The 7 Best Epoxy primers For Fiberglass (2023 reviews)

Date : June 21, 2023
Categories : Automotive Primers

We consider a epoxy primer for fiberglass to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

Our review process:

Our Top Picks:

Best Overall:

Buy: Custom shop super Primer

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Best For aluminium:

Buy: Eastwood And durable finish

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Best For engine Paint:

Buy: VHT Epoxy Primer For Fiberglass

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Best With catalyst:

Buy: Evercoat Epoxy Primer For Fiberglass

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Best For Automotive vehicles:

Buy: Custom shop Epoxy Primer For Fiberglass

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Best For Metal:

Buy: Eastwood Epoxy Primer For Fiberglass

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Best For Use:

Buy: Kirker Epoxy Primer For Fiberglass

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Best Overall: Custom shop super Primer

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The Premium self-etching acid etch primer is a ready-to-spray, self-etching primer with tremendous adhesion and flexibility properties. It improves color holdout, gloss retention and has excellent inter-coat adhesion. It is ideal for use over bare metals such as aluminum and steel.

This primer works excellent under all major brands of truck bed liner coatings like custom coat, upol raptor, and gator guard. It is fast drying and is sandable after 60 minutes. It is perfect primer for fleet and oem manufacturers.

Why We Like This:

New and hot release
Good brand reputation

Best For aluminium: Eastwood And durable finish

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Next on the list, we've got yet another primer that manages to win our hearts. It's the eastwood and durable finish and it's widely considered as primer that has the most suitable features. Eastwood's 2k epoxy primer aerosol allows you to paint with the durability and precision of a two-component coating without the paint gun. Apply this automotive aerosol gray primer on car body panels, aluminium, steel, or fiberglass to create a durable finish, and to effectively prevent rust. It sprays evenly and has a nice wet edge.

The innovative nozzle and valve technology, combined with its two internal chambers, ensure the right ratio is mixed every time. The Eastwood 2k epoxy gray primer features a 2 component formula containing the premium eastwood gray epoxy paint, and the 2k activator formula. It comes with an in-house product design, development and testing and a strong track record of high-quality, innovative products. It is a must to seal and prime anything before base coat.

Why We Like This:

Most durable aerosol epoxy primer available
You'll achieve professional results from an easy-to-spray aerosol
Good brand reputation

Best For engine Paint: VHT Epoxy Primer For Fiberglass

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This is the way to go for metal prep before using paint. It takes two to three coats to cover bare aluminum with this thin green tinged primer. This primer is very thin-bodied and needs to be applied in VERY LIGHT coats. The first coat will appear blotchy and irregular, that's fine. This is used to get good adhesion to difficult to paint materials such as aluminum. This is an excellent primer, especially for use on aluminum which is usually very difficult to paint, but the method of application is NOT like other primers.

Why We Like This:

Bodied and needs to be applied in very light coats
Wets out great, does not run, dries to a nice flat olive green color
Excellent self-etch primer, especially for aluminum

Best With catalyst: Evercoat Epoxy Primer For Fiberglass

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The evercoat epoxy primer for fiberglass might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. This stuff goes on like a top-coat and builds to a thick, smooth finish. It sprays on thick, sinks into welds and really dries nicely. The product is very easy to mix and spray just follow instructions and you will have great results. The frame is solid however it has moderate pitting in some areas due to corrosion and a generally rough surface after being sand blasted. It is compatible with waterborne paint and voc.

Why We Like This:

Sprays good, covers well fills and block sands nicely
Good filler for light scratching and sands well
Takes little bit of practice for diy guy

Best For Automotive vehicles: Custom shop Epoxy Primer For Fiberglass

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If you often find yourself scrambling for convenient and suitable primer, custom shop epoxy primer for fiberglass should be your first option for buying. The High Build 2.1 VOC Acrylic Lacquer Primer Surfacer is a premium, lead-free primer surfacer that provides outstanding build for fast filling without shrinkage when used as directed. It provides excellent adhesion over properly prepared substrates. It can be easily sanded, wet or dry, to a fine feather-edge and offers excellent adhesion and color holdout. It will work to make sure it dries thoroughly. It is ideal primer for automotive vehicles, fleet, industrial products, and oem manufacturers.

Why We Like This:

Good investment for long term
Good brand reputation

Best For Metal: Eastwood Epoxy Primer For Fiberglass

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The eastwood epoxy primer for fiberglass is specially designed for your regular usage and has all useful features. This stuff works very well at sealing and filling MDF for high gloss polyester finishes that need to be mirror flat. It comes with an in-house product design, development and testing and a strong track record of high-quality, innovative products. It is used to make molds and plugs for fiberglass. It is not waterproof and should not be wet sanded. It provides a lifetime tech support.

It's primary use is for repairing damaged fiberglass body work and is a base for gel coating. It's easy to sand with no shrinkage.

Why We Like This: