The 6 Best High Build self etching primers (2023 reviews)

Not everyone likes to purchase primer for their regular usage, but the sem best primer would be an anomoly. There is typically an additive in paint for urethane bumpers that allows the paint to flex a little. It works exceptional on bare metal, plastic, and even wood. This will work with the urethane base coat. The high build primer is used under the top coat, to fill any scratches or minor imperfections while finish sanding, and self.

This stuff is good to use before you put your color coat on. It dries really fast and sands beautifully without clogging sandpaper. It is good for building on top of. It is good for bumper if not you will need a flexible primer.

Why We Like This:

Works like a champ for filling scratches and creating transitions
Top coat with most refinish material
Works on flexible or rigid substrates
Will not peel/crack or react to any paint like other rattle can primers

Best For vehicle: Eastwood regular Primer

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Next on the list, we've got yet another primer that manages to win our hearts. It's the eastwood regular primer and it's widely considered as primer that has the most suitable features. This easy-to-use aerosol etches and primes bare, rust-free metal in one step. It is easy to use for spot repairs and bonds better than other aerosol primers while a gallon can has more value for big projects. It is also a single-stage formula that requires no catalyst, making it even easier to use.

The etching primer uses an aggressive solvent system to assure excellent adhesion to clean, rust. The adhesion is much better than regular primer alone under the finish coat.

Why We Like This:

Perfect for painting knobs, hindges, etc
Adheres to steel, stainless, aluminum and chrome
Lacquer-based, single-stage formula requires no catalyst

Best For plastic bumper: SEM High Build self etching Primer

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If your looking for a build primer that's white-this is as good as it gets. The High-build primer surfacer is an elastomeric acrylic coating for priming automotive metal, aluminum, urethane, and plastics. It isn't necessarily a filler but the finish on it after sanding is great. It’s a very close match to 2K primer without the fuss of a spray rig to apply.

This primer is covered in 2k spray can be used in marine applications. It is great for 3D printed parts, so much better than auto parts store brands. It’s definitely a high build primer and sounds easy and you’ll have to put a sealer over it. This primer does very well and can be covered in 2 part base and clear with no neg reaction but it is the primer.

Why We Like This:

Fast drying and sands out nice
Great high build, easily sanded primer
Dries fast and hard and sands great

Best With catalyst: Evercoat High Build self etching Primer

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The evercoat high build self etching primer should be able to handle its purpose and duties with ease. 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 frame is solid however it has moderate pitting in some areas due to corrosion and a generally rough surface after being sand blasted. It's unbelievably easy to spray with a 2.0 tip. The product is very easy to mix and spray just follow instructions and you will have great results.

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 car: Eastwood High Build self etching Primer

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Apply this gray urethane primer over painted or epoxy primed surfaces to create a professional high build coating of urethane primer, leaving a quality finish which will last for years to come. The Eastwood 2k urethane gray primer features a 2 component formula containing the premium eastwood urethane gray primer, 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 provides a lifetime tech support.

Why We Like This:

Made in germany using eastwood specialist proprietary technology
Easy to use and sand, painted car rims
Impressive 3 year shelf life, along with 48 hour pot life once activated

Best For Fiberglass: Custom shop High Build self etching Primer

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The custom shop high build self etching primer is satisfactory and appropriate and fits well with your daily purpose. It offers superior adhesion to bare metal, steel, bare aluminum, fiberglass, gelcoat, body fillers and many properly prepared rigid plastics and sanded oem finishes. It offers superior sanding characteristics and excellent topcoat gloss holdout. It is compatible with and can be top coated with most automotive paint brands like custom shop, restoration shop, ppg, house of kolor, valspar, etc. The formulation contains a rich blend of anti-corrosive additives to achieve maximum defense against rust and corrosion while adding the benefit of outstanding adhesion.

It is available in primer gray with 1-1/4 quart and 1-1/4 gallon kits available. It is easy to use with a 1.4 -1.5 tip with a splash of reducer this is very good.

Why We Like This: