Need guidance

cllong1

Promoted Users
Can you guys give guidance on how to proceed with body filler application over SPI epoxy? So everyone is clear of my process, I sanded to bare metal applied U-pol light weight body directly to metal block sanded and then sprayed epoxy. The body filler instructions says apply directly to metal and does not indicate I can apply over epoxy. My plan is to scuff epoxy in certain areas and apply more body filler, block sand, and hit with 2-3 coats of slick sand, block sand and then apply couple of coats of epoxy as a sealer. Please help i posted pics below my 72 c-10 project
 

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Last edited:
Either way is fine, insurance shops apply over bare metal.
Restoration shops apply over epoxy.
No bodyfiller says apply over epoxy
As some epoxys won't accept filler
And the filler companys have no way of knowing about every epoxy made.
 
Lots of knowledge listed in forum & homepage here can take presidence over some instructions from manufacturers.
There is also many times better & best, as in epoxy over filler on bare metal is better than 2k over bare metal, but epoxy best as first step on raw metal. Many fillers do have something that's supposed to count towards rust protection, but especially in damp environments & in prolonged times getting bodywork done, contamination can go back to metal & eventually potentially cause problems later. Sealing metal eliminates this what if. Just follow the time frame windows AND temperature guidelines listed for the epoxy.
 
Lots of knowledge listed in forum & homepage here can take presidence over some instructions from manufacturers.
There is also many times better & best, as in epoxy over filler on bare metal is better than 2k over bare metal, but epoxy best as first step on raw metal. Many fillers do have something that's supposed to count towards rust protection, but especially in damp environments & in prolonged times getting bodywork done, contamination can go back to metal & eventually potentially cause problems later. Sealing metal eliminates this what if. Just follow the time frame windows AND temperature guidelines listed for the epoxy.
 
Either way is fine, insurance shops apply over bare metal.
Restoration shops apply over epoxy.
No bodyfiller says apply over epoxy
As some epoxys won't accept filler
And the filler companys have no way of knowing about every epoxy made.
Thanks Barry glad you chimed in, its been 7 days I wanted to let my epoxy cure and I’m in no rush to do job properly just wanted to make sure I wasn’t going down the wrong road
 
Lots of knowledge listed in forum & homepage here can take presidence over some instructions from manufacturers.
There is also many times better & best, as in epoxy over filler on bare metal is better than 2k over bare metal, but epoxy best as first step on raw metal. Many fillers do have something that's supposed to count towards rust protection, but especially in damp environments & in prolonged times getting bodywork done, contamination can go back to metal & eventually potentially cause problems later. Sealing metal eliminates this what if. Just follow the time frame windows AND temperature guidelines listed for the epoxy.
Thanks for the info
 
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