HIGH YIELD fire-resistant, one-component expanding polyurethane foam. 25% higher yield than standard Soudafoam FR fire-resistant foam. Fast curing. Excellent thermal and acoustic insulation properties. Delivers 35-40 times its original volume. Excellent primerless adhesion to most building materials. Meets all international standards.Special featuresFire-resistant polyurethane expanding foam fillingEN13501-2 - Fire reaction, class EEN1366-4 - Fire resistance, up to 4 hours depending on the joint configurationMore than 25% linear yield than Soudafoam FRVery good acoustic propertiesApplicationFor use in passive fire protection systems as filling for large gapsinstallation of fire-retardant window and door framessealing of expansion and connection jointsInstructions for useShake the can vigorously for 20 seconds. Screw the can onto the gun. Moisten the grease- and dust-free substrate. For non-traditional substrates, it is recommended to perform an adhesion test on the substrate first. Fill the joint or cavity for 65% as the foam will expand further during curing. Shake regularly during use. If working in several layers, moisten between the layers. Uncured foam can be removed with cleaner or acetone. Before using the cleaner, test to ensure that surfaces are not affected. Plastics and paint or varnish layers can be particularly sensitive to this. Cured foam can only be removed mechanically or with Soudal PU remover.