OP
lilscorpion
Well-known member
. I work a lot on my boat and use Starboard quite often. I have all of the woodworking stuff to include 18" bandsaw, 15" planer, tablesaw, 3 Shopsmith machines, another bandsaw, and other assorted stuff to play with. I researched how to bond Starboard (HDPE) quite intensely myself as well and found that 3M makes a specialized adhesive expressly for use with plastics and HDPE was one of the main goals of this adhesive. It is called 3M Scotch-Weld Structural Plastic Adhesive DP-8005 and comes in two colors translucent and black. From what I have read it is very strong and works wonders on HDPE but it isn't cheap and you have to buy a special applicator gun which mixes the two part adhesive in a special nozzle. If you Google 3M Scotch Weld DP8005 you will find plenty of hits. I would give it a go on your tray joining project and I bet the separation issue will be solved. Much easier than trying to weld the stuff which is probably the best way to join two pieces of HDPE or any plastic for that matter but the tooling to weld plastic is quite expensive as I also researched that as well.
No, I bow down to you. This is what I've been looking for and figured had to be out there. I just didn't know any boat guys until now. I'll figure out how to convince my wife she needs some of this for scrap booking and get it ordered.

