Momentive Performance Materials 
Construction Sealants
Pensil 300 - Fire StopProduct DescriptionPensil 300 silicone is a one part neutral curing silicone sealant for sealing joints to control the spread of fire, smoke, toxic gases and water during fire conditions. Pensil 300 silicone has excellent primerless adhesion to most common building materials as glass, glazed surfaces, treated wood, aluminium, steel, masonry and concrete. Excellent movement accomodation makes it an ideal product for joints where fire resistance must be maintained without loss of adhesion or rupture resulting from normal environmental movement. The fire retardant additives used in Pensil 300 silicone do not contain halogens or isocyanates.Key Performance
Key Applications
Material AdhesionPensil 300 silicone is a highly versatile sealant with excellent adhesion to most common building materials such as: glass, glazed surfaces, most plastics, concrete, metals, painted wood.Product InformationEnglish: Pensil 300Deutsch: Pensil 300 Français: Pensil 300 
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