after applying this, do I need to sand before painting or have this adhesive??

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.

Can i use transtar urethane reducer to use this as a sealer

Follow the prjnted instructions for prjmer and sealer. 1:1 as primer and 1:1:1/2 as sealer.

bare metal (car) have scratches will this fill scratches? if not what product do you recommend to fil scratches?

To fill pits and scratch I use : Bondo glazing spot putty

can be use on primer (urethane) all ready apply ? to make sure no rust

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 .

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Custom Shop - White Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance Primer for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. of Epoxy HDR.(1-1 Mix)

Custom Shop - White Epoxy Primer/Sealer 2.1 VOC (1/2 Gallon Kit) Anti-Corrosive DTM High-Performance Primer for Automotive and Industrial use Kit = 1 Qt. Epoxy Primer +1 Qt. of Epoxy HDR.(1-1 Mix)

Product ID: 613678253

Details

Brand
Custom Shop
Colour
White
Finish Type
Gloss
Size
1-Half Gallon
Item Volume
1 Quarts

⏱️Fast 1-Hour Dry Time

⚙️1:1 Mix Ratio Precision

🛡️Rich Anti-Corrosive Formula

Description

🛠️ Seal the deal with pro-grade protection and speed!

RAPID RECOAT READY - Topcoat or basecoat can be applied in just 30 minutes when used as a sealer, accelerating your workflow without compromising quality.
UNMATCHED RUST DEFENSE - Loaded with advanced anti-corrosive additives and salt spray resistance to keep your metal surfaces pristine and protected.
ECO CONSCIOUS PERFORMANCE - Low 2.1 VOC formula that’s lead and chromate free—high performance meets responsible craftsmanship.
EFFORTLESS PRECISION MIXING - 1:1 mix ratio means zero guesswork and no induction time—perfect for busy pros who demand flawless prep every time.
VERSATILE DIRECT TO METAL APPLICATION - Superior adhesion on bare metal, aluminum, fiberglass, and more—ideal for automotive and industrial-grade projects.

Custom Shop’s White Epoxy Primer/Sealer 2.1 VOC is a high-performance, anti-corrosive DTM primer kit featuring a precise 1:1 mix ratio, fast 1-hour dry time, and superior adhesion to multiple surfaces. Lead and chromate free with excellent salt spray resistance, it’s designed for automotive and industrial use, compatible with top paint brands, and delivers smooth, durable finishes that accelerate your project timeline.

Specifications

ASIN	B07NXWBD87
Age Range Description	Adult
Brand	Custom Shop
Brand Name	Custom Shop
Color Code	#FFFFFF
Colour	White
Container Type	Tin
Country of Origin	USA
Coverage	about 100 square feet per quart
Customer Reviews	4.0 out of 5 stars 483 Reviews
Dry Time In Hours	1
Finish Type	Gloss
Included Components	Primer, Hardener
Indoor Outdoor Usage	Outdoor
Is Waterproof	Maybe
Item Form	Spray
Item Volume	1 Quarts
Manufacturer	Custom Shop
Model Name	Epoxy Primer/Sealer
Paint Type	Spray
Part Number	Kit-KEP407-HG
Size	1-Half Gallon Kit
Special Feature	Anti-Corrosive, Fast-Drying, Salt Spray Resistant
Special Features	Anti-Corrosive, Fast-Drying, Salt Spray Resistant
Specific Uses For Product	Automotive, Industrial
Surface Recommendation	Metal
UPC	848849098198
Unit Count	1 Count
Water Resistance Level	Water Resistant

Reviews

J**.

Great quality

23.03.2026

D**L

Recommend. Top brand

16.03.2026

A**N

Could not fully mix - Stubborn solids

29.11.2023

A**D

Great product. People who complain aren’t familiar with it.

26.10.2025

L**G

Worked Great.

29.03.2026

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