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Painting MDF?

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crashwg:

--- Quote from: neuromancer on November 19, 2004, 10:35:22 am ---
--- Quote from: fredster on November 19, 2004, 10:01:57 am ---I agree. You should prime it and sand it first, that will help the final finish.


--- End quote ---

It seems like it would be easy to mess up MDF by sanding it. The paper part, that is...

Bob

--- End quote ---

MDF is nothing but paper fibers so which part exactly are you talking about?

Sanding MDF is fine BTW and should be done before you apply the primer.  I recomend a random orbital sander.

neuromancer:
I was thinking specifically of the paper laminate on the faces. It is very smooth as it is yet still has tooth, so why sand it? What grit do you use? I would understand sanding the edges if you had tool marks, but otherwise I don't see much point to that either.

I've read a variety of articles in magazines on painting MDF and I don't recall any of them mentioning sanding, but maybe I just didn't read close enough.

Bob

Shape D.:
the paint will stick better if you sand it, don't use anything rough on it. a light grit will work fine.

neuromancer:
I got to thinking about this a little more when I looked at the sheetrock in my house and realized that the paper coating on it is essentially the same as the paper coating on MDF.

Bob

dmsuchy:
I don't think MDF has a paper covering like drywall, it's basicly very fine saw dust that is pressed together under huge pressure, which is why it has that weight to it.

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