Timing of sealer, seam sealer, top coat

[Too Many Projects]

New to this paint thing. Painting the underside of the entire floor. I have 2 quarts 2k epoxy. I plan to reduce 1 quart to use as a sealer. Should I let that set for 24 hours, then seam seal with Crest spray-able but applied with a gun and let set for another 24 hours. Crest claims it can be painted immediately but I can wait up to 5 days. When should I spray the second quart full strength as the primer ? I plan to spray the top coat right after the primer has time to flash off. At this time, I'm leaning towards S/W Dimension urethane, as I want it in a matching color to my frame.

 

[Barry]

let epoxy set 24 hours would be great and overnight would work also, as for the seam sealer, i would let set a day to be safe since you have a 5 day window.
Not questioning the paint choice but is this a restro or car of value? Research can be good sometimes.

 

[chevman]

I'm a little confused here. Are you saying that you plan to use reduced epoxy on the floor first, then use unreduced epoxy before the topcoat?

 

[Too Many Projects]

I'm a little confused here. Are you saying that you plan to use reduced epoxy on the floor first, then use unreduced epoxy before the topcoat?

I thought that is what I had read to do. Use the epoxy reduced first as a sealer and then add coats of un-reduced as the primer. Not right ?

Barry, is there a problem with the paint choice ? I'm just trying to find a single stage that can be mixed to a specific GM paint code. SW also recommended Genesis but it's twice the cost and for the bottom of the car, I didn't see any value in that.

 

[chevman]

When should I spray the second quart full strength as the primer ?

Unreduced epoxy is used on bare metal because you need epoxy's full strength to hold tight to the bare metal. Reduced epoxy is used as a sealer before paint.