Sikabond-T21 All-in-One Polyurethane Adhesive for Wood Floors - 4 Gallons

this was the best product for putting real hardwood floors on top of concrete

The product itself is great. It even comes with a trowel blade that will snap onto any existing trowel. Unfortunately the bucket was shipped by merely slapping a label on it and sending. As a result the bucket was extremely banged up. This made it impossible to scrape all product out of it as well as impossible to get the deformed lid back on. This meant I was only able to use about 50% of what I paid for.