Instruct: Classify a given review as either positive or negative.
Query: Does not harden

I've tried using the product several times, mixing equal parts of the solutions, more of the left and more of the right and regardless of combination, I cannot get the product to dry. Several days later the product is still sticky and tacky to the touch. The idea of it being clear was nice in case there was any bleed out of the edges but the fact that the two pieces weren't ever held in place made that convenience moot.