Denture fixative seals which bonds uppers gum-tight. It has wafer thin fleece-soft seal with a powerful, all natural adhesive blended right in. Totally unlike pastes and powders, this seal cannot ooze out. It peels off easily meaning no messy clean-ups. Seabond has a special adhesive which comes from the sea plant kelp, plus another adhesive for all-day security. Unlike adhesives which weaken in moisture, the adhesive power of Seabond is activated and strengthened by the natural fluids in the mouth. Only suitable for plastic and porcelain dentures.