Firex® 321

Single part fire rated acrylic sealant designed for internal perimeter pointing of fire rated door and window frames where the integrity of fire walls or partitions needs to be maintained. The sealant is formulated to intumesce on exposure to high temperatures to form a fire and smoke resistant seal.

It is non-hazardous, will not emit halogenated by products under fire conditions and contains no raw materials known to have an oestrogenic effect in the environment. The sealant offers excellent levels of unprimed adhesion to most construction substrates and can be overpainted.

Features/ Benefits:

• Swells at high temperature to give a fire and smoke resistant seal.

• Four hour fire rating.

• Environmentally friendly.

• Paintable.

Applications:

• Door and window perimeter pointing.

• Partition joints.

• Perimeter pointing to fire wall penetrations.

• Low movement block work joints.