Quote:
Originally Posted by BIGmouthinDC 
The biggest problem with MDF is the edges, If you will have exposed edges I still like the Sanding sealer, Apply, sand, Apply sand, Prime, sand, Paint, Paint. Sometimes some wood filler needs to be added to the process depending on how well the boards were cut and assembled. On the Speaker builder forum a lot of the guys use Bondo on the edges and seams then sand and finish.

The biggest problem with MDF is the edges, If you will have exposed edges I still like the Sanding sealer, Apply, sand, Apply sand, Prime, sand, Paint, Paint. Sometimes some wood filler needs to be added to the process depending on how well the boards were cut and assembled. On the Speaker builder forum a lot of the guys use Bondo on the edges and seams then sand and finish.
now i am starting to see why some people apply molding to the exposed edges.... so if you bondo the edges then can you just use a primer? maybe i am understand this wrong but is the main reason for sand and sealer for the exposed edges/cut edges does the flat part of the mdf take primer and paint without issue?





















