QF4 Fire Protection Compound

London Underground approved, pre-mixed inorganic powder suitable for adding to water to produce a mortar which is intended for use as a gap filling material where non-combustible pipes and ducts penetrate fire compartment floors and walls.

Non-combustible compound manufactured from lightweight aggregates, inorganic binders and gypsum cement.

Features and benefits:

• Approved for use on the London Underground (product ID: 2425).

• The use of extensive shuttering is not necessary.

• Non-flammable/ non-explosive.

• Manufactured in the UK.

• Expected to last the lifetime of the service installation.

Standards and approvals:

Tested in accordance with BS 476: Part 20: 1987. The tests were conducted on a fire compartment wall penetrated by a variety of services which included galvanized sheet metal duct and iron pipes, all pointed up in QF4 compound to a thickness of 160 mm. Results demonstrated that the integrity and insulation values of QF4 were retained for four hours.

Application/ installation:

• Suitable for use in all types of building.

• Compatible with most building materials.

• After mixing with clean water, can be poured or trowelled into position

• Easily workable, and can be built up on flat surfaces without slumping.

• Can also be pumped into wall penetrations without the need for temporary formwork.

• Where there is likely to be movement in pipes or ducts, wrap round 5-10 mm mineral or ceramic wool.

Coverage:

One square metre at 160 mm thickness requires approximately 320 kg (13 x 25 kg sacks) of QF4 and will provide a four hour rated fire seal.