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Pianting routed MDF doors.

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Forum topic by WOODIE1 posted 539 days ago 808 views 0 times favorited 4 replies Add to Favorites Watch
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WOODIE1

77 posts in 881 days


539 days ago

Ok I made 2 mistakes, one not making my own real wood cabinet doors and another was picking doors that have a routed raised look. I have bought pre made routed shaker style doors and they came out perfect but the Co I used did not make that style.

My method of painting is to use Zissner primer, GF milk paint and a GF clear. I love that the low build of the milk paint that makes it look almost sprayed but still have that old charm.

Problem is even using the Oil based pigment primer on the raised portions created fuzz. Actually the CNC was a bit rough and not smooth to begin with. I figured the primer wood cover it. It actually made it worse.

This is a fairly detailed profile on 25 doors. Is there a high build primer that would cover without sanding too much? They are MDF so sanding also deforms the profile.

I have heard glue mixtures, thinned drywall compund, brushed DAP Alexplus, etc, etc???

I can’t imagine these door co’s are had sanding each profile as they only charge $8 to prime which I would have gladly paid but they shipped raw by mistake vs priming first.

Anybody have experience in doing this type of door??? As usual any help is greatly appreciated.

Thanks
Brian


4 replies so far

View Bobmedic's profile

Bobmedic

302 posts in 1404 days


#1 posted 538 days ago

I have always either used a glue size or drywall spackle. Both seemed to work well. MDF is like a sponge anything wet and it will swell so you have to seal it somehow. I suppose there wouldn’t be anything wrong with using shellac to seal the profiles and give them a quick touch up sanding afterwards. The shellac will dry quickly and provide a good seal.

-- Save lives, ease suffering, reduce morbidity and mortality, stomp out pestilence and disease, postpone the inevitable, and fake compassion. The Paramedics Creed

View RogerInColorado's profile

RogerInColorado

286 posts in 556 days


#2 posted 538 days ago

I’ve never NOT had to sand after primer on any wood (or MDF). There are always whiskers, even with shellac or lacquer and they have to be cut off before the next step. No exceptions. If anyone has a primer that eliminates this step, I hope they share it.

View Cosmicsniper's profile

Cosmicsniper

2199 posts in 1760 days


#3 posted 538 days ago

Yep, i’d use the shellac as a sanding sealer.

-- jay, www.allaboutastro.com

View WOODIE1's profile

WOODIE1

77 posts in 881 days


#4 posted 538 days ago

Thanks for the tips but honestly half the issue is the Co I used to make the doors. There are tool marks throughout the panel and the corners look like a 5 year old cut them. Some are round, some are square and some are almost right.

The routed portions must have been done with a dull tool as there is just too much raised fuzz. I took a razor blade and scraped all the sections by hand before priming the rest. Honestly the Zissner oil based did a worse job then the water base. Sherwin williams bare wood did the best and was the easiest to finish sand.

It was something I didn’t want to do but I just sanded for hours and got it done. They look ok but the worsed is the corners have some rough edge which to me is a sign of a bad job which sucks after all the work on them.

I had ordered from Barker before and the doors were simply wiped offed, primed and painted so I know it isn’t the MDF or me. Oh well live an learn, next time Barker!

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