Technical datasheet Hilti Firestop Foam CFS-F FX European ...

Technical 

datasheet 

Hilti Firestop Foam CFS-F FX 

Hilti Firestop Foam 

CFS-F FX 

European 

technical approval 

ETA N o 10 / 109 

Issue 06 / 2010 

Hilti Firestop Foam CFS-F FX | Issue 06/2010 page 1


Firestop Foam 


Fields of Application 

Permanent firestop seals in small and medium-sized openings 

(optimum size range: 100 x 100 mm to 300 x 300 mm) 

◼ Cable trays, single cables, tied cable bundles, small conduits 

◼ Openings accommodating pipes and cables 

◼ Plastic pipes 

◼ Metal pipes (with combustible or non-combustible insulation) 

(The seals must comply with ETA N o 10 / 109.) 

Features and Benefits 

◼ 3-phase technology with optimum application characteristics 

(easily shapeable foam) 

◼ Easy installation without need for formwork or other aids 

◼ Easily applied using the ergonomically-designed Hilti dispensers 

◼ Safety first: CFS-F FX complies with the requirements of 

international fire protection directives 

◼ Neat and tidy application 

◼ Very quick and easy to install – a reliable firestop seal with only 

one product 

◼ Easy subsequent installation of additional cables 

◼ Outstanding sound insulation properties thanks to flexible foam 

structure 

◼ 

Smoketightness and firestopping with one system 

Ordering 

Bauchemie Piktos_neu.ai 

01.10.2006 01.10.2006 

45% 45% 

30 30 30 30 

years years 

Technical Data 

Jahre Jahre 

Wasserbeständigkeit Wasserbeständigkeit Elektische Elektische 

35% 35% 

Wasserbeständigkeit Wasserbeständigkeit Elektische Elektische 

30 30 

Rauch- und Rauch- Gasdichtigkeit und GasdichtigkeitSchallschutz 

Schallschutz 

Dampfdichtigkeit Dampfdichtigkeit 

30 30 

Wärmedämmend Wärmedämmend 

Reaction to fire, classification 

Class E 

years years Jahre Jahre 

according to EN 13501-1 

Temperature resistance 

– 30°C to + 60°C 

of the cured foam 

Shelf life 9 months (at 23°C and stored 

in a dry place) 

The European Technical Approval 

(ETA) can be obtained via your 

local Hilti Wasserbeständigkeit contact. Wasserbeständigkeit Elektische Elektische 


Colour Red 

Foil pack volume / foam yield 325 ml / 2.1 liters (freely foamed) 

Application temperature of +10°C to +35°C / +5°C to +25°C 

pack / Storage and transport 

temperatures 

Curing times Can be shaped after 

approx. 5 min. 

Can be cut after approx. 10 min. 

At 23° C, 50% relative humidity 

Rauch- und Rauch- Gasdichtigkeit und GasdichtigkeitSchallschutz 

Schallschutz 

Rauch- und Gasdichtigkeit 

Smoketight Rauch- und Gasdichtigkeit Sound Schallschutz Schallschutz insulation 

Order Description Package content Item Number 

CFS-F FX incl. 1 mixing nozzle, instructions for use 00000000 

Order Description Package content Item Number 

MD2000 manual dispenser Manual dispenser with 1 foil pack holder 00000000 

ED3500 cordless powered 

Dispenser, C7/24 charger, SFB 121 battery, 3 round brushes, 

00000000 

dispenser kit 

protective glasses, blow-out pump, 2 foil pack holders, 

packed in an impact-resistant plastic Hilti toolbox 

ED3500 cordless powered dispenser Dispenser, 3 round brushes, protective glasses, blow-out pump, 

00000000 

basic kit 

2 foil pack holders, packed in an impact-resistant plastic Hilti toolbox 

page 2 Hilti Firestop Foam CFS-F FX | Issue 06/2010

Installation instructions 

Clean the opening to be sealed. The material 

around the opening must be dry, in sound 

condition and free from dust or grease. 

Check the foil pack holder for damage and 

ensure that it functions correctly. Slide the foil 

pack into the holder. Caution: Never use damaged 

foil packs and/or damaged or badly 

soiled foil pack holders. 

Remove the cap. Screw the mixing nozzle 

all the way onto the foil pack and tighten it 

securely. Check that the black mixing element 

is in place inside the nozzle! Do not use damaged 

mixing nozzles. Do not, under any circumstances, 

modify or tamper with the mixing 

nozzle. The foil pack should only be used together 

with the mixing nozzle supplied. A new 

mixing nozzle must be used with each new foil 

pack. 

Insert the holder containing the foil pack 

into the dispenser: Press the release button 

on the dispenser, pull the piston rod back as 

far as it will go and then insert the holder containing 

the foil pack into the dispenser. 

The foil pack opens automatically when dispensing 

begins. Never pierce a hole in the foil 

pack! This will cause the system to malfunction. 

Discard the unevenly mixed initial quantity: 

The foam dispensed by the first stroke of the 

dispenser must be discarded, e.g. in the empty 

outer packaging material. 

Apply the firestop foam in the opening to 

be sealed. The mixed components of the 

foam react and begin to expand approx. 30 

seconds after application (at 23°C). Fill the 

opening completely with firestop foam, including 

gaps between individual cables, etc. 

NOTE: 

It is generally best to begin in the middle of 

the opening, building up the foam by working 

from bottom to top. In openings with access 

from only one side, begin at the rear and work 

toward the front. 


The foam will harden in the mixing nozzle during 

pauses (i.e. > 1 minute at 23°C; > 20 seconds 

at 35°C). The mixing nozzle must 

then be changed. Release the pressure from 

the piston rod before changing the mixing 

nozzle. 

Use formwork made from an air-permeable 

material (e.g. perforated cardboard) 

when filling openings in ceilings. 

The foam can be shaped or smoothed by 

hand (if necessary) after approx. 5 minutes (at 

23°C). Wear protective gloves! After approx. 

10 minutes (at 23°C) the foam becomes hard 

and it can then be cut. 

NOTE: 

After hardening, any projecting foam can be 

trimmed off to the specified minimum depth. 

Trimmed-off scraps of hardened foam can be 

placed in the next opening and fresh foam applied 

around these. 

Mount the installation identification 

plate beside the correctly sealed opening, 

if required. 

Subsequent installation of cables or pipes 

Additional cables or pipes can be installed in 

the opening without difficulty. Do not exceed 

the approved maximum number and size of 

cables or pipes. 

1. The cable or pipe may be pushed directly 

through the foam. Where necessary, use a 

suitable tool (screwdriver or drill bit, etc.) to 

make a hole in the foam before pushing the 

cable or pipe through. Do not damage existing 

cables. 

2. Seal any remaining gaps carefully with 




Cable penetration 

Flexible wall | Rigid wall 

Hilti Firestop Foam CFS-F FX may be used to form penetration seals of maximum opening size 400 x 400 mm (w x h) in: 

Flexible walls / Drywalls (E), minimum thickness 112 mm (t E ) with timber or steel studs lined on both faces with minimum 

2 layers of 12.5 mm thick boards. For timber stud walls there must be a minimum distance of 100 mm between the seal and 

any stud, and the cavity must be filled with minimum 100 mm insulation of Class A1 or A2 in accordance with EN 13501-1. 

Rigid walls (E) (concrete, aerated concrete or masonry, minimum density of 650 kg/m 3 ), minimum thickness 112 mm (t E ). 

Cable | Cable tray 

Blank opening 

Penetration seal (A) /services (C) Classification 

E = Integrity 

I = Insulation 

Small sheathed cables ≤ ∅ 21 mm 

Tied cable bundle ≤ ∅ 100 mm 

Seal depth (t A ) 

(mm) 

Other criteria 

Description 

EI 120 ≥ 200 Minimum distances: 

All sheathed cables ≤ ∅ 80 mm 

EI 60 ; E 120 

EI 90 ; E 120 

EI 60 ; E 120 

≥ 112 

≥ 200 

≥ 150 

min S1 = 0 mm (cable tray to seal edge) 

min S2 = 50 mm (cable to cable tray) 

min S2 = 33 mm (cable to cable bundle) 

min S2 = 0 mm (cable to cable) 

Steel conduit ≤ ∅ 16 mm EI 120 U/U ≥ 200 

Framing details see specific drawings 

EI 90 U/U; E 120 ≥ 112 

below. 

Plastic conduit ≤ ∅ 16 mm EI 120 U/U ≥ 112 

Blank, no services EI 120 ≥ 200 

Cable, cable bundle in flexible wall, rigid wall 

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page 4 Hilti Firestop Foam CFS-F FX | Issue 06/2010 

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Cable penetration 

Floor 


Rigid floors (E) (concrete, minimum density 2200 kg/m 3 ), minimum thickness 150 mm (t E ). 

Cable | Cable tray 

Conduits | Tubes 

Penetration seal (A) /services (C) Classification 

E = Integrity 


Small sheathed cables ≤ ∅ 21 mm 

Tied cable bundle ≤ ∅ 100 mm, 

single cable ≤ ∅ 21 mm 

Seal depth (t A ) 

(mm) 


Description 

EI 120 ≥ 250 Minimum distances: 

EI 60 ≥ 150 

All sheathed cables ≤ ∅ 80 mm EI 60; E 120 ≥ 150 

Medium sheathed cables ∅ 21 – 50 mm EI 120 ≥ 250 

Large sheathed cables ≤ ∅ 80 mm EI 90; E 120 ≥ 200 

EI 60; E 120 ≥ 150 

Steel conduit ≤ ∅ 16 mm EI 120 U/U ≥ 150 

Steel and plastic conduits ≤ ∅ 16 mm 

Cable, cable bundle in floor Framing floor 

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min S 1 = 0 mm (cable tray to seal edge) 

min S 2 = 50 mm (cable to cable tray) 

min S 2 = 33 mm (cable to cable bundle) 

min S 2 = 0 mm (cable to cable) 


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Pipe penetration 

Flexible wall | Rigid wall 

Metal pipe 

Penetration seal (A) / 

services (C) 

Steel pipe 

≤ ∅ 33.7 mm (dc ) 

(pipe wall thickness 

2.6 – 14.2 mm (tc )) 

Steel pipe 

∅ 33.7 – 114.3 mm (dc ) 


2.6/3.6 – 14.2 mm (tc )) 

Steel pipe 

∅ 33.7 – 114.3 mm (dc ) 


2.6/3.6 – 14.2 mm (tc )) 

Copper pipe 

∅ 28 – 88.9 mm (dc ) 


1.0/2.0 – 14.2 mm (tc )) 

Pipe insulation (D) Classification 

E = Integrity 


Mineral wool 

(Rockwool RS 800) 

t D = 30 mm / L D = 500 mm 

Mineral wool 


t D = 40 mm / L D = 500 mm 

Combustible insulation 

(synthetic rubber 

Armaflex) 

tD = 19 mm / LD = 500 mm 

Mineral wool 


tD = 40 mm / LD = 500 mm 



Armaflex) 

tD = 19 mm /LD = 500 mm 

Minimum seal 

depth (t A ) (mm) 







Plastic pipe 

PVC-U pipe (EN 1452-1, 

DIN 8061/8062) ∅ 50 mm 

(dc ) (pipe wall thickness 

3.7 – 5.8 mm (tc )) 

PE pipe (EN 1519-1, DIN 

8074/8075) ∅ 50 mm (dc ) 


2.9 – 4.6 mm (tc )) 


Description 

EI 120 C/U ≥ 150 Minimum distances: 

min S 1 = 0 mm 

(between pipe and seal edge) 


(linear arrangement) 

min S 2 = 40 mm 

(in a cluster) 

EI 90 C/U; E 120 ≥ 150 Installed with 2 layers Hilti 

Firestop Bandage CFS-B on 

both sides (according to ETA 

CFS-B (A2)) 

EI 60 C/U; E 120 ≥ 150 

EI 60 C/U ; E 120 ≥ 150 Installed with 2 layers Hilti 




– EI 120 U/C ≥ 150 Minimum distances: 

min S1 = 30 mm 



– 

(between pipes) 

Metal pipe, mineral wool insulation in flexible wall, rigid wall 

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Pipe penetration 

Floor 

Metal pipe 


services (C) 

Steel pipe 

≤ ∅ 33.7 mm (dc ) 


2.6 – 14.2 mm (tc )) 

Steel pipe 

∅ 33.7 – 114.3 mm (dc ) 


2.6/3.6 – 14.2 mm (tc )) 

Steel pipe 

∅ 114.3 – 168 mm (dc ) 

(pipe wall thickness 3.6 – 

14.2 / 14,0 – 14.2 mm (tc )) 

Steel pipe 

∅ 33.7 – 114.3 mm (dc ) 


2.6 – 3.6 mm (tc )) 

Copper pipe 

∅ 28 – 88.9 mm (dc ) 


1.0/2.0 – 14.2 mm (tc )) 


E = Integrity 


Mineral wool 


t D = 30 mm / L D = 500 mm 

Mineral wool 


t D = 40 mm / L D = 500 mm 

Mineral wool 


t D = 40 mm / L D = 500 mm 



Armaflex) 

tD = 19 mm / LD = 500 mm 

Mineral wool 


tD = 40 mm / LD = 500 mm 



Armaflex) 

t D = 19 mm /L D = 500 mm 

Minimum seal 




Rigid floors (E) (concrete, minimum density of 2200 kg/m 3 ), minimum thickness 150 mm (t E ). 

Plastic pipe 


DIN 8061/8062) 

∅ 50 mm (dc ) 


3.7 – 5.6 mm (tc )) 


DIN 8061/8062) 

∅ 50 mm (dc ) 


3.7 mm (tc )) 

PE pipe (EN 1519-1, DIN 

8074/8075) ∅ 50 mm (dc ) 


2.9 – 4.6 mm (tc )) 


Description 

EI 120 C/U ≥ 150 Minimum distances: 

min S 1 floor = 20 mm 



(linear arrangement) 


(in a cluster) 

EI 120 C/U ≥ 150 

EI 120 C/U ≥ 150 Installed with 2 layers Hilti 




EI 120 C/U ≥ 150 Installed with 2 layers Hilti 




EI 90 C/U; E 120 ≥ 150 Installed with 2 layers Hilti 




– EI 120 U/C ≥ 150 Minimum distances: 




(between pipes) 

– EI 120 U/C ≥ 150 

– EI 120 U/C ≥ 150 



Metal pipe with mineral wool insulation in floor 

Metal pipe, combustible insulation in floor 

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Mixed penetration 

Flexible wall | Rigid wall | Floor 

Mixed penetration | cable | bundle | tray | metal | plastic pipe 


services (C) 

All sheathed cables ≤ ∅ 80 mm 

(e.g. power, control, signal, 

telecommunication, data, 

optical fibre cables) 

Tied cable bundle (≤ 100 mm), 

maximum diameter of single 

cable ∅ 21 mm 

Steel conduits or tubes 

∅ 16 mm 

Steel pipe ∅ 33.7 – 114.3 (dc ) 


2.6/3.6 – 14.2 mm) 

Copper pipe 

∅ 28 – 88.9 mm (dc ) 


1.0/2.0 – 14.2 mm) 

Steel pipe 

∅ 33.7 – 114.3 mm (dc ) 


2.6/3.6 – 14.2 mm) 

Copper pipe 

∅ 28 – 88.9 mm (dc ) 


1.0/2.0 – 14.2 mm) 

PE pipe (EN 1519-1, 

DIN 8074/8075) ∅ 50 mm (dc ) 

(pipe wall thickness (tc ) 

2.9 – 4.6 mm) 


DIN 8061/8062) ∅ 50 mm (dc ) 

(pipe wall thickness (tc ) 

3.7 – 5.6 mm) 


E = Integrity 


Mineral wool 

(Rockwool RPS 800) 

tD = 40 mm / LD = 500 mm 

Mineral wool 

(Rockwool RPS 800) 

tD = 40 mm / LD = 500 mm 



Armaflex) 

tD = 19 mm /LD = 500 mm 



Armaflex) 

tD = 19 mm /LD = 500 mm 

Minimum seal 









Rigid floors (E) (concrete, minimum density of 2200 kg/m 3 ), minimum thickness 150 mm (t E ). 

Mixed penetration 

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Description 

EI 60 / E 120 ≥ 150 Cable support construction 

perforated metal cable tray 

minimum distances: 


(cable to seal edge) 

min S 2 = 35 mm 

(between cable and pipe) 

min S 1 = 0 mm (between metal 

pipe and seal edge) 

min S 2 = 0 mm (between metal 

pipe and linear arrangement) 

min S 2 = 40 mm 

(cluster arrangement) 

min S 1 = 30 mm (between 

plastic pipe and seal edge) 

min S 2 = 55 mm (between 

plastic pipe and metal pipe) 

Installed with 2 layers Hilti 





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Characteristics of CFS-F FX 

Additional Attributes 

Hilti Firestop products are comprehensively tested and individually tailored to 

the technical requirements of a building’s mechanical and electric installations. 

In addition to their superior behaviour in passive fire protection, Hilti Firestop 

products also meet the requirements in building technology that continue to gain 

significance and also help the designer and installer in meeting these additional 

requirements. The assessment of fitness for use has been made in accordance 

with EOTA ETAG No 45% 45% 

30 30 

years years 

026 – Part 2. 

Charecteristics Assessment of charecteristics Norm, standard, test 

Health and the environment 

Air permeability 

(gas thightness) 

∆ p 50 Pa ⇒ 0.0007 q/A [m 3 /(h x m 2 )] 

(174 mm thickness of layer) 

∆ p 250 Pa ⇒ 0.0007 q/A [m3 /(h x m2 Air-seal/Luftdichtheit )] 

Permeability regarding gases N 2 , 

CO 2 , CH 4 : tested 

Dangerous substances below any respective occupational 

exposure limits as far as such limits exist FM 

APPROVED 

Safety in use 

Soft body impact: Energy 1200 Nm 

Resistance to impact / movement / 

Hard body impact: Energy 10 Nm 

Mechanical resistance and stability / 

Adhesion 

fullfills requirements of zones Type I, II, III 

and IV 

maximum opening 400 x 400 mm 

Protection against noise 

(Air borne sound insulation) 

Rw (C; Ctr) = 47 (–1; –6) dB 

Dn,e,w (C; Ctr) = 54 (–0; –5) dB 

Durability and serviceability Category Y2 (suitable for penetration seals 

intended for use at temperatures between 

– 20 ° C and + 70 ° C) no exposure to rain 

or UV 

May be coated with acrylic dispersion, alkyd 

resin, polyurethan / acrylic and epoxy resin) 

EN 1026 

British Standard 

Material safety BS data 476 sheet 

EOTA Technical Report 

TR001, A1 

Reaction to fire Class E EN 13501-1 

Service 

Bauchemie Bauchemie Piktos_neu.ai Piktos_neu.ai 

05.11.2007 05.11.2007 

With more than 20 years of experience worldwide, Hilti is one of the leading suppliers of 

firestop systems. We actively help you manage your firestop projects better by providing: 

• Quick engineering judgements 

• Extensive technical literature 

• On-site training and demonstration 

• Sophisticated jobsite logistics 

• Assurance of conformity with specific application requirements 

• International network of Hilti firestop specialists 

Our network of experienced sales representatives, field engineers, firestop specialists 

and customer service representatives is just a phone call away (use the local toll-free 

Hilti number). 

30 

Rauch- und Gasdichtigkeit Rauch- Wasserbeständigkeit und Schallschutz 

Gasdichtigkeit Schallschutz Elektische 

Wasserbeständigkeit Wasserbeständigkeit Elektische 

Elektische Dampfdichtigkeit Dampfdichtigkeit Wärmedämmend Wärmedämmend 

Air-seal/Luftdichtheit 

Air-seal/Luftdichtheit 

EN ISO 140-3 

EN ISO 20140-10 

EN ISO 717-1 

EOTA Technical Report TR024 

ETAG 026-2 


Jahre 

30 

Jahre 

FM FM 

C US 

Bauchemie Piktos_neu.ai 

05.11.2007 

45% 

FM 

Factory Mutual APPROVED Factory Mutual 

C US 

30 

years 


BS 476 

30 

Jahre 

FM 

APPROVED 

FM 

Factory Mutual 

C US 

Rauch- und Gasdichtigkeit 

Schallschutz 

Dampfdichtigkeit Wärmedämmend 


BS 476




page 14 Hilti Firestop Foam CFS-F FX | Issue 06/2010




Hilti. Outperform. Outlast. 

Hilti page Corporation 16 | 9494 Schaan | Liechtenstein | P +423-234 2111 | F +423-234 2965 Hilti | www.hilti.com 

Firestop Foam CFS-F FX | Issue 06/2010 

Hilti = registered trademark of Hilti Corp., Schaan I W 0000 0510 0-en I 2 Printed in Liechtenstein I © 2010 I Right of technical and programme changes reserved S. E. & O.

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