"Fred" wrote in message
...
Never had GE silicone turned yellow either or hard on various
installations in 30 years. The only problem I had with GE is the shelf
life is too short and too hard to squeeze out of the tube where most of
the caulk blow out on the other end of the tube. Happens all the time -
need to keep and eye on the expiration date.

Excellent point, Fred.
I always give the cartridge sides a squeeze before buying to see if they
"give", and I do check the packing date, if visible. Both the hand-squeeze
tubes and the caulk gun cartridges tend to have high volatility and
correspondingly short shelf life.