I wrote Sal an e-mail regarding my "chunky z-2". (there was a post on this earlier).He wrote me back and asked for my address and full name so he could give me a new bottle!!
This was after I had buffed the "chunky" off. As good as it would have been to get the new bottle, I declined it since this one was ok, just had chunks that didn't hurt paint, and still shined.
He also gave me a list of how long products should last.
When stored in a cool dry place. Avoiding extreme heat or cold. Shelf Life is as follows.
Z-1 For optimum results use before 3 years.
Z-2 For optimum results use before 3 years.
Z-5 For optimum results use before 3 years.
Z-6 5 years +
Z-7 5 years +
Z-9 5 years +
Z-10 For optimum results use before 2 years.
Z-12 For optimum results use before 2 years.
Z-14 For optimum results use before 2 years.
Z-16 3 to 5 years
Z-18 5 years +
ZFX For optimum results use before 3 years
Hands down to Sal. He is a real honest American business man.
:bow

He also gave me a list of how long products should last.
When stored in a cool dry place. Avoiding extreme heat or cold. Shelf Life is as follows.
Z-1 For optimum results use before 3 years.
Z-2 For optimum results use before 3 years.
Z-5 For optimum results use before 3 years.
Z-6 5 years +
Z-7 5 years +
Z-9 5 years +
Z-10 For optimum results use before 2 years.
Z-12 For optimum results use before 2 years.
Z-14 For optimum results use before 2 years.
Z-16 3 to 5 years
Z-18 5 years +
ZFX For optimum results use before 3 years
Hands down to Sal. He is a real honest American business man.
:bow