Seabond Fresh Lower Dental Fixative 15 Denture fixative seals which bonds lowers gum-tight. It has wafer thin fleece-soft seal with a powerful, all natural adhesive blended right in. Totally unlike pastes & 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 & strengthened by the natural fluids in the mouth. Only suitable for plastic & porcelain dentures.