I'm trying to come up with a better way to finish interior doors in our shop. We spray 10 or 20 doors at a time. I'd like to spray flat instead of vertical, do both sides of the door without waiting for the finish to dry, and do the tops and bottoms of the door at the same time.
I'm planning on making some stackable frames that would hold one door each, then hold the door in place with a 1/4" lag screw at the center of the top and bottom so it can pivot, then stabilize it with a peg in the latch hole. The screw holes would be plugged when done.
Another option is to make drying racks that would hold several (10?) doors, supporting them by lag screws also so both sides could be finished at once.
Both styles would also work for drying mouldings. I'd be interested in any methods being used for similar situations. I only need to do one or two batches a month.
Why wouldn't you want to finish them vertically? Except for an occasional run, you would get a much better finish, i.e. less trash, handling damage, etc. Besides, it isn't as easy to spray horizontal as it is vertical. Fixtures would be easier to make.
Four round steel handles are welded to a base plate, looking like the shape of a T after welding. One handle is screwed to each corner of the top and bottom of the door. The door now looks like a stretcher.
To spray, the door is laid across 2 sawhorses, one side is sprayed, the door is flipped, rotating on the handles, and the other side is sprayed. The door is moved to a waiting pair of sawhorses. The process is repeated for all doors, each sprayed door stacked on top of the last by laying a thick block across the handles, at the top and bottom of the door at the bottom of the pile.
Comment from contributor A:
We have a newly patented product for finishing doors that addresses these issues. This is not a request for business, but some input as to the question raised. We developed our drying racks to hold the door in the vertical position, while laying on its edge. I am by trade a building contractor, and found that doors that were dried in the flat position or leaning against walls were trouble when rehanging. We were constantly taking door stop off the jambs in order to accommodate the "bowing" effect of the door slab. We used this method repeatedly before ever developing the product for the public.