Complaint / Review
Flex Seal at Amazon
Consumer Report

Ordered one can @ $19.99 plus Shipping $9.95.=$29.94
Get one can free / only pay shipping (supposed to be $9.95=$39.89.

They charged $19.99 for the first can, then $9.95 to PROCESS the
second can, then charged $17.90 shipping = $47.84.

The crooks screwed me out of $7.95. I may be dumb, but I am
not Stupid. McAfee warned me but I did not listen. LESSON learned..