PyroPro® LST (LUL) Sealant

Water based, acrylic, fire resistant sealant, designed for use in tunnel systems and to reinstate the fire resistance of wall and floor constructions (where apertures are penetrated by multiple services) and linear gap joints (where wall and floor constructions abut).

Features and benefits:

• Mechanical adhesion, tensile testing and shore hardness to ISO 9046:2005, ISO 8339:2005 and ISO 7619-1:2011.

• Fire resistance has been tested in flexible walls, rigid walls and floors.

• Causes no known effects to plastic pipes, plastic cables, sheathing or metallic components.

• Remains flexible.

• Halogen free, and resistant to fungi and vermin.

• CE marked.

Applications:

The sealant can be gunned or trowelled into the aperture, either in or between the separating elements to a specific depth, utilizing various backing materials (stonewool; minimum of 80 kg/m³, or PE backing rod). For use in low movement joints, and tested in the following locations:

• Rigid walls of 100–250 mm thickness.

• Rigid floors of 150 mm minimum thickness.

• Linear joints up to 50 mm wide.

• Large service openings up to 490 x 150 mm.

• Metallic pipes, cables, cable bunches, cable trays and cable ladders.

Conforms to/ approved by:

• ASTM D2369-10.

• LEED 2009-EQ041.

Product will swell upon heating due to its intumescent properties. Consult manufacturer to view performance data in different applications.