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The Complete Noob's First Project Thread - (No Theme/Name yet...)
Le Chuck:
No need to sand the MDF beforehand but since you've filled some screw holes you need to sand those areas with a 200 grit or so to even them out to the same texture as the bare MDF.
I like rattle can primer, just a preference. Nice even no-drip coat. Let dry, sand with 200 to knock the fuzz off, prime again, sand again. Pick a color. Rattle can is great, so is brush. Nice even no-drip coats, let dry and sand with 300, repeat paint, switch to wet sanding and use a higher grit paper. Lather rinse repeat until you're satisfied or polishing a quarter inch thick layer of paint that looks like glass. Then, if you really want to get froggy you can start clear coating but again, I never do this on MDF. I usually stop at 5 coats including 2 of primer.
PL1:
--- Quote from: Le Chuck on September 03, 2012, 10:04:21 pm ---No need to sand the MDF beforehand
--- End quote ---
One very minor quibble with the above.
I agree that there's no need to sand the already smooth MDF (assuming no scratches), but if there is an exposed cut edge that won't get t-molding or a routed/rounded edge there are probably imperfections to sand.
[/nitpicking]
Scott
walterg74:
--- Quote from: PL1 on September 03, 2012, 08:45:11 pm ---First, start by reading and heeding the wiki and posts by Ond here and here and many others where he shares his wisdom and experience. :notworthy:
--- Quote from: walterg74 on September 03, 2012, 06:55:36 pm ---Wether brush or roller, any particular type I should ask for so I don't get a cheap-o that'll ruin the finish?
--- End quote ---
A foam roller should give you the desired finish, unless you are trying for high gloss.
--- Quote from: walterg74 on September 03, 2012, 06:55:36 pm ---2) Does that apply to MDF too? I though water was a no-no for MDF making it swell up.. (I know wet sanding is not soaking wet, but still...)
--- End quote ---
Water directly on bare MDF = bad.
Water on primer = OK.
Don't sand through the primer to bare MDF and you'll be OK.
Scott
--- End quote ---
Wow.. looks like a lot of reading to do! I'd better get on it ;D
Thanks for the pointers!!
:cheers:
walterg74:
--- Quote from: Hockeyboy on September 03, 2012, 09:09:46 pm ---I love how you are going through and explaining and asking at the same time. Gives some of us some hints for potential "gotcha" moments.
Looking very nice so far - keep it up! :applaud:
--- End quote ---
Thanks for the encouragement, I'll try to keep it up! :)
:cheers:
walterg74:
--- Quote from: Le Chuck on September 03, 2012, 10:04:21 pm ---No need to sand the MDF beforehand but since you've filled some screw holes you need to sand those areas with a 200 grit or so to even them out to the same texture as the bare MDF.
I like rattle can primer, just a preference. Nice even no-drip coat. Let dry, sand with 200 to knock the fuzz off, prime again, sand again. Pick a color. Rattle can is great, so is brush. Nice even no-drip coats, let dry and sand with 300, repeat paint, switch to wet sanding and use a higher grit paper. Lather rinse repeat until you're satisfied or polishing a quarter inch thick layer of paint that looks like glass. Then, if you really want to get froggy you can start clear coating but again, I never do this on MDF. I usually stop at 5 coats including 2 of primer.
--- End quote ---
Thanks for the great advice! I actually did get a couple more sheets of sandpaper, some for wetsanding, so we'll see how that goes...
I like the idea of the spraycan, but just in case, this is what I can get here, is it ok? (I know one of the pics was for plastics so it's not for this...):
All the same brand, first pic seems to be multisurface, comes in matte or gloss white, and gloss black, second pic sems to be the ones for plastic, and the third *seemed* to be specifically for wood (same brand, different origin, probably brazil), and came in grey and white.
What do you think? (and how much would I need for this small cab? Is one can enough for the primer?
Thanks!! :cheers:
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