Bare metal: etch or epoxy primer? #shorts
Bare metal, and four cans that all say primer. Etch leaves 0.6 of a mil — it bites, but it fills nothing. 2K epoxy is the one whose sheet names a time for body filler over it: 1 hour at 70 °F, and it stays recoatable without sanding for 72 hours. And "sealer" is often not a fourth can at all — Transtar's epoxy is 1:1 as a primer and 1:1:10% as a sealer, on one page.
Full guide, every number from the makers' data sheets: the link above.
The panel shown is an illustration — generated images, labelled on screen, not a real repair. The products are real products from our store, and AutofxMart sells them. Most of these sheets say professional use only: read yours, and its SDS.
In this video
- 0:00 Bare metal: etch or epoxy?
- 0:05 Etch is 0.6 of a mil
- 0:16 Epoxy is the foundation
- 0:31 Same can, two primers
- 0:46 Stick, fill, even out
Shop what's in the video
Transcript
Bare metal: etch or epoxy? Bare metal, and four cans that all say primer. Here's the one that goes on it.
Etch is 0.6 of a mil U-POL and High Teck put etch primer at fifteen microns — six tenths of a mil. Look at the sanding scratches. It bites, but it doesn't fill anything.
Epoxy is the foundation Not one etch sheet we read names a time for body filler. Transtar's epoxy does: one hour at seventy degrees. Filler, bodywork or a wait? Epoxy. And it's sandless for seventy-two hours.
Same can, two primers And the one nobody reads out loud: that same can has two sets of directions. One to one is the primer, plus ten percent reducer, it's the sealer. So check the mixing box before you buy a fourth can.
Stick, fill, even out Stick to the metal, fill the scratches, even out the base. In that order. The full guide is linked below. Comment which primer is in your hand.
AutofxMart: paint mixed to the code and body shop supplies, shipped from South San Francisco. Video by Upshift.
