environmental exposure.
Strength & Flexibility
Provides excellent impact resistance and flexibility, supporting use on rigid and semi-flexible substrates.
In-Mold or Topcoat Application
Suitable for in-mold coating, wet-on-wet over polyester gelcoat, or as a topcoat over cured laminates.
Why Choose Duratec® Clear Coatings?
Superior Optical Clarity
Formulated to deliver true clarity and high-gloss finishes with minimal colour shift or haze, ensuring premium visual presentation.
High Build & Excellent Sanding Characteristics
Rapid-build coatings that can be sanded and polished to a flawless, ultra-smooth surface ideal for moulding or finishing workflows.
Exceptional Surface Wetting & Penetration
Deep substrate wetting improves adhesion, reduces porosity, and enhances the performance of subsequent finishing layers.
Fast Cure for Efficient Production
Rapid gelling and quick sanding times help fabricators accelerate plug and pattern preparation while maintaining surface accuracy.
Versatile Compatibility
Compatible with polyester, vinyl ester and most epoxy systems, depending on product selection—supporting a broad range of manufacturing processes.
Durable Performance in Demanding Environments
High thermal stability and strong mechanical properties deliver long-lasting surface integrity for industrial and marine applications.
Performance You Can Trust
Applications
Duratec® Clear SunShield 904-061 is ideal for:
Exterior carbon fibre components requiring UV stability and a high-gloss finish
Exterior fiberglass (FRP) parts across marine, industrial and automotive sectors
Marine surfaces above the waterline, including topsides, deck accessories and composite structures
Outdoor timber and furniture, providing a durable, UV-resistant clear finish
High-gloss protective topcoat for polyester laminates, gelcoat and vinyl ester surfaces
Wet-on-wet application over unwaxed polyester gelcoat for a protective UV sealing layer
In-mold coating for parts requiring a premium surface finish directly from the mold
Restoration or refinishing of composite or carbon fibre parts exposed to sunlight
ATL Composites stocks a comprehensive range of Duratec coating systems and support materials, backed by technical expertise and industry-leading application knowledge. Our team can assist with product selection, processing recommendations and integration into marine, industrial or composite manufacturing workflows.
