Plastic hatch painting?

[Bigjer40]

I am not sure if the sliding hatches over the companionway are plastic or fiberglass on my 1984 H27. Anyone paint these before? Looks like the PO tried, but there are major brush marks and they did an awful job.

 

[ggrizzard]

I believe they are frp with gel coat overlay. They can be successfully painted with the right prep and paint choice.
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