What is the best primer sealer for MDF?

Zinsser B-I-N White Shellac-Based Interior/Spot Exterior Primer and Sealer Is what I find works best.

I originally purchased this to use for a white base to make the color pop. Previously I use white acrylic paint on top of shellac. It worked pretty good but using the shellac based primer I get a white base and sealer in one step.

Shellac is compatible with just about any finish. It will seal pine knots. This primer is used for a sealer when repairing smoke damage after a fire.

I just did a test on an MDF Play Pal minivan. One coat was all it took.

I get it at Home Depot in the paint department.


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