Body Fill Question

[aldefed]

Hello,
Is there a reason you would not want to scuff epoxy even though you are under the 7 day window to apply body filler? Just wondering if it is best practice to always sand the epoxy before body filler.
Thanks.

 

[MJM]

.

 

[Chris_Hamilton]

Barry has said there is no need to sand as long as it's within the window. I have never seen the need to as filler over epoxy within the window always feathers out perfectly. And the feather edge won't lift if you try scratching it which indicates a strong bond. If it makes you feel better then go for it, but in reality there is no need.

 

[Lizer]

A chemical bond actually gets you a mechanical bond, so no point to sanding within the 7 day window.

 

[aldefed]

Thanks for the help.