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Application

  • Suitable for concrete, aerated concrete and masonry substrates and unreinforced spans up to 1600 mm.
  • Permanent fire seal for cables and cable trays, combustible pipes in combination with collars or wraps, non combustible pipes and ductwork dampers (see damper approvals).

Description

Fire resistant gypsum based mortar with thermal insulating and acoustic properties for sealing medium to large sized openings with high strength demands.



Features and benefits:

  • Quick setting.
  • Expands when set to provide smoke seal.
  • Good adhesion to steel, concrete and masonry.
  • Easier to install – consistency can be varied for application with a trowel or commercially available pumps


General information

Color

Grey

Material

Gypsum

Guidance for specification option:

Gypsum based mortar.

Shape

Formless

Uniclass

Pr_20_31_53_31 Fire-resisting mortarsPrimary

CAWS

P12/340 Intumescent mortar

P12/37 Intumescent mortar

Specification data - Fire-resisting mortars

Material

Gypsum based.

Fire resistance

240 minutes.

Guidance for specification option:

Up to four hours, dependent on substrate and application.

Density

1450–1600 Kg/m³.

Setting time

20 minutes.

Drying time

10 minutes.

Manufacturer guidance

Working time (approximate).

Application temperature

5–45°C.

Temperature resistance

-20 to +100°C.

Compressive strength - 1 day

8–12.5 N/mm².

Compressive strength - 28 days

17–25 N/mm².

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