I put the third coat of Helmsman Spar Urethane on the pre-cut boards for an $80 6' picnic table from Home Depot, I've put at
least 30 man hours into this cheap little table.
Last year all table pieces were sanded and wood bleached a couple times then sanded progressively down. Starting at 80 grit on a belt sander to (at least) 320 grit on a vibrating sander. Then just the table top piece was treated with Min Wax Pre-Stain treatment twice, each one day apart. Then
very thoroughly stain/sealed with Minwax Wood finish in three coats,
being very careful to get every nook, cranny, knothole etc. saturated and excess removed. And finally two coats of Minwax Helmsman Spar Urethane, just as thoroughly applied, but sanded between coats.
This year I've gotten the rest of the pieces (frame and seats) caught up with the table top piece. The frame and seat boards had to be bleached and sanded again because little beads of sap had seeped out all over.
I plan on taping off the bottom of the table top and seats to fill between the boards and a 1/4"on top with Super-Glaze, it's the really thick clear coat like on nice bar-tops.
The amount of effort I have put into this table is comedic, but it should last a little longer than the last one I had... It was just stained once for some color.
A couple pics-
I think this is Pre-stain treatment (left) and first coat of stain in progress (right)
Spar Urethane going down
Getting in the holes
Between coat sanding
Gotta have a reflection shot!
Table top piece
Sorry it's not car related :dunno: If it wasn't so crappy out I would have had
big, not car related, project to post about... Building a Retaining Wall.