2011年8月24日 · If prepping bare metal, P80 grit paper on a DA sander works great. Blow off the panel and wipe it down (as outlined above) before priming. Then you can apply 2 coats of epoxy primer, followed by 2-3 coats of high build primer. If prepping existing paint or primer, P180 on a DA works well, followed by 2-3 coats of high build primer.

2014年8月13日 · Sand/blast to clean bare metal, wax/grease remover (solvent based on bare steel), tack rag and epoxy. You should be able to spray 2-3 good wet coats of primer, and get tonnes of protection out of it. The epoxy primer will break down and fade over time, but not enough to be concerned.

2015年9月26日 · Today's epoxy primers are a great way to seal and protect bare metal. Filler can be applied directly over them however this is not the case with etch primers. As for whether it is better to apply filler directly to bare metal or spray epoxy first and then do filler is a subject that is hotly debated. Either way is acceptable and done regularly.

2011年2月11日 · Well, before I found this place, I stripped the tins for my motorcycle to bare metal.I then filled the dings and small dents they had. Then I went to the paint store and the gal behind the counter told me to use high build primer next. I have now read that I should have either etched or epoxied the metal first.

2008年11月9日 · The kind of thing that's really hard to spot until the primer's on. What I will do is make sure the primer is well cured (it will have been force dried in an oven at 60°C metal temp anyway), then I'll sand most of the thickness out of the area and leave it a while to allow any remaining solvents to get out.

2016年1月27日 · Primer: This is simply a category like saying base coat, all of the below are primers. Etching or Epoxy Primer: This is used as a foundation layer to bare metal. Etch primer is a opaque yellow most of the time, and is put on thin. Seebthrough it is generally how its applied.

2009年7月27日 · I sanded the body down to solid base. Some bare and some primer and paint. Whatever stayed on car that was solid. I them used a 2k epoxy primer and then a couple of coats of 2k urethane high build primer. While block sanding the car, I sanded through at a few spots. I have bare metal and two spots where the old primer came through.

2011年2月12日 · "NOTE: All bare metal areas larger than one inch in diameter must be treated with a high quality self-etch or epoxy primer." Even most "DTM" primers state that for "large" bare metal areas or overall refinish to use an epoxy or etch primer first. DTM is just for small panel repairs so you don't need 2-3 primers just to get to your color stage.

2016年6月21日 · Wait 15-30 minutes for the remaining solvent to flash off before applying your primer. On bare metal you should use either epoxy primer or a DTM (Direct to Metal) build primer. Another choice is an etch primer but be aware you cannot …

2006年10月19日 · If the metal is not prepared properly, IE... sanded with 80 grit, Cleaned, and then primed with epoxy, you may have problems. If you use a quality epoxy primer and apply it properly, it WILL stick to the bare metal. It will also provide a …