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Preparing to Finish
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| Home | If you are going to paint the box, it is suggested that you round the corners over so the paint does not thin and chip at the corners. You must remove any screws, nails, brads, etc. that may interfere with the router bit when this occurs.
All holes and cut edges that will be exposed need to be filled and sealed. Rounded corners look better too. If you are adding a grill, do not round those corners. Cut MDF absorbs paint at much higher rates than the normal surface. Automotive Bondo is the preferred product to use. Sheet rock compound and wood putty work as well, but will require more coats. See "Fine Woodworking" June 2005 edition for more details. The process of creating a fine painted finish is left to other articles. You should be warned that MDF absorbs lots of moisture, so any water based products used on it are apt to raise the grain. I used a sanding sealer to reduce this effect, as I used a water based contact cement. Reports of four or more coats of paint to get good coverage is not unusual for MDF. Since I used brads and used veneer, I did not have to round the corners or fill the holes. I did make sure all brads were not high. I did seal the box with sanding sealer and varnish the bottom. |
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| Copyright 2005, Trtinkerer | ||||||||