Its not new... I have been using it for years to stop rust, but it can be used on headlamps as well. I just added data on it to
http://faqlight.carpassion.info/tools-materials.htm
The main thing here is that in uncured form, it does not run away like JB Weld does. And cure time till dry touch is a 3-5 hours (3 days for full cure). I used it in combination with some drywall fibreglass tape with 2mm masking and it works great!
Bond strength is lower than a plastic welder, probably lower than JB-Weld too. I would say the best purpose for this is to cover up areas in the rear of a projector retrofit.
