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

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

Product ID: 120009506

Details

Brand
Custom Shop
Color
Gray
Indoor/Outdoor Usage
Outdoor
Item Volume
2 Quarts
Paint Type
Spray
Size
32 Fl Oz (Pack

⏱️Fast 15-Minute Cure Time

⚙️1:1 Mix Ratio Precision

🛡️Advanced Anti-Corrosive Formula

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VT70383

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Description

🛠️ Seal the deal with speed and strength—your metal’s new best friend!

RAPID RECOAT READY - Topcoat or basecoat can be applied in just 30 minutes, accelerating your project timeline without sacrificing quality.
ULTIMATE RUST DEFENSE - Loaded with cutting-edge anti-corrosive additives to keep your metal surfaces pristine and corrosion-free.
ECO CONSCIOUS PERFORMANCE - Low 2.1 VOC formula that's lead and chromate free, delivering high performance with reduced environmental impact.
EFFORTLESS PRECISION MIXING - 1:1 mix ratio means no guesswork—perfect consistency every time for flawless application.
VERSATILE DIRECT TO METAL USE - Superior adhesion on bare metal, aluminum, fiberglass, and more—ideal for automotive and industrial pros.

Custom Shop Gray Epoxy Primer/Sealer Gallon Kit offers a professional-grade, 1:1 mix epoxy primer with advanced anti-corrosive technology. Designed for direct-to-metal applications, it ensures superior adhesion on multiple surfaces including steel and aluminum. Fast drying with a 15-minute cure time and low 2.1 VOC content, this lead- and chromate-free primer accelerates automotive and industrial projects while providing excellent rust and salt spray resistance.

Specifications

ASIN	B07NXWF5BV
Age Range Description	Adult
Best Sellers Rank	#31,233 in Automotive ( See Top 100 in Automotive ) #23 in Automotive Primers
Brand	Custom Shop
Brand Name	Custom Shop
Color	Gray
Color Code	#808080
Container Type	Can
Customer Reviews	4.2 out of 5 stars 683 Reviews
Full Cure Time	15 Minutes
Indoor Outdoor Usage	Outdoor
Is Waterproof	True
Item Form	Gel
Item Volume	2 Quarts
Manufacturer	Custom Shop
Paint Type	Spray
Part Number	Kit-KEP405-GL
Size	32 Fl Oz (Pack of 4)
Special Feature	Fast-Drying
Special Features	Fast-Drying
Specific Uses For Product	car
Surface Recommendation	Metal
UPC	848849098204
Unit Count	128 Fluid Ounces
Water Resistance Level	Water Resistant

Reviews

J**.

23.03.2026

R**A

25.04.2026

A**N

29.11.2023

H**Y

29.04.2026

A**R

2.04.2026

C**R

2.06.2025

A**D

26.10.2025

L**G

29.03.2026

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