DOW is amazing - They respond by refuting negative reviews having the same identical problems, which are attributed to bad product design, not the customers' expiration dates or holding it wrong, etc. And 90% of their reviews on their website are NEGATIVE. The product delivery straws breaks, or jams patency. The straw easily unscrews while using it, so the product squirts out the attachment hub and over your hands and can; or the trigger bends making it unusable. The product does not stick to the surfaces easily during application, so it rolls off like shaving cream. But it sticks to everything else where you don't need it. About 25% of the cans run out of pressure leaving 1/3 of the product in the can! This product has more negative hits than positive from users, including myself.