The 9 Best High Build Exterior Primers (2022 reviews)

Best part: Speedokote High Build Exterior Primer costs reasonable and it is available to ship in 24 hours. The speedokote high build exterior primer is affordable, is normal and its price is right. Shoot 2k high built urethane primer. And, this works great and it sands easily.

The primer has good coverage and it covers well. Finally, the speedokote high build exterior primer is thin with urethane reducer and it lays down.

Almost all buyers quickly discovered that the primer is easy to spray with a siphon gun with a 1.8mm needle. In addition, a few also found that the primer has really good customer service. Further, a few strongly agree that the primer will sink into the primer and not be a uniform finish. In conclusion, buyers found this to be one of the best primers for daily purposes.

Top Customer Quotes:

This two - part type of primer is designed to be sprayed on.
This covers very well and it is best for great results.
This is great on fiberglass. You can roll it. spray is better.
This works very well, has follow the instructions and it sprays well.

Best For Country Of Origin: Duplicolor High Build Exterior Primer

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The Duplicolor High Build Exterior Primer is capable of outshining several other primers featured in this list in overall features for the price point. The duplicolor high build exterior primer dries quickly, sprayed on well and it is perfect for great coverage. Make sure this fits by entering your model number. In addition, the primer fits low for good coverage and it is crafted with good bonding.

Above all, the duplicolor high build exterior primer is good for country of origin and it works great.

Most buyers opine that the primer is good for a spray can based primer, but the label is correct about only filling 1/16 inch scratches. In addition, a few say that the primer can be applied on top of the etching primer. In addition, they strongly agree that it can be sprayed evenly with no blotches or drips, and when used according to the instructions, dried exactly as it should be.

Top Customer Quotes:

This is perfect for smoothing out 3d prints.
This will pretty much make it all fall off.
This is a lot cheaper at the corner auto parts store though.
Country of origin : United States.

Best For Aluminum: 3M High Build Exterior Primer

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The 3M High Build Exterior Primer might be a relatively new release, but it's still nothing short of impressive this year. The 3m high build exterior primer is soft, very smooth and it is easy to use. You can use it for a range of windshield types, including those with pre-applied adhesive (paas) systems or pvc/encapsulated glass. This one - part primer is ideal for touching up minor pinchweld scratches and can be used to prime encapsulated glass.

The primer goes on easily and it is industrial. And, the primer is for corrosion protection, is normal and it is easy to use fast-drying. Lastly, the 3m high build exterior primer requires no activator,s dries fast and it is great with good bonding.

Almost all buyers opine that the primer is designed to hold the canvass in place. Also, they also found that the primer is also a black-out primer to block out the sun's ultraviolet rays. Also, a few say that the primer has about a 7 day shelf life.

Top Customer Quotes:

This primer is a solid flat black low viscosity liquid.
Uv resistant: helps preserve urethanes for long-lasting windshield installations.
This is used to mix with epoxy or anything along those lines.
This is good as new and holding.

Best For Great Finish: Sem High Build Exterior Primer

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If you often find yourself confused about appropriate and satisfactory primer, Sem High Build Exterior Primer should be your first option for buying. The high buildexterior primer is best for great results and it provides excellent coverage. Make sure this fits by entering your model number. And, it works very well and it covers well.

The primer fills in great, works on automotive metal and it is made for a great finish. And, it is made for great paint and it is made for heavy paint. Above all, the high build exterior primer went on nice and it is perfect for great coverage.

Most buyers opine that the primer is as good as finished matte paint. And, a few strongly agree that the primer is a great primer for prepping surfaces for urethane paint. And, a few strongly agree that the primer is good for the fender for sure.

Customers say that getting a spraying high build primer, along with primer is useful.

Top Customer Quotes:

This will work as long as the surface is clean.
42013 sem high build primer surfacer gray - part#42013.
It dries quickly, is spray really nice and it works great.
This is perfect for building on top of.

Best For Good Stuff: Evercoat High Build Exterior Primer

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The Evercoat High Build Exterior Primer is capable of outshining several other primers featured in this list in overall features for the price point. The evercoat high build exteriorprimer works great, is convenient and it sprays very nicely. The Manufacturer says: We provide high-quality putty, primer, and body filler formulations. And, it went on nice, is great for automotive body repair and it is soft.

Lastly, the evercoat highbuild exterior primer is very smooth and it is easy to apply.

Almost all buyers quickly discovered that the primer is suitable to be applied over some plastics. Further, they strongly agree that the primer can apply paint directly over this or apply additional primer like a urethane material. And, they strongly agree that this primer fills 80 grit scratches without shrinkage and no other primer will.

Top Customer Quotes:

This is the next best thing to coating an entire rough panel in plastic filler.
It is best to shoot some 2k urethane primer over the poly.
This is designed to be sprayed in conditions from about 65 degrees to 100 degrees.
Excellent foundation primer: convenient primer surfacer for any paint system.

Best For Body Filler: Por15 High Build Exterior Primer

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Not everyone likes to purchase primer for their daily purpose, but the Por15 High Build Exterior Primer would be an anomoly. In addition, it is trusted by diy & professionals. Spray or brush on one or two covering coats of por. Lastly, the por15 high build exterior primer is sensitive and it dries fast.

Also, a few also found that this primer etches the metal ( somewhat like phosphoric acid ... their " metal prep " ) giving better coverage with less rust bleed through. In conclusion, buyers found this to be one of the best primers for daily purposes.

Why We Like This:

Try some for your next project.
15 high build primer and allow 10 to 15 minutes between coats.
Manufacturer says: 15 We strive to bring the ultimate in rust prevention.
15 high build primer is a single component formula that fills in minor imperfections.

Best For Bare Metal: Custom Shop High Build Exterior Primer

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The custom shop high - buildexterior primer is specially designed for your regular usage and has all useful features. The custom shop high - build exteriorprimer offers superior sanding characteristics and excellent topcoat gloss holdout. And a low 2.1 voc that can be used coast to coast. And, this 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 primer formulation contains a rich blend of anti-corrosive additives to achieve maximum defense against rust and corrosion while adding the benefit of outstanding adhesion. Most importantly, the Custom Shop High Build Exterior Primer is suitable for industrial applications, is free and it is industrial.

In conclusion, for most buyers, Custom Shop product was the most suitable.

Why We Like This:

This offers easy high build properties and is a fast dry product.
It is easy to sand in as soon as 3 hours.
This is available in primer gray with 1-1/4 quart and 1-1/4 gallon kits available.
This is great as a DTM primer with an easy 4 to 1 mix ratio.

Best For Plastic: U-Pol High Build Exterior Primer

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U-Pol has been making great primers for years, thanks to a combination of clever design and appropriate materials. The U-Pol High Build Exterior Primer can be air dried, low - baked or i.r. Hs high - built urethane primer with a 4 to 1 mixing ratio. Moreover, the primer comes with a standard (60 to 95ºf) temperature hardener.

The primer has a good gloss holdout and it is designed for a great price. Further, the primer has excellent film build and surface levelling properties. Finally, the u-pol highbuild exterior primer sands easily, is good for hiding power and it is compliant.

One customer says - "2.5 parts reducer made an excellent sealer. ". Almost all customers agree that the primer is easy to sand but needs a day or more to cure “air dry” direct to metal adhesion worked very well.

Customers discovered that getting a clearcoat super high gloss, along with primer is useful.

Why We Like This:

It’s definitely high build primer filler for spot repairs.
This can be used as a multi-role 3 in 1 coating.
This offers excellent opacity and it is convenient.
(2.1 voc) high solids high build urethane primer kit.

Best For Fiberglass: Eastwood High Build Exterior Primer

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Best part: Eastwood high build exterior primer costs comparatively cheap and it is available to ship in 24 hours. The Eastwood high build exterior primer works great and it sands easily. The 2-component polyester primer/surfacer has excellent filling characteristics and superior adhesion to steel, aluminum, fiberglass, SMC, oe finishes, self-etching primers and body fillers. This sprayable high - build primer / surfacer serves as an excellent base for any paint system. Finally, the Eastwood High Build Exterior Primer is easy to sand with no shrinkage.

In short, many have used the primer for more than a few months without any issues, and it shows no sign of giving up.

Why We Like This:

Sprayable high-build filler is an excellent base for any paint system.
Excellent adhesion to metals, fiberglass, and body fillers.
Lot of satisfied buyers.