Leak Stopper Rubber Flexx Waterproof Repair & Sealant Spray is a convenient spray patch and repair sealant that dries white. This multi-purpose product allows for quick repairs across a variety of surfaces. The rubberized finish stays flexible to withstan
Flex Sealant does exactly what the description says it does. I needed to seal a concrete planter that was seeping water through. This sealed the planter and I was able to paint the outside and it hasn’t leaked through. Love this product.