Whether you are sealing, mounting or filling this one component, this moisture curing expanding polyurethane gun grade foam from Unibond is the perfect product for a wide range of applications from filling structural space between window and door frames to creating soundproofing screens. A single can of 750ml foam can produce up to 45 litres of cured foam (subject to working conditions). This product can only be used with a specialist gun applicator, which we also stock, which makes it suitable mainly for professional users, and provides a more accurate distribution of foam than the aerosol version. Comes with single use pair of gloves. For single applications and general domestic use, our hand held expanding foam would normally prove more economical.