self etching primer on aluminum
#2
Member
Re: self etching primer on aluminum
how much body filler?
will it be immediately primered? Or sit for a while?
if going to sit, id epoxy prime it, then do your body work when youre ready
will it be immediately primered? Or sit for a while?
if going to sit, id epoxy prime it, then do your body work when youre ready
#3
Member
Re: self etching primer on aluminum
etching primer has gone the way of the dodo bird, its old tech and really of no use, two part epoxy primer is best , its strong and it doesnt absorb moisture like other primers.
#4
Member
Re: self etching primer on aluminum
Self etching primer is far from obsolete, Its used almost exclusively in collision repair shops. It does absorb moisture but its purpose isn't to keep it out, thats the job of the topcoat.
#5
Member
Re: self etching primer on aluminum
Any repairs that are made in ANY shop that hits metal, needs to have etching primer sprayed before primer. And you don’t epoxy prime something unless that thing is guna sit for a while like most everyone’s builds. If you are actually working on it, etch primer, high build, block, repair hig/lows, high build primer, block, 2 mid coats of primer, wet sand, base, clear. Sand buff, or respray clear, sand buff.
#6
Member
Re: self etching primer on aluminum
No, you cannot use body filler over etching primer. The acid can attack the filler. Use epoxy, or filler then etch.
#7
Member
Re: self etching primer on aluminum
I've worked several restoration shops and a dealer collision center and No one used etching primer at all.
alot of 2k urethane primers have a etching agent in them and also are corrosion resistant i am fond of ppg ncp 271. but if you just want to protect it from corrosion for a period of time and are going to do any filler work on the part than go with an epoxy primer. bodywork over properly prepared epoxy primer is good, body work over etching or urethane primer no good.
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