Custom Shop KEP Epoxy Primer/Sealer – DTM Anti-Corrosive, 2.1 VOC Gallon Kit (2 Qt Primer + 2 Qt Hardener)

Overview

Custom Shop KEP Series Anti-Corrosive Epoxy Primer/Sealer is a direct-to-metal (DTM) primer designed for demanding automotive and industrial environments. It uses an advanced resin system to bond to bare metal, steel, bare aluminum, fiberglass, gelcoat, body fillers, and many properly prepared rigid plastics and sanded OEM finishes. The result is a smooth, consistent base that supports reliable topcoats without compromising long-term protection.

Why it stands out

• Lead- and chromate-free formulation with anti-corrosive additives for rust defense and strong salt spray resistance.
• DTM capability plus broad substrate adhesion for versatile, one-step prep.
• 1 to 1 mixing ratio with a four-hour pot life and no induction time required prior to application.
• Fast dry performance that helps you move quickly to topcoats while maintaining gloss holdout.
• Works as a sealer for single-stage urethane and basecoat/clearcoat systems; when reduced, topcoat can be applied in about 30 minutes.

Usage, compatibility, and colors

The primer is available in gray, black, and white and is offered in gallon kits as well as smaller sets. The standard kit includes 2 quarts of epoxy primer and 2 quarts of epoxy hardener, enabling a clean 1-to-1 mix. It lays down with a smooth, even film and supports consistent topcoat results across compatible systems.

• VOC: 2.1 lbs per gallon, designed for coast-to-coast use with compliant emissions.
• Mixing and application: simple 1:1 ratio, no induction time, easy laydown for predictable results.
• Topcoat compatibility: ready to pair with most automotive brands and finishes, including Custom Shop and others across the industry.
• Finish and handling: promotes good gloss holdout and a solid base for subsequent coats.

Real-world use cases

Whether preparing automotive panels for repainting or refurbishing industrial gear, this primer provides a dependable foundation for demanding environments. It supports direct-to-metal prep, while also serving as a robust sealer option when used with compatible coatings. The 2.1 VOC formula helps keep workflows compliant, and the kit’s 4-hour pot life allows for steady, controlled mixing and application.

Practical guidance

For sealing applications, consider using XR70 or UR70 reducers if you plan to topcoat within about 30 minutes. This can help optimize workflow while maintaining topcoat gloss and adhesion. Always follow surface preparation best practices to maximize adhesion and long-term performance.