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Really a 'finishing' question, not a routing question, but ask the experts…
Problem: Painted letters are blistering.
This is my first try at making signs – two slabs of very dry cherry cut from same stump a few year ago.
Cut letters into wood 3/16” and sprayed with Rustoleum Gloss Protective Enamel. Two coats and although I tried to be 'thin' it did seem that paint got thick on bottom of cuts. Sanded off surface, brushed on 2 coats Zinsser clear coat then 4 coats McCloskey Marine Spar Varnish.
Very happy with finished signs for my first run, however after putting them outside (40-50F and rainy) for about a week the blistering on letters appeared. The finish on the bare wood is just fine.
Pictures of the two signs and closeup of a blister attached.
Any thoughts on what went wrong and what I should do different next time?
Problem: Painted letters are blistering.
This is my first try at making signs – two slabs of very dry cherry cut from same stump a few year ago.
Cut letters into wood 3/16” and sprayed with Rustoleum Gloss Protective Enamel. Two coats and although I tried to be 'thin' it did seem that paint got thick on bottom of cuts. Sanded off surface, brushed on 2 coats Zinsser clear coat then 4 coats McCloskey Marine Spar Varnish.
Very happy with finished signs for my first run, however after putting them outside (40-50F and rainy) for about a week the blistering on letters appeared. The finish on the bare wood is just fine.
Pictures of the two signs and closeup of a blister attached.
Any thoughts on what went wrong and what I should do different next time?
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