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Applying Basecoat After Epoxy Primer


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#1 Ades minster

Ades minster

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Posted 03 September 2019 - 12:55 PM

My mini has been coated in epoxy primer by myself after undergoing restoration, seam sealed and then coated with another epoxy. The finish has come out really well and after blocking back to 600 grade paper the finish is nice and smooth and straight!
My question is can my coloured basecoat be applied straight over the epoxy or do I need to apply a normal primer for better adhesion.
I understand the recoat times for the epoxy and if out of the window it will need keying back first which is no problem.
I have emailed the manufacturer of the epoxy but have not had a reply yet!
Thanks

Edited by Ades minster, 03 September 2019 - 01:07 PM.


#2 bluedragon

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Posted 03 September 2019 - 07:12 PM

For most epoxy primers, you can topcoat with paint right over the top. If you're satisfied with the smoothness of your epoxy primer coat, no problems.

 

You don't need to apply a different primer for adhesion - the paint will stick as well or even better to the epoxy if within the chemical recoat time, and the paint is chemically compatible with the epoxy (for example, a cellulose paint will not chemically link with an epoxy under any circumstances, it will only have the usual mechanical bond.)

 

 

Dave


Edited by bluedragon, 03 September 2019 - 07:12 PM.





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