Does DOW 795 ever cure, bond or dry?

[msmith10]

Dow 795 is great stuff, but definitely has a shelf life. It's an architectural adhesive/sealant for glass. I've found it to be very strong, highly elastic. When it's past it's shelf life, though, it has a very funny cure. If it's too old, you can tell as soon as you apply it- it feels more like polysulfide than silicone.

[anerussis]

Originally Posted by msmith10

Dow 795 is great stuff, but definitely has a shelf life. It's an architectural adhesive/sealant for glass. I've found it to be very strong, highly elastic. When it's past it's shelf life, though, it has a very funny cure. If it's too old, you can tell as soon as you apply it- it feels more like polysulfide than silicone.

On the tube is stamped Oct 10 -- so i assume Oct. 2010 -- is it too old? Will it eventually to the job or do I need to re-do the windows?
Also I had just wrapped the nozzle of the leftover tube with some saran wrap and when I tried it early this morning the stuff came out easily as if I had just broken the seal - is this normal?

[anerussis]

Originally Posted by anerussis

On the tube is stamped Oct 10 -- so i assume Oct. 2010 -- is it too old? Will it eventually to the job or do I need to re-do the windows?
Also I had just wrapped the nozzle of the leftover tube with some saran wrap and when I tried it early this morning the stuff came out easily as if I had just broken the seal - is this normal?

Just found the Dow specs for the Dow 795 - and now I realize whats happening ---" In totally confined joints (the sealant
requires atmospheric moisture for cure)"
In using this Dow 795 the more is not better- My window situation is because I believed the opposite and pumped as much of this stuff as I could in the joints. Also I think the reason my small test pieces did not bond is because the bead I applied was in the center of the pieces and sitting at the corner of my office desk and since there was no moisture present the silicone did not cure.
I would include the specs in pdf format but I don't know how.

[GaryHLucas]

I believe you got some old stock and it will never cure remaining like silly putty forever. I got sold old stock as well for my windows and contacted Dow. They told me never to use 795 beyond its use by date. Oh what fun peeling all that stuff off! The vendor gave me fresh tube and it cured with no problems. Sorry for the bad news.

[flyingriki]

Originally Posted by DRFerron

I'm going to slide this thread into a more appropriate forum.

Wow! The moderator is a BABE......how nice!

[mitiempo]

From Select Plastics - the largest hatch remanufacturer in the business - temp has to be above 50 F for the entire 21 day cure.

[SloopJonB]

Originally Posted by flyingriki

Wow! The moderator is a BABE......how nice!

Not only that - SHE hunts down & buys the boats in her family. I think her husband struck more gold than Sutters Mill there.

Edit: Quote:
Originally Posted by DRFerron
We're pretty much doing the same with our next boat. He gives me his list of requirements, I find the boat and he writes the check. Works perfectly for us.

[MikeinLA]

PLEASE don't ever use the phrase "DOW 795" in a title again. I haven't checked my stocks in a few weeks and I almost had a stroke.

Mike

[SimonV]

Dow 795 is perfect for through deck chain plate seals as it never truly cures . If using it in a place where someone may step or touch, I found a sprinkling of talc over the out side helped.