INTUMESCENT EXPANSION
JOINT SEAL
Trade Name ASTRO EJ Seal 
Introduction
The purpose of this document is to give guidance to approved contractors
and suppliers who are engaged in the fire stopping of service penetrations
in walls and floors using the Astro EJ SEAL.
All service holes through floors and compartment walls must be fire stopped to prevent the passage of fire, smoke and hot gases.
The key points for intumescent passive fire protection products are :-
- Prevent the spread of fire, smoke and hot gases through a building by containing it in the compartment of origin.
- Maintain the integrity of escape routes from a building.
- Reduce loss or damage to property from the effect of fire and smoke.
- Maintain pressure differential between compartments and ventilation channels.
THE ASTRO EJ SEAL SYSTEM
Astroflame EJ seal is a flexible and compressible fire retardant foam strip which is factory coated with a heat reactive intumescent, and is designed to maintain the fire resistance of compartment walls and floors where designed movement / expansion joints are required.At normal temperatures the Astro EJ Seal remains flexible to permit thermal,mechanical and seismic movements between joints in a building structure.
Gap widths up to 100mm wide can be accommodated, and ASTRO EJ SEAL is
supplied in easy to handle lengths of 1 Metre. The graphite intumescent
is unaffected by atmospheric moisture making it suitable for use in areas
of high humidity or moisture content
The joint surfaces must be clean, dry and free from any debris and dust should be removed
Check that the section size of the Astro EJ Seal is correct for the gap
width and fire rating required
Ensure that the void into which the Astro EJ Seal is to be installed is
free from debris throughout the full length.
Clear any obstructions within the void prior to commencing installation.
Compress the Astro EJ Seal sufficiently to enable the section to be positioned within the void central to the thickness of the blockwork and remain in place supported be its own compression.
To ensure the integrity of the seal over its full length, Astroflame Intumescent mastic or ASTRO FR Silicone mastic can be applied to all butt joints between each 1 metre length of ASTRO EJ Seal. The mastics can also be used on the edge to ensure the product does not move or fall away.
ASTRO FR Silicone or Astroflame Intumescent mastic can also be applied to the exposed face of the joint if required.
| PRODUCT CODES |
Product Ref for Gap Size in Relation to Period of Fire Resistance |
||||
| Gap Size | 60 min | 90 min | 120min | 180 min | 240 min |
| 10mm | EJS I0/60 | EJS I0/90 | EJS I0/120 | EJS I0/180 | EJS 10/240 |
| 20mm | EJS 20/60 | EJS 20/90 | EJS 20/120 | EJS 20/180 | EJS 20/240 |
| 30mm | EJS 30/60 | EJS 30/90 | EJS 30/120 | EJS 30/180 | EJS 30/240 |
| 40mm | EJS 40/60 | EJS 40/90 | EJS 40/120 | EJS 40/180 | EJS 40/240 |
| 50mm | EJS 50/60 | EJS 50/90 | EJS 50/120 | EJS 50/180 | EJS 50/240 |
| 60mm | EJS 60/60 | EJS 60/90 | EJS 60/120 | EJS 60/180 | EJS 60/240 |
| 70mm | EJS 70/60 | EJS 70/90 | EJS 70/120 | EJS 70/I80 | EJS 70/240 |
| 80mm | EJS 80/60 | EJS 80/90 | EJS 80/120 | EJS S0/180 | EJS 80/240 |
| 90mm | EJS 90/60 | EJS 90/90 | EJS 90/120 | EJS 90/180 | EJS 90/240 |
| 100mm | EJS 100/60 | EJS 100/90 | EJS 100/120 | EJS 100/180 | EJS 100/240 |
Nominal dimensions: 60 minute rated seal is identical to 90 minute rated seal.
| 60 min | 90 min | 120min | 180 min | 240 min | |
| Gap Size |
depth in mm |
depth in mm |
depth in mm |
depth in mm |
depth in mm |
| 10mm |
25 |
25 |
25 |
35 |
40 |
| 20mm |
25 |
25 |
30 |
40 |
50 |
| 30mm |
25 |
25 |
35 |
45 |
50 |
| 40mm |
30 |
30 |
35 |
45 |
55 |
| 50mm |
35 |
35 |
45 |
60 |
75 |
| 60mm |
35 |
35 |
45 |
60 |
90 |
| 70mm |
40 |
40 |
50 |
75 |
105 |
| 80mm |
40 |
40 |
50 |
85 |
105 |
| 90mm |
45 |
45 |
55 |
85 |
105 |
| 100mm |
50 |
50 |
60 |
85 |
105 |
Compliance
Astro EJ SEALS are manufactured in the EU, meeting the highest quality standard in compliance with ISO EN 9001:2000 . For fire test certification contact Astroflame Fireseals technical department.
Fire Test or Assessment Reports
BS Standard 476 Part 20
Report no : C 201815
Storage and disposal
Astro EJ Seals are not affected by the outdoor environment. However for long term storage and ease of installation, it is recommended that they should be stored indoors. No shelf life is given as this product will not deteriorate in storage.
For additional testing, certification or technical information please
contact ASTROFLAME FIRESEALS LTD.
Issue 01/03
Astroflame (Fire Seals) Ltd. Intumescent
House Unit 8, The IO Centre, Stephenson Road, Segensworth FAREHAM, ENGLAND PO15 5RU |
|
tel 0800 023 2482 (01329 844500) |
fax 0800 023 2483 (01329 844600) |
intl tel +44 1329 844500 |
fax +44 1329 844600 |
email sales@astroflame.com |
|
This is a test link - email sales@Astro flame.com
As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as ASTROFLAME FIRESEALS LTD has no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.
The above information
to the best of our knowledge is true and accurate and based upon current
test data and is supplied for your guidance only. Customers should
satisfy themselves
to the suitability of the product in its intended use and no guarantee
is given or implied since the conditions of actual use are beyond
our control. ASTROflame (Fireseals) Ltd, disclaim any liability for
loss, damage or other expense arising from the use of information,
data or products mentioned or referred to and reserve the right to
change any details or specifications without notice.
