Warped HDU Panel

[blackhawk]

Joe - I am just a little familiar with Borax. I know that it is used to treat for powder post beetles. I'm not sure how long the Borax protection would last. Try checking out www.woodweb.com, they have a lot of good info on there. The "sawing and drying" forum would be a good place to post a question about Borax. The moderator for that section of the forum answers a lot of the posts and he is excellent.

Brad

[marysvillesign]

Joe,
I came back to this post reviewing some other sign mounting posts.
Did you have a final outcome of this problem? I have used 6mm Dibond
as a backer without this warping. Heat in your area vs. cooler temperatures here?

[joe]

Ron,

Thanks for your interest.

We removed the sign and was luck to be able to pry the Dibond of the back with little damage to the original panel. A new 1/2" sheet of Duna 18lb was epoxied to the back. I made sure the sign was laying flat during the glue up.

I then glued attached the 2"X3" stringers to the back are re-installed. She's flat to the world now and I'll not glue up materials with different expansion rates.

Joe

[marysvillesign]

Joe,
Good to hear of the success. That Duna is great stuff.