Can epoxy primer be sprayed over self-etching primer (without ill effects)?
#1
Honda-Tech Member
Thread Starter
Can epoxy primer be sprayed over self-etching primer (without ill effects)?
Sorry, this is probably a noob question, but should epoxy primer be laid down first, onto the bare metal, or is it safe to spray on top of self-etching or even filler primer?
#2
Honda-Tech Member
Join Date: Oct 2012
Location: 98271
Posts: 126
Likes: 0
Received 0 Likes
on
0 Posts
Re: Can epoxy primer be sprayed over self-etching primer (without ill effects)?
It's fine to spray epoxy over self etching. But self etching is mainly to slow down rust before you lay down your filler or other high build primers. If you do have a rust issue I would start by eliminating the rust issue ahead of time. Self etching primer may slow down the process of rust but it will not stop it. Self etching primer has phosphoric acid and zinc in it that just slows it down.
I guess where I'm going with this is if you have the need to use self etching primer I would evaluate your situation a little closer and deeper. Possibly scab in a new panel.
But to answer the above question, yes. You can spray over a self etching primer with an epoxy primer.
I guess where I'm going with this is if you have the need to use self etching primer I would evaluate your situation a little closer and deeper. Possibly scab in a new panel.
But to answer the above question, yes. You can spray over a self etching primer with an epoxy primer.
#3
Re: Can epoxy primer be sprayed over self-etching primer (without ill effects)?
Epoxy will work on any surface you need to read there P sheets to see how to get the product stick to the old surface and what sandpaper to use. I would say 80-180 grit will be needed i order for it to stick.
#4
Honda-Tech Member
Join Date: Sep 2011
Location: Western NYS
Posts: 1,137
Likes: 0
Received 0 Likes
on
0 Posts
Re: Can epoxy primer be sprayed over self-etching primer (without ill effects)?
Self etching primer acid-etches the substrate (hence the term self-etching.) Self etching primer is used to provide mechanically and chemical adhesion to the substrate before applying the surfacer. Most surfacers are NOT direct to metal and MUST be applied only over self-etch or epoxy.
Thread
Thread Starter
Forum
Replies
Last Post