What size tip do you use to spray epoxy primer?

A general rule of thumb is: Heavy-bodied primers and primer surfacers work best when you use a nozzle size of 1.7 to 2.2. Basecoats should be sprayed with a 1.4 to 1.6 nozzle. Clearcoats should be sprayed with a 1.3 to 1.7 nozzle.

What kind of thinner do you use for epoxy primer?

Adding 5% lacquer thinner to epoxy reduces epoxy’s compressive strength by 35%. As such, it’s no longer suitable as a structural adhesive. Adding a solvent can extend curing time, making your work unpredictable. Adding a solvent can cause the epoxy to shrink and crack over time.

Does epoxy primer need to be sanded?

If the thinner/reducer rag does not have any epoxy primer transfered to it then the epoxy is “cured” and needs to be sanded.

Is epoxy primer safe to spray?

When an epoxy primer is sprayed and is airborne it should be treated with the same respect as a 2 pack paint. Required Protection: If you’re spraying (or near someone spraying ) epoxy primer then you need full respiratory protection. Check with the manufacturer of the primer to see what you need).

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Can I use epoxy primer as a sealer?

Use it For a Final Sealer – A cool trick we’ve been doing for the past few years is using our epoxy primer as a final sealer before our base coat. Simply reduce it 50 percent and lay a coat or two down to seal up all of your work and have a nice surface to lay your base coat over top of.

Can you put epoxy primer over paint?

You can coat epoxy or urethane primers over old paint. I personally would not, but you can. It won’t craze the paint like spraying laquer on old enamel. But you would really be better off just sanding it down to the factory primer, at least.

Where do you apply epoxy primer?

It can be applied on steel, galvanized steel, aluminum, fiberglass, wood, asphalt, and concrete. Prevents rust and corrosion. The main job of epoxy primer is to protect materials against rust and corrosion. A two-part epoxy primer contains zinc phosphate, something that enhances its corrosion-inhibiting properties.

Can you spray West System epoxy?

Although it is possible to spray WEST SYSTEM ® Epoxy, we strongly recommend against it. Leaving aside the practical difficulties, including equipment expense, the health and safety issues associated with spraying epoxy are enormous. To effectively spray epoxy and obtain a desirable finish, it must be atomized.

How soon can you paint over epoxy primer?

1) recommend waiting 24 hrs before top coating, but depending on temp can be sooner. 2) Up to 7 days after epoxy can topcoat without sanding or scruffing. no additional primer required if the surface is good.

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What is the difference between epoxy primer and urethane primer?

An epoxy primer is what you want to use on bare or freshly sandblasted steel for your maximum adhesion and rust prevention. The urethane primer is what you want to use after your bodywork is done as a filler primer. Epoxy is simply a primer, whereas 2K urethane primers are considered a primer surfacer.

When can you paint over epoxy primer?

The tech sheets for most Epoxy Primers recommend sanding and recoating with more Epoxy Primer after 7 days. Quote: The tech sheets for most Epoxy Primers recommend sanding and recoating with more Epoxy Primer after 7 days. Scuff it and shoot some 2K over it.

Is sanding epoxy dangerous?

Serious health problems can result from sanding epoxy before it is fully cured. When you inhale these dust particles, they become trapped in the mucous lining of your respiratory system. The reactive material can cause severe respiratory irritation and/or respiratory allergies.

Can you spray high build primer over epoxy?

Also epoxy can be used as a sanding filler primer. Some just use epoxy & not 2k. tougher in long run, but slower to dry & build up thickness. So in terms of what you have on hand, you could use up your black epoxy in place of 2k.

How long does epoxy primer take to dry before sanding?

Single coat application can be sanded in 4 hours. For multiple coat applications, allow 16 hours to cure after the final coat, before sanding. If possble, do not wait more than 24 hours to sand, especially with only one or two coats, as the primer will get increasingly harder.

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