[HTFreak]

I made a component rack out of MDF and I put 3 layers of primer on it (Kilz Oil Based) and I now want to paint it black.

What level of sand paper should I run the Orbital Sander on the last layer of Oil Based primer that I used?

Also, what kind of paint should I use as far as oil based or "primer and paint all in one" or "water based" (I want to paint it black and I am going to use Cigar Foam paint rollers to paint it black)??

Thanks!

 

[Gymschu]

I think you overKILZed with the primer. One coat of primer is usually sufficient. The orbital might be a bit too aggressive for sanding. Use a 1/4 sheet palm sander with 220 grit. You can use oil or latex paint for your topcoats. As far as the foam roller, I am not a fan. It holds very little paint and will leave skid marks in your finish if you're not careful. A Whizz roller with a mohair roller sleeve leaves a nice finish. You can also use a regular Whizz roller sleeve, because the mohair can act a lot like the foam roller.......it holds very little paint.

 

[ToolSeeker]

Just our of curiosity why in the world you ever use 3 coats of oil based primer? Paint and primer is a joke just ask the salesperson what percentage is primer. Paint and primer is water based. And for sanding all you want to do is scuff the surface and as Schu said foam rollers really don't work.

 

[cdaniels]

I like oil primer on MDF but not Kilz and not 3 coats. 220 on a palm sander top coat with 2 coats of high quality acrylic. Semi-gloss would be my choice.