Deligo SF750 B3 Expanding Foam 750ml. Deligo Is A Uk Based Supplier Of Fixings, Fasteners And Accessories. Their Proven Ranges Include Conduit Accessories, Drill Screws And Nails. The Deligo Sf750 Is A Can Of Expanding Foam Which Has A Fire Rate Of B3, Is Cfc-Free And Self-Expanding. This Foam Has An Excellent Adhesion And Filling Capacity With A High Thermal And Acoustical Insulation Value, A Quality Mounting Capacity And Stability And Can Adhere To Almost All Building Materials. This Expanding Foam Is Mould-Proof, Waterproof And Can Be Painted Over. Once Dried, This Foam Forms A Rigid Consistency – Allowing It To Be Trimmed, Shaped And Sanded. Uses For This Foam Include: Fixing And Insulating Of Door And Window Frames, Filling And Sealing Gaps, Joints And Cavities, Filling Of Penetrations In Walls And Insulating Electrical Outlets And Water Pipes. Size: 750Ml.. This CFC-free propellant Self-Expanding Foam is manufactured from polyurethane with a 90 minute cure time.