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3M Fire Barrier Sealant is an excellent choice for filling gaps, sealing joints and protecting cable jacketing around electrical fixtures in commercial, industrial or residential fire-rated wall systems. The product can be easily applied with no odor or skin irritation issues after drying, providing up to 4 hours of fire protection against flames and smoke. Ideal for sealing gaps on door frames, windows, and other areas prone to potential fire hazards, this reliable sealant ensures maximum safety and durability without the need for any primers or additional layers.