Pensil 300 Silicone Sealant is a one-part neutral curing silicone sealant exhibiting superior performance in applications where sealing apertures in walls and floors are needed to control the spread of fire, smoke, toxic gasses, and water during fire conditions. It reacts with atmospheric moisture to form a tough durable seal that will adhere to most building substrates without the use of primers. Pensil products do not contain asbestos or PCBs. This product may also be used to seal vertical and horizontal joints between metals, masonry, concrete and other common construction materials.

Features:

• High resilience allows movement due to expansion, contraction, or vibration
• Excellent water resistance for water-tight sealing
• Soft setting foam for easy retrofitting of cables
• Uniform cell structure ensures reproducible results every time
• Excellent adhesion to most building substrates
• Excellent smoke seal