At Rowhunter's suggestion, I'm starting a PVC thread. I use it for all my lure building, for the following reasons: It is totally waterproof, so I can shape a lure, and then test float and ballast it without any sealing. I have a 3 gallon bucket of water in my driveway that I use for test floating. It is buoyant. The Azek PVC decking is as buoyant as poplar, a hardwood I used to build my jointed swimbaits from. The Azek trimboard is even more buoyant, like medium density balsa. I