dj -I've found this product to work very well for bonding acrylic (PMMA) or polycarbonate - especially into aluminum frames.
Even if you don't use it, that document helps you think about the constraints surrounding the polymer/frame "needs".
The Sika system is certainly going to cost you a lot more than the $9 for the 795. But it also gives me a better feeling of adhesion to the various materials in this combination...If I was going off-shore, Id use the Sika system.
dj
Are you crossing oceans? If not, use the DOW 795. If I was doing the southern ocean, I'd invest in the Sika system. If not, the DOW sounds fine.dj -
I appreciate the reference. It is both thorough and educational. However, the total for the Sika system (205 Aktivator, 210T Primer, 295 sealant, and Sika UV tape (which does not seems to be available in the US) would be $145. The supplies would cover more than one hatch, but that's all I have to do.
I found some bronze 3/8 cast acrylic ($73.50 plus shipping) and plan to use 3M VHB heavy duty tape ($10) and the Dow 795 ($17) unless somebody waves me off.
Mike
Well, that certainly has not been my experience. I've found that system to be rock solid. It makes me question the professionality of your professionals that did the installation... But not having been there, I can't even begin to guess...Sika was used with my cabin windows. They fell out twice in three yrs. professionally installed. No more. 795 works great
It's measured in weeks. Appreciate the thought though.I did mine a couple years ago with the Sika system. Rock solid so far. I have a bunch of the primer left over if you want it. I don’t know what its shelf life is after being opened.