Touching up prefinished edgebanding and prefinished plywood corners

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Forum topic by kimurak posted 03-29-2016 02:59 PM 502 views 0 times favorited 1 reply Add to Favorites Watch
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1 post in 970 days

03-29-2016 02:59 PM

I’ve seen many posts touting the use of prefinished plywood for cabinet boxes and prefinished edge banding. I’ve used both successfully for bookshleves. My question is about trimming and easing the corners after applying edge banding. I’ve eased the corner with 220 sandpaper and left it as is.

I’m about to build cabinets for a mudroom where the cabinets may get exposed to more moisture than bookshelves would. I’m worried about moisture getting into the plywood where the edgebanding corners have been eased and swelling the plywood. I’d much prefer to use prefinished because I’ll be drilling indexed shelf pin holes. These are best drilled (I use Festool’s 32mm router system) after the polyurethane is applied (as to not fill in the holes), but before the boxes are assembled (because I use a long guide).

Will brush applying ployurethane to the corners and touching up stick to the prefinish? I’m concerned that it may flake off.

Any experience anyone?

1 reply so far

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2925 posts in 1479 days

#1 posted 03-31-2016 12:10 PM

If the prefinish is poly you should be able to just lightly sand and apply more coats.
I would think a good marine varnish would be adequate.

-- Everything is a prototype thats why its one of a kind!!

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