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Mutantmoose
01-02-2016, 10:05 AM
Just got finished making some tenor uke molds out of MDF, I took my time to make sure that they are symmetrical, and nicely curved.
I know I need some kind of finish on there, is there any particular finish I should consider? Poly, shellac, varnish?

Thanks,

Mark

Allen
01-02-2016, 05:31 PM
Any of those choices will work. Personally I use lacquer but I'm set up to spray, so that's the easiest for me.

Beau Hannam Ukuleles
01-03-2016, 08:14 AM
i buy a tin of polyurethane satin to seal my jigs, mdf or ply. MDF soaks up alot of this stuff. I rub it on with a scrap of old t shirt etc. (wearing gloves)

http://www.homedepot.com/p/Minwax-1-qt-Satin-Fast-Drying-Polyurethane-63010/100201939

Mutantmoose
01-03-2016, 04:07 PM
Thanks! I'll go with poly. I have some extra sitting around that should be fine. Thanks for the heads up about MDF - that stuff is pretty thirsty!

ksquine
01-04-2016, 07:24 AM
Why do you want to finish it? My molds are just bare plywood

Beau Hannam Ukuleles
01-04-2016, 07:29 AM
Id totally recommend sealing radius dishes so the radius don't change due to humidity (ive seen humidity badly warp a $100 dish)

i poly seal my molds so glue sticks less to them

Mutantmoose
01-04-2016, 04:16 PM
I want to make sure that glue doesn't stick, and I suspect that some poly will harden the mdf, which could really use it in that direction.