CP 637
Verified by manufacturer over a year ago
Structural grade firestop mortar.
Application
- Suitable for concrete, aerated concrete and masonry substrates and unreinforced spans up to 800 mm.
- Used for the permanent fire seal of cables and cable tray, combustible pipes, and non-combustible pipes.
- Can be used on medium/ large multiple penetrations in combination with other products (concrete/ masonry).
Description
Fire resistant, gypsum based mortar with thermal insulating and acoustic properties for sealing medium sized openings where further penetrations may be required.
Features and benefits:
- Quick-setting - forms can be removed after as little as two hours.
- Superior working properties - saves time.
- Can be pumped, poured or trowelled - easy to form and apply.
- Can be used in horizontal or vertical applications.
- No shrinkage.
- Fire resistance rating of up to four hours.
- Mould and mildew resistance (to BS EN ISO 846): Class 0.
General information
Color | Grey |
Material | Gypsum Guidance for specification option: Gypsum based mortar. |
Uniclass | |
CAWS | P12/340 Intumescent mortars P12/37 Intumescent mortars |
Specification data - Fire-resisting mortars
Classification data | |
Material | Gypsum based. |
Fire resistance | 240 minutes. Guidance for specification option: Up to four hours, dependent on substrate and application. |
Density | 900–1000 kg/m³. |
Setting time | 60 minutes. |
Drying time | 30 minutes. Manufacturer guidanceWorking time (approximate). |
CompressiveStrength | 3.5–6 N/mm² (24 hours). |
Application temperature | 5-45°C. |
Temperature resistance | -20 to +100°C. |
VOC emissions | 0 g/L. |
Similar products from Hilti (Gt Britain) Ltd
CFS-M RG Firestop Mortar
CP 638 HS Firestop Mortar