Update on 37 gallon build - Not good news
I wish I could say the assembly went silky smooth but that's not the case.
As the photos show the tank was all sealed up but 24 hrs. later the GE RTV108 was still tacky. Went back to Grainger Supply with the remains of the tubes and they called their distributor to get an explanation. Turns out the batch of sealant was manufactured in 2003 and has a two year shelf life so the product was four years past its shelf life. The distributor provided a tech support number (800-332-3390) for Momentive which now makes the RTV108.
I got through immediately to a tech person and he said if it hadn't cured by now, 36 hrs. after use, it probably wasn't going to cure. He also said if in fact it did cure the structual integrity has been compromised. He expained how the curing process works, but bottom line, I'll have to take the tank apart, scrape and clean everything thoroughly with a solvent and start over which is a project I'm not looking forward to tackliing.
For those who may want to use the RTV108, The batch number printed on the bottom side of the tube is actually the mfg. date. The new tubes I have are marked: Trans RTV108 09AUG5.
Grainger Supply did refund my money for the two tubes I purchased and today gave me two tubes with a mfg. date of August 09 at no cost. They also said they destroyed all of their outdated inventory. Additionally, the Momentive tech rep was a knowledgable and pleasant person to work with.
I know this is kind of windy but thought other DIY folks might like a heads up to help prevent a whole lot of additional work for themselves.