Description

Pyropro LST is an acrylic based sealant used to reinstate the fire resistance performance of wall and floor constructions where they have
been provided with apertures for the penetrations of multiple services. Also forms linear gap seals where gaps are present within the wall and floor constructions and linear joints where wall and floor constructions abutt. PyroPro®LST Fire Resistant Sealant is a water based acrylic sealant which has been developed utilising specialist materials which significantly reduce smoke and toxic fumes in the event of a fire, PyroPro®LST therefore is authorised for use on the London Underground network, and other underground/ tunnel networks. Pyropro LST has slight intumescent properties that cause it to swell upon heating.The sealant is either gunned or trowelled into the aperture in or between the separating element/elements to a specific depth utilising various backing materials.

Uses

The specific elements of construction that the system Pyropro LST may be used to provide a gap or joints seal in, are as follow:

• Fire resistance testing to EN 1366-3 EI 120, EN 1366-4 EI 240 and BS 476 300mins.
• Fire resistance testing to ASTM-E 1966, UL 2079.
• CAN/UL 115-11 – ULus & ULc Listed.
• Resistance to Fire Classification EN 13501-2.
• Reaction to Fire Classification EN 13501-1.
• VOC Tested – ASTM D2369-10, LEED 2009-EQ041 SCAQMD.
• Acoustic Isolation to EN 10140 to 48dB.
• Air Permeability testing to EN 1026 to 600Pa – 100Pa 0.0/0.0 m3/h/m2.

Benefits

• Authorized for use on the London Underground Network – Product ID 2199
• Mechanical Adhesion, Tensile testing & Shore Hardness to ISO 9046:2005, ISO 8339:2005 & ISO 7619-1:2011.
• Fire resistance tested in flexible walls, rigid walls and floors.
• Tested in Linear Joints up to 50mm wide.
• Tested in large service openings up to 490 x 150mm.
• Tested with Metallic Pipes, Cables, Cable Bunches, Cable Trays and Cable Ladders.
• Causes no known effects to plastic pipes, plastic cables,sheathing or metallic components.
• For use in low movement joints, remains flexible.
• Halogen free, resists fungi and vermin.
• Certifire 3rd Party Certification CF 517.