---
product_id: 484818869
title: "Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix)"
brand: "custom shop"
price: "¥116974"
currency: JPY
in_stock: true
reviews_count: 5
category: "Custom Shop"
url: https://www.desertcart.jp/products/484818869-custom-shop-gray-epoxy-primer-sealer-2-1-voc-1
store_origin: JP
region: Japan
---

# Fast Dry in 4 Hours 1:1 Mix Ratio Precision Rich Anti-Corrosive Formula Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix)

**Brand:** custom shop
**Price:** ¥116974
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with pro-grade corrosion defense and speed!

## Quick Answers

- **What is this?** Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) by custom shop
- **How much does it cost?** ¥116974 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/484818869-custom-shop-gray-epoxy-primer-sealer-2-1-voc-1)

## Best For

- custom shop enthusiasts

## Why This Product

- Trusted custom shop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Rust Defense:** Advanced anti-corrosive additives deliver industry-leading protection against rust and salt spray.
- • **Direct-to-Metal Mastery:** Superior adhesion on bare metal, aluminum, fiberglass, and more—no primer layer needed.
- • **Speed Meets Performance:** Fast drying formula lets you topcoat in as little as 30 minutes, accelerating your project timeline.
- • **Universal Compatibility:** Seamlessly pairs with top automotive paint brands like PPG, House of Kolor, and Valspar for a flawless finish.
- • **Effortless Precision Mixing:** 1:1 mix ratio means no guesswork—perfect consistency every time for flawless application.

## Overview

Custom Shop Gray Epoxy Primer/Sealer is a high-performance, 1:1 mix ratio epoxy primer designed for direct-to-metal use. Featuring a lead- and chromate-free formula with advanced anti-corrosive additives, it offers superior adhesion to metals and plastics, excellent salt spray resistance, and fast drying within 4 hours. Compatible with major automotive paint brands, it ensures a smooth, durable base coat ideal for automotive and industrial applications.

## Description

Custom Shop – KEP Series Anti-Corrosive Epoxy Primer / Sealer is a 1 to 1 Mix Ratio high performance primer specifically designed to be used DTM (Direct to Metal). KEP Series Primer contains an advanced resin technology system that offers superior adhesion to Bare Metal, Steel, Bare Aluminum, Fiberglass, Gelcoat. Body Fillers and most properly prepared Rigid Plastics and sanded OEM Finishes. KEP Epoxy Primer is Lead and Chromate Free and its formulation contains a rich blend of Anti-Corrosive additives to achieve maximum defense against rust and corrosion. It also offers excellent salt spray resistance and is a fast dry product. Custom Shop – KEP Series Epoxy Primer is great as a DTM primer but also can be used as an excellent sealer for all single stage Urethane and Basecoat Clearcoat. If used as a sealer add 1/2 part of XR70 or UR70 reducer, topcoat or basecoat can be applied in 30 minutes. Using KEP allows for excellent topcoat gloss holdout. Available in Gray, Black and White in 1 quart kits, 2 quart kits, gallon kits and 2 gallon kits. Great for Automotive and Industrial applications. KEP is compatible with and can be top coated with most Automotive Paint brands like Custom Shop, Restoration Shop, PPG, House of Kolor, Valspar, etc. Lays down super smooth with an Easy ( 1 part to 1 part ) Mixing Ratio allows for more precise mixing, no induction time needed before application. Pot life is 4 hours once mixed. Custom Shop – KEP Series Anti-Corrosive Epoxy Primer is a 2.1 VOC lbs/gallon product that can be used coast to coast.

Review: Great product. People who complain aren’t familiar with it. - Yes it come with a hard black ball in it, that’s pretty typical. And a paint shaker doesn’t work well, get your paint stick out and start stabbing and poking, it will eventually dissolve and it will stay mixed or easy to mix up with a stir or two. It sands nice and hard like you want, and gave a great seal and starting point for my finish paint. I did add a little black tint for a less see through finish and highly advise, it will make it longer to cure but works well. It’s a very high quality primer at a great price point.
Review: Hard to mix but worth the price. - After reading other reviews I was worried about mixing. It took about 10 minutes to mix but it sprays well and flows smooth. I would buy again.

## Features

- Custom Shop – KEP Series Anti-Corrosive Epoxy Primer / Sealer is a 1 to 1 Mix Ratio high performance primer specifically designed to be used DTM (Direct to Metal). KEP Series Primer contains an advanced resin technology system that offers superior adhesion to Bare Metal, Steel, Bare Aluminum, Fiberglass, Gelcoat. Body Fillers and most properly prepared Rigid Plastics and sanded OEM Finishes.
- KEP Epoxy Primer is Lead and Chromate Free and its formulation contains a rich blend of Anti-Corrosive additives to achieve maximum defense against rust and corrosion. It also offers excellent salt spray resistance and is a fast dry product.
- Custom Shop – KEP Series Epoxy Primer is great as a DTM primer but also can be used as an excellent sealer for all single stage Urethane and Basecoat Clearcoat. If used as a sealer add 1/2 part of XR70 or UR70 reducer, topcoat or basecoat can be applied in 30 minutes. Using KEP allows for excellent topcoat gloss holdout.
- Available in Gray, Black and White in 1 quart kits, 2 quart kits, gallon kits and 2 gallon kits. Great for Automotive and Industrial applications. KEP is compatible with and can be top coated with most Automotive Paint brands like Custom Shop, Restoration Shop, PPG, House of Kolor, Valspar, etc.
- Lays down super smooth with an Easy ( 1 part to 1 part ) Mixing Ratio allows for more precise mixing, no induction time needed before application. Pot life is 4 hours once mixed. Custom Shop – KEP Series Anti-Corrosive Epoxy Primer is a 2.1 VOC lbs/gallon product that can be used coast to coast.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NXWCN8H |
| Age Range Description | Adult |
| Best Sellers Rank | #359,413 in Home Improvement ( See Top 100 in Home Improvement ) #226 in Primer Paint |
| Brand | Custom Shop |
| Brand Name | Custom Shop |
| Color Code | #808080 |
| Colour | Black,Gray,White |
| Container Type | Tin |
| Country of Origin | USA |
| Coverage | 64 square feet |
| Customer Reviews | 4.1 out of 5 stars 497 Reviews |
| Dry Time In Hours | 4 |
| Finish Type | Matte |
| Included Components | Hardener |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | False |
| Item Form | Spray |
| Item Volume | 32 Quarts |
| Manufacturer | Custom Shop |
| Model Name | Anti-Corrosive Epoxy Primer/Sealer |
| Paint Type | Spray |
| Part Number | Kit-KEP405-HG |
| Size | 32 Fl Oz (Pack of 2) |
| Special Feature | Rust Resistant |
| Special Features | Rust Resistant |
| Specific Uses For Product | Automotive and industrial applications, use as a sealer for single-stage urethane and basecoat clearcoat |
| Surface Recommendation | Metal,Steel |
| UPC | 848849098150 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Custom Shop
- **Colour:** Black,Gray,White
- **Finish Type:** Matte
- **Item Volume:** 32 Quarts
- **Size:** 32 Fl Oz (Pack of 2)

## Images

![Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) - Image 1](https://m.media-amazon.com/images/I/71RrhIWXVbL.jpg)
![Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) - Image 2](https://m.media-amazon.com/images/I/71xuajLhorL.jpg)
![Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) - Image 3](https://m.media-amazon.com/images/I/71yifJXRP9L.jpg)
![Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) - Image 4](https://m.media-amazon.com/images/I/71+jUNHcOBL.jpg)
![Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix) - Image 5](https://m.media-amazon.com/images/I/71-Qvji0MAL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: after applying this, do I need to sand before painting or have this adhesive??**
A: You can paint over within 24 hours, any longer you need to scuff with atleast a scothbrite or 240-320 for primer 400-600 grit for top coat.

**Q: Can i use transtar urethane reducer to use this as a sealer**
A: Follow the prjnted instructions for prjmer and sealer.

1:1 as primer and 1:1:1/2 as sealer.

**Q: bare metal (car) have scratches  will this fill scratches? if not what product do you recommend to fil scratches?**
A: To fill pits and scratch I use : Bondo glazing spot putty

**Q: can be use on  primer (urethane) all ready apply ?  to make sure no  rust**
A: I don’t know about that but it’s supposed to go on direct to metal so it doesn’t rust and polyester filler primer on top after .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product. People who complain aren’t familiar with it.
*by A***D on 26 October 2025*

Yes it come with a hard black ball in it, that’s pretty typical. And a paint shaker doesn’t work well, get your paint stick out and start stabbing and poking, it will eventually dissolve and it will stay mixed or easy to mix up with a stir or two. It sands nice and hard like you want, and gave a great seal and starting point for my finish paint. I did add a little black tint for a less see through finish and highly advise, it will make it longer to cure but works well. It’s a very high quality primer at a great price point.

### ⭐⭐⭐⭐⭐ Hard to mix but worth the price.
*by H***Y on 29 April 2026*

After reading other reviews I was worried about mixing. It took about 10 minutes to mix but it sprays well and flows smooth. I would buy again.

### ⭐ Could not fully mix - Stubborn solids
*by A***N on 29 November 2023*

I've been a huge fan of Custom Shop products for some time now, as I've ordered many times from TCP Global. However, this last batch of primer was extraordinarily difficult to use. The solids just would not mix. I used a drill-attached mixer, I took the can do a paint shop to have them mix it in a machine, and there was still solids at the bottom of the can that would not mix. Additional mixing with a drill attachment after having the can shaken did not help get the last significant chunks of solids to mix. Shooting the primer like this gave me a highly glossy finish (more resin, less solids), which was a royal pain to sand down. Upon contacting the seller, they assured the solids in the can were normal, and that it would mix, but was not the case. Upon looking at reviews again, this looks to be the case for a few other buyers here as well. I'm fairly certain I got a bad can of primer. Additionally, one of the two cans I received was dented, so it was VERY difficult to close the lid and create a proper seal after opening it. I'll be making the jump to Speedokote for my next batch of primer.

## Frequently Bought Together

- Custom Shop - Gray Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. Hardener (1-1 Mix)
- Restoration Shop / Custom Shop - UR70 Medium Urethane Reducer (Quart) for Automotive Paint and Industrial Paint Use - High Performance Automotive Grade
- TCP Global Premium Paint Mixing Essentials Kit with 12 Cups, 12 Sticks, 12 Paddles, 12 Strainers & Can Opener

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-04*