Painting Mdf Board Edges. The moisture from ordinary paints is soaked. A good tool that you can use to sand mdf is an orbital sander.
MDF Rolled edge Window board, (L)2.1m (W)494mm (T)18mm from www.diy.com
Once you have the cut edges of the board done, you can use the same process on the other mdf surfaces. When sanding mdf, pay closer attention to the edges of the board, especially the edges you have cut because they tend to be rougher than the faces. The surface of mdf, despite it’s density, is very porous.
Make Ensure To Seal The Edges Properly.
(i don’t do this as i think it’s too many extra steps…but it’s an option.) go ahead and prime the entire piece, edges and all with water based primer and let those fibers swell. The edges of mdf boards have the nature to absorb paint heavily. Allow this coat to dry leaving your roller, brush and paint tray in a plastic bag to stop them drying out.
Once You Have The Cut Edges Of The Board Done, You Can Use The Same Process On The Other Mdf Surfaces.
Painting mdf can be a real chore. Apply joint compound to the edges of the mdf board. First, you have to rub the compound onto the edge evenly, wiping up any excess as needed.
The Surface Of Mdf, Despite It’s Density, Is Very Porous.
Your compound application doesn’t have to be perfect. Once you have a dry, evenly sanded coating, you can apply the primer. I have used it to harden the edges and make them more robust.
Seal Mdf Edges Which Are Most Absorbent.
Especially trying to paint the edge of mdf. A good tool that you can use to sand mdf is an orbital sander. You need a workbench that is neither too rough nor too smooth to get the best sealing results before painting.
Wear The Appropriate Safety Equipment When Sanding.
Sanding sealer and polymer filler soak up paint at slightly different rates. Dab paint into the detail and then brush out for a thin even coat. Closeup of mdf fibres that make up the medium density fibreboard.
