Product Properties
- Viscosity: 700–1000 cps (Brookfield RVF, Spindle #5, 2.5 rpm)
- Thixotropic Index: 4
- Gel Time: 11–19 minutes (100 g sample, 2% MEKP – Norox 925H)
- Weight per Gallon: 8.7 lb/gal
- Coverage: ~80 sq ft per gallon at 20 mil thickness
- Colour: Black
- Shelf Life: 6 months (unopened, stored correctly)
- Recommended Film Build: 18+ mils (applied in 4–5 mil passes with adequate outgassing)
- Application Method: HVLP spray recommended
Key Features
Brilliant High-Gloss Finish
Transfers exceptional gloss to tooling gelcoat, reducing or eliminating sanding and buffing for molds and patterns.
High Heat Distortion Temperature
Withstands temperatures up to 150°C (300°F), ideal for high-temperature tooling and interior applications.
Easy Spray Application
Sprays smoothly through HVLP equipment with excellent flow and leveling.
Resists Fisheyes & Surface Defects
Special additives improve wetting, reduce porosity, and help prevent fisheyes, pinholes and surface imperfections.
Smooth, Hard Finish
Cures to a non-wax, tack-free, high-gloss surface with minimal orange peel and excellent durability.
In-Mold or Topcoat Use
Designed for both direct in-mold coating and post-laminate topcoating applications.
Why Choose Duratec® Clear Coatings?
Porcelain-Hard, High-Gloss Finish
Achieve a flawless, mirror-like surface without waxes or PVA — ideal for plug and mould production.
Fast, Efficient Processing
Rapid cure times and excellent sandability reduce labour, accelerate turnaround and improve workflow consistency.
Superior Surface Restoration
Easily refurbish worn or low-gloss moulds, eliminate print-through and deliver a uniform final finish.
Air-Cure Technology
Advanced chemistry ensures reliable curing and gloss retention without additional sealing products.
Compatible Across Resin Systems
Works seamlessly with polyester, vinyl ester and epoxy tooling systems, making it versatile for mixed-production environments.
Reduced Rework & Downtime
High-build capability and strong filling properties allow quick repair of scratches, pinholes and surface defects.
Proven in Demanding Industries
With 40+ years of field use, Duratec® has become the benchmark finishing system for marine, automotive, defence, aerospace and industrial tooling.
Applications
Duratec® Vinyl Ester Hi-Gloss Topcoat is ideal for:
Plug & Pattern Topcoating
Producing high-gloss, print-free surfaces ready for mold construction.Mold Resurfacing & Restoration
Restoring worn tooling surfaces to smooth, durable, high-gloss condition.In-Mold Coating
Applying directly inside molds to achieve a polished finish from the tool.High-Temperature Interior Components
Suitable for composite parts used above 200°F (93°C) due to high HDT.Tooling & Composite Fabrication
Creating low-porosity, defect-resistant surfaces for tooling applications.Industrial & Composite Coatings
Where a durable, high-gloss, hard surface is required.
Performance You Can Trust
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.
