Epoxy primer full cure time

O

OldYoungMan

How long should I wait before the epoxy is cured enough or hard enough that I can proceed with assembly fenders doors ect. without risking chipping or damaging the primer. I've read the spi epoxy fully cures in 60-90 days in another thread but also mentioned if the truck sits in the sun it can speed the curing process up substantially. After the 7 day window is it tough enough? Just looking for some clarity.

Just to clarify I've searched this topic on this forum fairly extensively and haven't come up with a concrete answer. I've recently finished spraying 2 coats of black spi epoxy primer, filler and seam sealer over the epoxy followed up with another 3 coats of epoxy primer that was induced overnight for the maximum uv protection as this truck will be driven for a bit while I finish it . Truck has been kept at 75 degrees throughout the process. Happy with the products and how it sprayed using a Turbine system.


Cheers!
 
One day in sun is equal to 7 to 11 days in shop.
So one full day of sun and you can start putting together.
 
If you are worried about chipping the edges during reassembling (easy to do no matter how hard you try not to) I recommend to go to the local windshield shop and get a few feet of the edging that comes with new windshields. The place by me handed over 8 feet free when I explained I wanted it to reassemble a classic car. That formed rubber edging slides and holds well on sheet metal edges and offers excellent protection while handling, and it pulls off easily when done. Plus, you can add cuts for sharp bends.
Attached is a picture of a small section.

Mike
 

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