Ekena MillworkBradford Leaf PML04X04BR Panel Corner (Matches Moulding PML01X01BR), 4 1/8"H x 4 1/8"W, Factory Primed

I tried three kinds of the polyurethane moldings: one for chair rail, one for picture or box frame (different people call it different names), and one for crown molding. They truly are extremely light, but I found that attaching them with caulk didn’t work very well (although I did caulk the joints joining two 45 degree miters). Instead, I used Gorilla Construction Adhesive, but after 30 second you had better have the molding placed exactly where you want it because it’s unmovable after that, I guarantee.You should be aware that these moldings cannot be produced to be perfectly straight, and the one inch picture frame molding (the one displayed here) was especially crooked being a bit twisted in places and curved in a variety of directions down the length.I butted them up against a straight edge taped to the wall with green Frogg tape, and that worked just fine. The Gorilla double sided tape, though, was a flop. I experimented with it in my garage (photo attached), and now I feel confident enough to install some moldings in the house. In the garage, the wall surfaces were concrete block in some places and dry wall in others. The concrete blocks posed no problem.

It has the look of the pictures except mine were warped, which is a problem because I needed to use them as long, flat, straight pieces framing something, and they are wavy. I've tried several things to straighten them but nothing works. If they weren't warped, they'd be fine, but unfortunately that messes up the project I was going to use them for.