FIRE STOP LC150RD is a versatile intumescent product intended for fire-stopping a wide array of applications in small commercial or grouped residential construction or other structures with similar applications. It is fully tested to ASTM E814 and meets Class A finish requirements for Flame Spread and Smoke Development when tested. It provides up to a 2 hour fire rating for typical service penetrations through concrete or wood floors, concrete or masonry walls, as well as gypsum board walls. LC150RD is also acoustically tested, demonstrating excellent sound attenuation properties. - No Shrinkage in Most Applications - Mild Latex Odor - Expands Up to 10x Original Size - Paintable at Full Cure with Non-Solvent Paints - Water Clean Up - Contains No Solvents; Safe For Use With Most Plastics - Adheres to Most Common Construction & Penetrant Materials - VOC Compliant