Sika Boom-FR is a one part, high yield, fire rated, polyurethane foam.UseSika Boom-FR can be used for: Filling gaps and voids. Blocking out dust, noise and draft. Thermal installation of window and doorframes. Thermal insulation of pipes. Joint firerating can only be achieved when designed with respect to the fire report (please see report for various joint orientation) Characteristics and Advantages High yield Easy application Suitable for application at lower temperatures (+5C) Fast curing Excellent thermal insulation Age resistant CFC/HFC free Resistant to temperatures ranging from -40C to +100C Packaging750 ml can (12 cans per box).