Linear High Build Epoxy Primer Kit – L-411 (Includes Activator – 5 Quarts Sprayable) Available in Blue, Gray, and Black
Upgrade your bodywork process with the Linear High Build Epoxy Primer Kit (L-411) – the ultimate high-performance, high-build epoxy system from Linear Blocking Tools. Available in three distinct colors—Gray, Black, and
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Haven’t used the high build epoxy primer yet but I like the fact that it’s a all in one product so u don’t need to use any other type of primer, no high build urethane primer or high build polyurethane primer. I’m redoing a new tailgate for my 07 GMC truck & I want the corrosion protection of a good epoxy primer to prevent rust. Also with a built in guide cost in the primer is an added benefit. I believe this primer will save you money overall! A great product !
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Larry · July 1, 2026
45 year body shop owner and ex Spies rep. This epoxy is EVERYTHING advertised and promoted. Exceptional undercoat to work with. Count me in as a lifetime user.
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Tom · May 7, 2026
We put 2 coats of black on the bare metal and top that with 4 coats of Grey. We block it making sure not to go through the black anywhere. So far, this has been a great product.