When should you not use etch primer?

When should you not use etch primer?

WHEN SHOULD THEY NOT BE USED? When corrosion protection in coastal environments is required, etch primers are not adequate. A zinc-rich primer should be used as part of a heavy-duty, high build, two-pack system.

Do you need to prime over etch primer?

As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. We suggest using a Urethane Primer over the self etching primer as a barrier between the self etching primer (Do not use Epoxy over Self Etch).

How do you mix 2K etch primer?

  1. 2:1 (by volume) Concept.
  2. 2K Etch Primer. Concept.
  3. 2K Etch Catalyst. 2 parts.
  4. Reducer. Concept 2K Thinner, if required.

Do you need to sand before etch primer?

Do You Have To Sand Self-etching Primer Before Painting? Sanding the self-etching primer is not recommended by most manufacturers, as it is based on acid. As a reminder, self-etching primer is primarily an acid base with pigments added, so you should wear a mask when applying it.

Can you paint straight over etch primer?

You can’t paint directly over etch primer. You need a surfacer or other primer/sealer over it.

How long can you leave etch primer before painting?

Most primers should sit on a car for around 24 hours before applying the base coat of paint. Some primers may dry in as little as 30 minutes, but experts say to apply the primer 24 hours before painting for the best results.

Can I paint straight over etch primer?

How long after etch primer can I prime?

The can says you must wait “at least 30 minutes.”

What is the Mixing Ratio for etch primer?

1: 1
Primer consists of two Packs, one is Base & another called Hardener. 3. Mix the desired quantity of Base & hardener (Mixing Ratio is 1: 1 Base to Hardener by volume). 4.

How long can I leave etch primer before painting?

Can you spray 2 pack over etch primer?

You can spray paint directly over it. Most 2K high build primers are not even supposed to be used over bare metal- meaning acid etch or epoxy has to be sprayed first over the bare metal before 2K high build primer can be used.