Mapei Ultrabond ECO 907 20oz. Sausage Adhesive

Ultrabond ECO 907 is a fast-curing, 100%-solids, moisture-curing, gun-grade adhesive built for the small jobs the tub adhesives aren't meant for: basic wood subfloor construction, wood flooring repairs, stair nosing bonding, molding and baseboard installation, and attaching tackstrips to concrete subfloors. It's also the go-to for supplemental gluing on wide plank boards that need both nails and glue.

Silane-modified polymer formula bonds most common construction materials — plywood to lumber framing, engineered and solid wood flooring, wood moldings and baseboards, carpet tackstrips, and polystyrene insulation boards. Rated for interior residential, commercial, heavy commercial, and institutional use.

2-hour cure time, high bond strength, and strong elongation so it flexes with wood movement instead of cracking. This 20 oz sausage-style cartridge is built for standard sausage-style caulking guns — no trowel or mixing required.

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What's the difference between this and the standard cartridge sizes? Same formula and performance — this is packaged as a 20 oz sausage-style cartridge for sausage-gun applicators instead of a standard caulk-gun cartridge.

What's this used for that the tub adhesives aren't? Small, targeted bonding jobs — stair nosings, moldings, baseboards, tackstrips, subfloor panels, and supplemental gluing on wide plank boards.

How fast does it cure? 2 hours. You get 15–30 minutes of working time per application before it starts to set.

How do I clean up excess adhesive? Wipe smudges immediately with mineral spirits while wet. Once dry, gently rub with a white cloth to remove residue.