The 6 Best High Build primers For Fiberglass (2023 reviews)

If you are looking to buy an all-around great primer for your daily purpose, evercoat great primer is the right option. This product sands easily and is great as part of the finishing process. It is basically a sprayable plastic filler and it does a very nice job of sealing off wood grain, rough fiberglass, and very rough body work if you need it to. It will sink into 1/4' holes and runs, so you just have to sand down and Presto. It is great for fiberglass or any automotive body work that needs a lot of sanding detail work.

It mixes to a nice consistency, sprays very nicely. It is suitable for dtm, direct metal application.

Why We Like This:

Grit sanded painted/bare metal, fills fast, blends well
Worked well with even a crappy leaking harbor freight gun
Easy to sand and cover nice
Sand repair area and featheredge using 180 grit, 220 grit and finish with

Best For aluminium: Eastwood High Build Primer For Fiberglass

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Compared with other primer in this category, the eastwood high build primer for fiberglass has a convenient design. Eastwood's 2k epoxy primer aerosol allows you to paint with the durability and precision of a two-component coating without the paint gun. It comes with an in-house product design, development and testing and a strong track record of high-quality, innovative products.

Apply this automotive aerosol gray primer on car body panels, aluminium, steel, or fiberglass to create a durable finish, and to effectively prevent rust. The innovative nozzle and valve technology, combined with its two internal chambers, ensure the right ratio is mixed every time. It sprays evenly and has a nice wet edge.

The Eastwood 2k epoxy gray primer features a 2 component formula containing the premium eastwood gray epoxy paint, and the 2k activator formula. It is a must to seal and prime anything before base coat.

Why We Like This:

Most durable aerosol epoxy primer available
Good brand reputation

Best For Automotive vehicles: Custom shop High Build Primer For Fiberglass

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate primer. The custom shop high build primer for fiberglass is exactly that - it's a simple primer that hits all the right notes. 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:

Lot of satisfied buyers
Delivers what they promise

Best For holding down troublesome repairs: Evercoat High Build Primer For Fiberglass

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate primer. The evercoat high build primer for fiberglass is exactly that - it's a simple primer that hits all the right notes. This polyester primer is compatible with waterborne paint and VOC. It is ideal for holding down troublesome repairs on a variety of substrates.

Why We Like This:

Uses patented technology to provide a smooth, low-texture finish
Delivers what they promise

Best For Body Filler: Custom shop Ideal Primer

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Custom Shop makes beautiful and great primer with classic and smartly choosen materials. 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 is ideal primer for automotive vehicles, fleet, industrial products, and oem manufacturers.

Why We Like This:

Lot of satisfied buyers
Good brand reputation

Best For plastic: TP Tools High Build Primer For Fiberglass

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The tp tools high build primer for fiberglass is capable of outshining several other primer featured in this list in overall features for the price point.

Why We Like This: