I was cutting some panels from 3/4 MDF for new kitchen cabinet doors for my son’s kitchen. Midway thru, I ran out of material and went to the local national brand home supply store for another sheet. When I began raising the panels on my router table with a horizontal raised panel bit, I notices some of the cuts were coming out kinda “furry”?
Hand sanding with 120 grit didn’t seem to smooth it out. I immediately assumed my bit was dull and purchased another. Same result. I finally figured out the first supply of MDF made a clean raised cut and the new material was the culprit. My question is, how can I take the furriness out of the cuts before painting? Will primer seal it and sanding take it out? Will I have to but new material and recut the panels? If I do start over, how can I assure I will get the premium MDF that cuts clean? I know this is alot but I’m lost and figure someone has run across this problem before. Tanks in advance.
Jimmy
Replies
All my experience with mdf leads to fuzzy cuts. I have never tried a premium mdf perhaps that would be better. I have read articles where the author recomends sealing the cut edge with various products to smooth before painting, iirc a skim coat of wood putty, or drywall joint compound.
my 2 cents.
Webby
You could try sanding sealer or shellac to stiffen the fibres then sand.
Drywall joint compound is easy, fast, and cheap. Works perfectly also to seal edges of MDF before painting.
David Ring
http://www.touchwood.co.il/?lang=e&id=1
Second the drywall compound suggestion.
Smear very thin coat on with your finger, use putty knife (before compound dries) to remove any excess from corners.
Sands off easily with 120.
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"It is what we learn after we think we know it all, that counts."
John Wooden 1910-
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