The 18 Best Epoxy Primers for Strong and Long-Lasting Coatings of 2023

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Premium Epoxy: Pennant Topside is a 2-part, waterborne linear polyurethane designed for marine topside applications, above or below the waterline; Easy to apply by brush, roller or sprayer

Features: Formulated to provide exceptional exterior durability, this boat paint contains state-of-the art UV absorbers designed to slow the effects of the sun's damaging rays, it's buttery consistency makes it easy to measure by weight or volume

Versatile Application: Our primer paint is designed for use in marine environments, specifically for topside wood or fiberglass boat applications; To ensure good adhesion, sand before applying extra coats of putty, resin, or other coatings/finishes

Curing: When cured, this epoxy primer has exceptional scratch, mar, and chemical resistance, without any solvents, and features a 24-hour pot life; For best results, apply at 50 F or above

Tips and Tricks: Before using this marine epoxy, wipe excess water from the end of the tip, and after spraying a coat, submerge the tip in water

Easy 4:1 mix primer with optional 5-10% reduction with 0 voc reducer (SMR-0075)

Can be used as a primer and a sealer

Great adhesion to Steel, Aluminum, Fiberglass, Body fillers and Existing finishes

Lays down super smooth at 4:1 or with optional 5-10% 0 voc reducer (SMR-0075)

Excellent adhesion and corrosion resistance

High-build two part epoxy primer and barrier coat for use above and below the waterline

Excellent for gelcoat blister prevention and repair work on fiberglass boats

Provides superior protection on all underwater metals

Easy to mix and apply by roller or spray. No sanding required. Fast drying primer creates a flexible, durable epoxy barrier coat.

Available in White or Gray in Quart or Gallon sizes. Coverage: 225 sq. ft. per gallon (at 7 mils wet). Thinner: TotalBoat Epoxy Primer Thinner 200.

Easy 4:1 mix primer with optional 5-10% reduction with 0 voc reducer (SMR-0075)

Excellent adhesion and corrosion resistance

Lays down super smooth at 4:1 or with optional 5-10% 0 voc reducer (SMR-0075)

Great adhesion to Steel, Aluminum, Fiberglass, Body fillers and Existing finishes

Can be used as a primer and a sealer

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.

RAPTOR Anti-Corrosive Epoxy Primer is a 2K high performance primer specifically designed to be used under RAPTOR Protective Coating to further extend the protective and anti-corrosive properties of RAPTOR

The advanced resin technology in RAPTOR Anti-Corrosive Epoxy Primer improves adhesion to bare metal and most other prepared surfaces, and promotes intercoat performance to further extend the life of RAPTOR protective coating

It contains a blend of anti-corrosive additives to inhibit rust and corrosion and offers excellent salt spray resistance

Can be applied directly over surface rust

Can be applied wet on wet

1L covers approximately 60 sq feet at 3 MIL

Salt spray resistance test completed at >1000 hours according to ASTM B117 at an independent laboratory

Fit Type: Universal Fit

RAPTOR Anti-Corrosive Epoxy Primer is a 2K high performance primer specifically designed to be used under RAPTOR Protective Coating to further extend the protective and anti-corrosive properties of RAPTOR

The advanced resin technology in RAPTOR Anti-Corrosive Epoxy Primer improves adhesion to bare metal and most other prepared surfaces, and promotes intercoat performance to further extend the life of RAPTOR protective coating

It contains a blend of anti-corrosive additives to inhibit rust and corrosion and offers excellent salt spray resistance

Can be applied directly over surface rust

Can be applied wet on wet

1L covers approximately 60 sq. feet at 3 MIL

Salt spray resistance test completed at >1000 hours according to ASTM B117 at an independent laboratory

Flash Point: 75.2

Fit Type: Universal Fit

Amazing corrosion resistant coating that has no chromate or lead

With great adhesion on multiple surfaces that have been properly prepared

Boost adhesion of body fillers

Resists damage caused by water permeation