Epoxy primer

[2nd chance cobra]

So, a couple days have past since I primed my front end. It was an epoxy primer. Arnold motor supply store brand. Maybe ppg, as they carry ppg and omni also. Any hoo, it has a very textured finish, which is no worry with some wet sanding. Interweb searches seem to confirm the texture surface. I mixed per label 4.1.1/2. Last coat I even overthinnned a bit, no change. All will be OK I think I'll just have to wet sand before topcoat again. Lots of opinions on this out there

[wraithracing]

The texture of any sprayed paint or primer can depending on the type of paint/primer, the gun you are spraying with, the size of the tip/orifice you are using, and the mixing ratio.

High Build primers often have more texture due to the thickness and build properties of the primer.

Using a gun or a tip/orifice that is too small for the thickness/heaviness of the material will cause more texture due to the material not atomizing as well.

Using a mixing ratio that is light on reducer/thinner will cause more texture as again the material is thicker or heavier bodied and can't flow out as well as a base coat or clear coat may be able too.

If your mixing ratio is 4 to 1 to 1/2 that generally is a high build or heavy bodied paint/primer and will not flow out as much. The only way to get a smoother texture is to use a larger gun/tip/orifice. Many high build primers recommend a 1.8 tip or larger. I generally try to spray those types of primer with a 2.0 or even a 2.2 tip when possible. That allows you to spray the material and get as good an atomization as possible.

Hope that helps! Good Luck!

[dagenham]

Good luck sanding epoxy primer. I hope you have a lot of good sandpaper because it will fill up in a hurry. That was my experience with it. And yes it was PPG too.

[79mustang]

Ive used kirker epoxy primer and it sands very easily.