Given that a concrete curing cycle might be 24 hours or more, 27 years of continuous molding would be 10,000 cycles. The urethane would likely be getting chemically shot by then. So yes, 270+ years mold lifetime is an overstatement.
Given that a concrete curing cycle might be 24 hours or more, 27 years of continuous molding would be 10,000 cycles. The urethane would likely be getting chemically shot by then. So yes, 270+ years mold lifetime is an overstatement.