K-FLEX K-FIRE HP SEALANT is a is an intumescent pressure sealant which, when exposed to fire, expands protecting penetrations including cables, cable bunches, cable trays, plastic and metallic pipes. K-FLEX K-FIRE HP SEALANT maintains the integrity and insulation performance of the seal through masonry and plasterboard. The sealant is intended for use in service penetrations through walls and floors where fire integrity and insulation needs to be preserved. Under fire conditions the product swells and exerts pressure to the surrounding substrates leading to closure of the penetration.

- Combustible pipe penetration;
- Insulated pipes penetrations;
- Electric and telecom cables penetrations;
- Combination of cables and pipe penetrations.

CE Marked 1121-CPR-JA5097
ETA 15-0778
ETAG 026-2 (2011) according EN 1366-3 Penetration Seals





K-FLEX K-FIRE HP SEALANT - 310 ml cartridge, gray 12



Test method

Fire Rating

Up to EI 240  EN 1366-3
Tested Penetration Seal In

Flexible walls: min. thickness of 100 mm
Rigid walls: min. thickness of 100 mm
Rigid floors: min. thickness of 150 mm

Tested Service Penetration

- PVC pipes up to Ø125mm
- HDPE pipes up to Ø63mm
- ABS pipes up to Ø63mm
- PP pies up to Ø110mm
- PE pipes up tp Ø125mm
- Copper pipes up to Ø60mm + FEF / MW Insulation
- Single cables up to Ø80mm
- Cables in bundle up to Ø100mm
- Linear Joint up to W40 + backing material

*FEF: Flexible Elastomeric Foam
*MW: Mineral Wool

Durability And Serviceability

Type Z2: Intended for uses in internal conditions, excluding temperature below 0°C, without exposure to rain or UV.

EOTA TR 024:2009
Movement Capability +/- 25%  

Application temperature range

+5°C ÷ +35°C  

Storing temperature range

+5°C to +25°C  


1.28 g/ml  
Cure Time 1.7 mm per 24 hours  


up to 20 x  

Expansion Temp.

180 °C  
Shore Hardness 68 ISO 7619-1:2010
Air permeability 600Pa EN 1026

Ecological data

Low Ozone Depletion Potential (ODP)
Low Global Warming Potential (GWP)
Dust Free
L’ISOLANTE K-FLEX reserves the right to change data and technical requirements without notice.
Contact us for more information.





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