So you can get a perspective on this, the Panther calls for 2 pints of 3m AC Tech sealant at $48 each, so $96 for a quart. The Vans sealant is Flamemaster at $39 for a quart kit, and this is what I used for the KR fuel tanks. Proseal on the AC website is $316 for a quart.
Thanks for the like, saved me some searching. My Panther Building Documentation at PantherBuilder Web Site <http://pantherbuilder.org/> Daniel R. Heath - Lexington, SC