MDF Stability for Kitchen Doors
Im starting a project to make some replacement doors for our kitchen presses. The plan is to make some shaker style doors by gluing 75mm wide 6mm deep MDF boarder struos onto the surface of 12mm MDF panels, which are pre-cut to the current door sizes.
Im going to leave the boarders a little proud of the backing board then flush route them to trim back the 6mm strips. Also before gluing on the boarder strips I am going to route the center of the 12mm panels to give them a TG&V style effect. Guess thats not strictly shaker but it seems to add a little character. A very small 45 degree routing around the edge strips gives a nice effect and mock joint top an bottom too.
Ive copied the idea from a thread on ultimate handy man. Fraid i cant post urls here yet so hope the above gives a good picture.
The prototype looks good when made as above. However, Im wondering if anyone has any thoughts on keeping the MDF stable, especially when applying paint. Im concerned that if they take on moisture from the air (while sitting in the workshop), glue or paint, before they are sealed, I might get warping in the finsihed product.
I plan to seal all the routed edges of the MDF with PVA (Polybond) un-diluted and then sand back when dry to try and keep the furry edges fairly smooth when finished. Then its a coat of oil based undercoat and 2 or 3 coats of water based acrylic on top. All the paint to be sprayed.
Unfortunately the cost of moisture resistant MDF stretches the budget. Also I cant seem to get 12 and 6mm sheets of MR MDF.