Product Properties
- Viscosity: 350,000–400,000 cps (Brookfield RVF, Spindle #5 at 2.5 rpm)
- Gel Time: 3–8 minutes (Catalysed at 3% BPO crème hardener)
- Weight per Gallon: 10.7 lb/gal
- Heat Distortion Temperature (HDT): 150°C (300°F)
- Build Thickness: Up to ¼ inch per application
- Cure to Sand: 20–30 minutes (typical)
- Colour: Orange (1808-007)
Key Features
Quick Cure
Catalyses rapidly with BPO paste; sandable in as little as 20–30 minutes for accelerated repairs.
High Heat Distortion Temperature
HDT of 150°C (300°F) ensures stability in high-temperature or high-exotherm environments.
Low Porosity
Ultra-fine fillers reduce air entrapment, producing dense, strong, pinhole-free repairs.
High Build Capability
Can be trowelled up to ¼ inch per application; thicker builds possible with layered application.
Durable, Polishable Repair Surface
Cures to a tough, easily sanded and polished finish for seamless mold blending.
Smooth, Thixotropic Handling
Easy to spread, shape, and tool for precise contouring of repair areas.
Consistent Quality & Reliability
Formulated to meet strict performance standards for dependable repair outcomes.
Why Choose Duratec® Putty?
High-Build & Smooth Application
Easy-to-apply formulas that spread cleanly and build thickness quickly for efficient fairing.
Fast Cure & Easy Sanding
Achieve rapid turnaround times with putties that cure quickly and sand to a fine, uniform finish.
Low Shrinkage & Dimensional Stability
Formulated to maintain profile accuracy, reducing rework and improving final surface quality.
Excellent Adhesion
Bonds reliably to composite tooling substrates including polyester, vinyl ester and epoxy.
Ideal for Surface Restoration
Perfect for filling pinholes, repairing scratches, eliminating print-through and correcting minor surface distortions.
Compatible with Duratec® Primers & Top Coats
Designed as part of a complete finishing system, ensuring optimal gloss, durability and long-term performance.
Applications
Duratec® Vinyl Ester Mold Repair Putty is ideal for:
Repairing cracks, chips, dents and damage in composite molds and tooling
Resurfacing worn or degraded mold areas to restore gloss and accuracy
Rebuilding mold radii, edges, and features prior to polishing
Correcting imperfections in polyester, vinyl ester and most epoxy composite molds
High-temperature tooling repairs where heat resistance is essential
Production line mold maintenance requiring fast turnaround and minimal downtime
Fairing and contour restoration on large or complex mold surfaces
Pre-finish shaping before polishing or application of Duratec Hi-Gloss topcoats
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.
