SPI Epoxy as Fiber Sealer?

L

LuxCar

Working on my '75 Corvette, I'm taking it down to glass because even the original factory primer is dodgy. Final sanding before priming with SPI epoxy will be with 180 on a DA sander.

While not at all the entire car, there are several areas where the fiber is just barely exposed, so I am concerned that solvents will be absorbed in the glass, then come back later to bite me as bubbles or cracks or impressions.

My plan on this is to go with 4 coats of SPI epoxy primer as the base. It will be sitting for probably months, but when it's time to paint, the plan then is to wet sand with 600, then a single coat of SPI epoxy (thinned) to be used as a sealer/adhesion promoter, and then go right into DBU basecoat and then SPI 4000 clear.

So my simple question is; can I count on the SPI epoxy primer to serve as a dependable primer that will seal the open fiber that exists, like, "forever"?

There aren't enough open fiber areas to justify gel coating the entire car and I'm hoping that the SPI epoxy can offer the performance I need for the purpose.
 
Remember, in addition to what was said above, the SPI epoxy, when fully cured in 90 days, is more durable and more flexible than a gel coat.
 
May want to let that bare vette sit in the sun a few times before epoxy. Previous owners doing patchwork, paintwork or just putting their greasy hands or spilling fluids on an old porous finish will leave residual solvents deep in the glass for years. It will come back through your final paint work. Clean well before epoxy.
 
May want to let that bare vette sit in the sun a few times before epoxy. Previous owners doing patchwork, paintwork or just putting their greasy hands or spilling fluids on an old porous finish will leave residual solvents deep in the glass for years. It will come back through your final paint work. Clean well before epoxy.
That is never a bad idea, in doubt 4 to 5 days
In the sun.
Be about the same as 1.5 too tw2 months inside.
 
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