There is a way to protect the weld joint from what you mention.
As far as I know they aren't gluing together heavy equipment yet.
It would save the construction time at the factory if they did though.
My problem with any kind of plastic is, back in the day when everything was going plastic, and I complained to the salesman about all the stinkin plastic, they seemed to like to say its better and stronger than the metal. Well since then I've dealt with lots of broken plastic junk being used where only metal should have been used. When power tools went plastic that is when they became disposable, if the plastic breaks the tool gets junked, chainsaws are a good example of that. Plastics and glues are constantly used for things they shouldn't be used on. And the reason they are used is because its cheap and easy to do, not because its good and quality. Thats why a good quality restoration shop strives not to use bondos or plastic fillers, they use the good old body solder, thats metal not plastic.
You will never ever see a quality resto shop use that glue on a top quality resto, well unless they have to resto a new chevy spark or something like that, that was made with glue and plastic.
Find a good resto shop and learn from them how to do a top knotch fix. I really don't think Mark Worman would even dream of gluing something on his resto's.
Really though the day you can glue together a boom for a crane or blade on a bulldozer and all the other parts instead of welding them and they last 20 or so years pounding on rocks then you will convince me how good it is.
Last edited by Truckrolet; 08/01/2013 6:07 AM.