Den Braven Well Foam 750ml tubular

Den Braven well foam is a polyurethane-based foam suitable for filling joints when assembling and sealing concrete well rings. It can seal distribution, inspection and service shafts and is also suitable for direct contact with drinking water. The fast-curing Den Braven well foam has high filling and insulating properties and excellent adhesion to various building substrates, such as concrete, masonry, stone, metal, etc.

Usage:
The substrate must be clean, dry, solid, and free from dust, loose particles, grease, oil and frost. Cover any surfaces at risk of staining. Before application, it is recommended to dampen absorbent substrates with water using a spray bottle to increase expansion and achieve a better foam structure. Shake the can thoroughly before use, remove the cap and screw on the application tube. Fill the joint from the bottom up to about 60% capacity; the foam will expand to fill the rest.
Warning:
Not recommended for use in enclosed spaces. Zero adhesion to PE, PP, silicone, Teflon and greasy substrates. It is not recommended to heat the foam or joints at low temperatures; do not apply to substrates covered with frost.