Sealant for underground services
FR-35 Graphite Pressure exerting mastic is designed for the sealing of small to medium size penetrations of pipes and single or bunched cables. It is a water based acrylic resin formulation that quickly dries on application to a flexible and cohesive sealant.
FR-35 Graphite Pressure Exerting Mastic
Test to BS EN ISO 4589 - 2:1999
Tested to NF X 70-100 - 1&2:2006
Test to BS 6853:1999: Annex D.8.3
APPLICATIONS
Producing a permanent fireseal in penetrations up to 300 cm ²,
sealing around cable penetrations and pipe (up to 70mm diameter) penetrations in conjunction with mineral wool. It can also be used
for filling fissures and gaps in firewalls and floors. The dry mastic is paintable.
TECHNICAL DETAILS
Colour: Graphite
Specific Gravity: 1.32-1.38
Skinning Time (23℃/50%RH): 15 - 30mins
Cure Time (23℃/50%RH): 3mm/24hr depending on joint size and situation
Movement Capability: ± 15% (when cured)
Activation Temperature: Approx. 150℃
Application Temperature: 5℃ to 40℃
Service Temperature: -20℃ to +80℃
Expansion: min. 5:1
Shelf Life: min. 12months when stored in unopened containers as
recommended.
Fire Resistant Period: BS 476 part 20 4hrs
APPLICATION INSTRUCTIONS
Clean the penetration opening so that it is free of dust, grease and any loose material. Cable trays and pipe supports must be installed according to building regulations.