sealer for MDF?

[BlindSquirrel]

I've been making a bunch of stuff with MDF and using automotive filler primer to get a smooth surface. Am I using the best stuff or is there something better that will get me to this stage faster?

 

[Blaxmyth]

Automotive filler works just fine, but I would recommend first sealing the MDF with Sanding Sealer before putting the auto filler on. The sanding sealer I use is oil-based, not acrylic.

The sanding sealer strengthens the edges of the MDF and stops the telephone-book delaminating that MDF is prone to. You can sand a much sharper edge this way. Then you can use the auto filler to build up low spots, etc.

 

[exoray]

<div class='quotetop'>(BlindSquirrel @ Aug 25 2006, 12:28 AM) [snapback]1306743[/snapback]</div>

I've been making a bunch of stuff with MDF and using automotive filler primer to get a smooth surface. Am I using the best stuff or is there something better that will get me to this stage faster?
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One word Shellac Two or three brushed on coats with a sand between each and you should have nice candy finish, and it dries in about 10 minutes...

 

[BlindSquirrel]

I just happens that I had a can of shellac and it worked GREAT. That's a real timesaver. Thanks guys.