Product Properties
- Gel Time: 10–15 minutes (at 2% MEKP, ambient ≥ 64°F / 18°C)
- Mix Ratio: 2% MEKP by weight (approx. 20 cc per quart)
- Application Thickness: Minimum 10 mil total build (4–5 mils per pass, crosshatch technique)
- Sanding Time: After full cure; typically 2–4 hours depending on temperature
- Polishing / Topcoat Window: Minimum 8 hours after start of sanding
- Colour Options: White
Key Features
Exceptional Surface Quality
Rapid film build allows users to achieve a smooth, defect-free surface with fewer passes.
Easy Sanding & Finishing
Sands cleanly with minimal clogging, enabling fast progression to fine grits and final polishing.
Excellent Filling & Fairing Capability
Effectively fills surface profile, pinholes and minor imperfections to achieve a uniform finish.
Low Shrinkage & Dimensional Stability
Maintains surface accuracy during cure and post-cure, ideal for plug and mould construction.
Versatile Application Options
Can be sprayed with HVLP or gelcoat systems and used both in-mould or on finished substrates.
Compatible with Polyester & Vinyl Ester Systems
Bonds reliably to composite tooling, patterns, FRP laminates and matched Duratec surfacing products.
Why Choose Duratec® Primers?
Exceptional Surface Quality
Formulated to eliminate pinholes, porosity and print-through, Duratec primers build rapidly to deliver a fair, high-density surface ready for sanding and finishing.
Fast & Efficient Processing
High-solids, easy-to-sand formulations reduce labour time while delivering consistent results—ideal for commercial production environments.
Proven Performance in Demanding Environments
Originally developed for high-performance marine applications, Duratec primers now support a wide range of industries requiring accuracy, stability, and long-term durability.
Compatible with Multiple Substrates
Suitable for polyester, vinyl ester, epoxy laminates, FRP moulds, plug construction, composite tooling, and repair substrates.
Applications
Plug and pattern surfacing
Composite mould preparation
Surface filling and profile correction
Fairing of tooling, FRP components and composite assemblies
High-gloss topcoat preparation for marine, industrial and automotive parts
In-mould surfacing when a smooth, polishable finish is required
Performance You Can Trust
ATL Composites stocks a comprehensive range of Duratec primers 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.
