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Material choice for radiator covers
Posted 03 January 2012 - 05:44 PM
Posted 03 January 2012 - 06:39 PM
Posted 19 February 2012 - 06:34 AM
Posted 19 February 2012 - 01:49 PM
Keep the MDF out of bathrooms... Any water, from splashes, leaks, heavy steam, or wet mopping, and they're toast. I also like to protect MDF edges with a paintable wood, like poplar. This makes the corner more durable to usage damage and wear and tear, as well as easier to paint after shaping. Incorporate a reveal into your MDF to poplar interface, and the joint will stay pretty as the materials move with temperature. Mitered joints can hide edges, but can be fragile in MDF. Think ahead of things that could strike the mitered corner. If things might, find a better corner.
MDF takes screws well, if you use the right screws. Confirmats are great. I've used regular McFeeley's screws after predrilling and countersinking both sides of the joint. The internal countersink allows the mushroomed material a place to go without separating the joint. If you don't have a lot of time, spend the money for proper MDF screws.
To use solid wood, you really need to understand and allow for movement. Do it right, and they'll last generations. Do it wrong, and they'll explode. Incorporate metal fasteneners that allow movement, space for the wood to move, and reveals to hide the changes, and you're good! My own home has white and red oak baseboard covers. They look great in a natural oiled finish, and hold up nicely when the wood can move.
GOOD cabinet ply is the great for painted items, stable, easy to work, screw and finish.
With any material in this use, reveals can go a long way towards keeping joints pretty as the stuff grows and shrinks under the paint.
Posted 19 February 2012 - 02:52 PM
The next one is of an edge that I sealed and painted.
The next two are of the butt joint between a side and the back. I did an extreme closeup for the last part so you could see that there is a line visible in some parts but barely. It is zoomed into and area about 1-2 inches big. I had to search for this area so I would not say it is a problem. I also used normal wood screws in it #10 - 2 inch screws. I pre-drilled and countersunk the holes. As long as I drilled about 1 1/2" there was not any problem with mushrooming. This was built from 3/4" MDF and seems super sturdy (obviously it holds my table top drill press plus three drawers worth of storage.)
Hope that helps and feel free to ask if I forgot to include something.