Rust-Oleum® Self Etching Primer is designed
to prepare bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the topcoat finish
. Self Etching Primer is a rust preventive coating that etches and primes in one coat.
What does self etching primer do?
What Is Self Etching Primer? Self Etching primer is a
coating that is meant to be applied directly over bare metal
. … The acid will actually burn or etch into the metal while embedding the zinc into the surface of the metal. This ensures good adhesion and rust prevention.
When should I use self etching primer?
After you remove the rust scales from the metal on your car
, you need to apply self etching primer. It’s a mix of phosphoric acid and zinc. The way it works is that the acid forces the zinc into the top of the metal. It’s purely a surface coating, and it doesn’t stop the rust.
Is etching primer necessary?
Etch primer
is good but not necessary as long
as you get rid of the light rust first.
Can you paint directly over etch primer?
You can’t paint directly over etch primer
. You need a surfacer or other primer/sealer over it.
What is the difference between self-etching primer and epoxy primer?
Self etching primer
bonds well to bare metal surfaces
and can be top coated in a short period of time. Epoxy primer can be applied in heavy coats which can be guide coated and block sanded to remove small imperfections in the body. Epoxy primer takes longer to dry (cure) before it can be sanded or top coated.
What is the difference between self-etching primer and filler primer?
Because it cures quickly, it’s the method of choice for collision shops. But a key difference with etch primer is that
you need to apply your filler or bondo first directly to the metal before spraying it
.
Do I need etch primer on bare metal?
Both Epoxy Primer and Self-Etch primer (Self-Etching primer)
can be used on bare metal. … If you’re doing some body work and you have some bare metal, you don’t want to just put regular primer surfacer because it does not have the corrosion properties like Epoxy or Self-Etch.
Do you have to sand self-etching primer before painting?
However, most manufacturers of self-etching primer, due to the acid base of the products,
don’t recommend directly sanding the self-etching primer
. … It should be noted that self-etching primer is mainly an acid base with pigments added, so you should be wearing a respirator when applying it.
Can you weld through self-etching primer?
These organic binders will burn off during the welding process, leaving a corrosion-
resistant
self-etching primer for paint prep. … Compatible with MIG, TIG and Arc welding. The metal-etching primer will enhance adhesion and durability and is compatible with most top coats.
Can self etching primer be applied to bare plastic?
I would not use an self etching primer on plastic
as it will sink. (it does on car bumpers anyway). Try and get a plastic primer (available in any autoparts store here). Give a VERY light dusting of this (A standard aerosol can can do 4 or 5 car bumpers easy) and let dry.
Can you fill over primer?
Yes you can
, but if the damage is minor, I think you would have better luck with a 2 part glazing putty, like Icing. It sands much smoother than regular body filler, especially if you are filling a very small imperfection.
How good is self etching primer?
5.0 out of 5 stars Finally, a
good, easy to apply
, self etching primer! This primer is the easiest to use self etching primer I’ve found so far and it adheres as well or better than anything else I’ve used for painting bare aluminum. It has a fine spray that goes on far more evenly than most rattle can paints.
What’s the difference between primer and etch primer?
A zinc-rich primer should be used as part of a heavy-duty, high build, two-pack system. Etch primers work by
acid etching
the metal surface. … Whilst the etch primer should be sprayed to ensure a thin, even film, the topcoat can be brushed.
How long after etching primer Can you paint?
DRY & RECOAT
Dries to the touch in 10 minutes and to handle in
15-30 minutes
. Apply a top coat after 30 minutes.
Can self-etching primer be used over body filler?
Yes
.
You can apply self etch over fully
cured filler.
