OSI FRP555 Latex FRP Adhesive is a strong, flexible adhesive, specifically formulated for fiberglass reinforced plastic panel installation. This water-based formula is easy to trowel and cures to a strong yet flexible bond. OSI FRP555 is unaffected by moisture, steam, water, heat or cold when fully cured. It will not harm or burn-through tub kit materials. OSI FRP555 cleans up easily with soap and water while wet.