I have looked at all the threads I can find but I haven't found the answer to my question.
I was on the US Composits web site they sell resin with hardener. 1 qt=1 oz, 1gal =2 oz, and 5 gal = 6 oz. Why wouldn't I get 20 oz with 5 gal if it takes 1 oz per qt.? Do i need ot buy extra...