internaughtfull wrote:
Hi,

I had some work done on a wooden porch and some dry rot
was replaced with durham's wood putty. It dried for one day then
was painted with valspar ultra latex. It gets wet and peels.

I repainted it and covered it with plastic to allow for drying but
it still peels.

Can I just scrape this and seal it with polyurethane then use
something like Kilz on it? It is a satin white and a small area
so perfect color matching is not that important. Or does the
peeling indicate something else.

thx,

itchy

The peeling could be the result of moisture intruding from the bottom of
the boards which are likely not painted. Covering the top when the
bottom is adbsorbing moisture won't accomplish much.