Thanks for the replies,
Bobp I don’t think I left any place for water to enter the lure and waterlog the lure and if they are in the water for only 15 minutes the paint cracks.
Hazmil ,I do understand the problem is atmospheric pressure that is compressing the finish and or paint on the lure I have made some from soft wood(cedar ,pine) and some on hard wood(basswood) and they both cracked. I have store bought wooden lures that I have fished that deep with no effects (lymans). I was hoping to find out what they use but some secrets are hard to get. I think it’s the clear coat that has to be tough enough to withstand the pressure or malleable enough to move. I will have to try both and try some on plastic stock
I have also thought about using a stain on the lures since the color isn’t as important at that depth.
The clear I used was not a 2 part finish and I thinking that the finish is most important to get that depth
Thanks again
Rich