I'm working on a painted door design. I’m hoping to minimize joint telegraph and cracking issues. The client does not want one piece MDF. I'm thinking five piece mitered door and splined miters using soft maple with a 1/4 inch MDF center flat panel glued into the grooves. The sticking detail is a double round over.
I'll use polyurethane glue to eliminate joint creep on the miters and fill any defects with bondo. Finish will be ML Campbell Clawlock, top coated with stealth tinted to the chosen color. Is this as good as it gets or could my system be improved?
From contributor A:
This may read a little critical.
1. Mitered doors are the most prone to joint cracking. Far more than traditional cope/stick doors.
2. Polyurethane glue(ie Gorilla Glue) is a poor wood glue. Worst choice for your miters.
3. Bondo telegraphs more than most other fillers because it is much harder than wood or plywood.(We use it for big defects but prime it 3 times to bury it)
1. Soft maple is a good choice for high quality painting.
1. Typical five piece cope and stick door.
2. Plenty of Titebond 1 style yellow glue.
3. Muralo Pro Grade Spackle is a great product for surface defects before and after primer.