Summer proseal pot times?

Lemmingman · #1 07-01-2012, 08:29 AM

When I pro-sealed my first fuel tank it was Nov/Dec and the temps were pretty chilly. I got into a rhythm once I understood the pot times. Seems to me the Proseal was good for about 40 minutes max before it started getting too stiff. I could mix up a batch of 50-60g of the stuff and use most of it on a rib. Those of you who worked on your tanks in the summer, are there any radical changes to the pot times for proseal?

gib · #2 07-01-2012, 08:56 AM

I just did my right tank in Arizona when it was near 100 deg in my garage. I ran out of M.E.K. and had to run to Home Depot to get some. 25 min later I finished without any trouble. The pro seal had been mixed for about 1.5 hours when I started my clean up process. Now I did notice this morning when I checked on the tank that the pro seal was not tacky at all. This was not the case when I did the left tank back in March when the temp's were in the 60-70 range. It was 2 days before the pro seal was not tacky any more.

gib · #3 07-01-2012, 09:00 AM

I might add that it was over 110 deg in my garage yesterday afternoon or like a big oven for setting up pro seal or slow cooking a turkey.

Gary 40274 · #4 07-01-2012, 09:03 AM

Quote:

Originally Posted by gib

I might add that it was over 110 deg in my garage yesterday afternoon or like a big oven for setting up pro seal or slow cooking a turkey.

Were you the turkey? I just couldn't resist, sorry.

Gary Specketer

gib · #5 07-01-2012, 09:06 AM

Sometimes in Az in the summer you feel like you're being cooked like a turkey.

az_gila · #6 07-01-2012, 11:35 AM

This rule of thumb is from a Proseal distributor, but is sort of generic for most chemical reactions...

Rule of thumb: for every 17?F (10?C) rise in temperature, application life is reduced approximately by half, and for every 17?F (10?C) dip, it is approximately doubled.

krw5927 · #7 07-01-2012, 12:50 PM

My first tank was done in cooler weather. When I got around to my second tank, it was in the July/August timeframe. I was worried about the shortened pot life so I bought B4 proseal (4 hour working time vs 2 hour for the B2 that vans sells) from a local distributor. It was perfect for working in hotter weather.