"Mike Noel" wrote in message ...
I need to seal my plexiglass windshield in a few spots and happen to have
some GE Silcone II sealant on hand. It is spec'd as low odor but releases
methanol and ammonia as it cures. I have seen warnings against using
regular silicone sealant since the acetic acid it releases can corrode
aluminum, but I believe ammonia has a high pH (is basic instead of acidic.)
Does anyone know if Silcone II is 'safe and effective' as a windshield
sealant?

Piper uses a Bostik urethane sealant, can't remember the Bostik p/n,
sorry.

You can order it by p/n from Piper also, the quickest place for a
Piper guy to find the proper p/n is to look up the s.b. on the rear
spar carry-through brackets (the sealant used around the new bracket
is the same sealant used on the windows), or they might find it in the
maintenance manual.

Not sure what Cessna recommends.

TC