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Prepping the edges of MDF before painting

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Forum topic by thedudeabides posted 11-05-2009 12:23 AM 1298 views 1 time favorited 4 replies Add to Favorites Watch
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thedudeabides

75 posts in 2604 days


11-05-2009 12:23 AM

I’ve always just slopped on joint compound, sanded it smooth and then painted the edges, but I’ve heard there are multiple ways to prep the edges of MDF board before priming and painting. What do you guys normally do?


4 replies so far

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papadan

1174 posts in 2831 days


#1 posted 11-05-2009 12:31 AM

I just use a thick primer.

-- Carpenter assembles with hands, Designer builds with brains, Artist creates with heart!

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Gene Howe

8251 posts in 2892 days


#2 posted 11-05-2009 12:35 AM

MDF can be had in different grades. The best will only require primer. Others may need the filler.
Inspect it before you bring it home. BORG stuff usually requires filler.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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Gene Howe

8251 posts in 2892 days


#3 posted 11-05-2009 11:08 PM

blaine,
Never heard of that stuff. Where do you find it?

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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CharlesNeil

1610 posts in 3334 days


#4 posted 11-05-2009 11:24 PM

one of the best MDf, edge sealers is BIN by Zinnzer , it is a white primer and shellac based , i usually quick sand the edge with some 320 just to cut bown the fuzz, then apply 2 coats of the BIN, and scuff sand with some 320, the shellac based primer seals super well, for a clear i use seal coat, also shellac based, most of the box stores carry it, i know Lowes does…

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