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. Pensil® 300 Silicone Sealant 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. Pensil 300 Silicone Sealant may also be used to seal vertical and horizontal joints between metals, masonry, concrete and other common construction materials.

PEN300	01120	Silicone 10.3 oz. Tube
PEN305	01125	Silicone 5 gal. Pail
PEN305SL	01126	Self-Leveling Silicone 5 Gal. Pail

• Low Modules allows up to 50% movement in joints.
• Auto-bonding allows fresh sealant to adhere to cured sealant.
• Excellent water-resistance for water-tight sealing.
• Ozone and UV-resistant for excellent weathering ability and long service life.
• Excellent chemical resistance protects in polluted or corrosive atmospheres.
• Excellent adhesion to most building substrates.
• UL testing for W ratings
• Acoustically tested reduces noise transmission.