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ASTROflame manufacture intumescent passive fire protection products.

Intumescent Expansion Joint Seals

Trade Name: ASTRO EJ SEAL

Intumescent expansion joint seals product range

Expansion joint seal in situ

BS476: Part 20

PR EN1336-4

Up to 4 hours fire resistance

Weather proof & water resistant

Suits internal/external applications

Cost effective to install

Performance temperature between -30 to +130°c

Available in a wide range of sizes up to 100mm

 

 

Description

The sub-division of compartments in a building - if effectively fire stopped - will prevent the spread of fire and smoke through fire resisting and separating elements. All expansion and movement joints in a fire separating wall and floor must be fire stopped with a proprietry material that will accommodate the require movement whilst providing the necessary degree of fire integrity.

The ASTROflame Intumescent Expansion Joint Seal is manufactured using various thickness of flame retardant open cellular foam, fire rated to achieve Class 1 and Class 0 when tested to BS476 Part 20. Expandable graphite based intumescent is factory sprayed onto both sides of the foam, forming a compressible fire resistant joint filler which is resistant to moisture attack.

The graphite based material starts to intumesce around 115 ° C on the fire side of the joint whilst the fire rated foam gradually compresses allowing the expanding mass of intumescent graphite to totally seal the opening.

This carbonaceous char formed by the graphite will prevent the spread of fire through the joint thus ensuring the integrity of the compartment wall/floor is maintained.

Areas of Use

Between steelwork and blockwork where deflection and movement could occur
  • In movement joints with blockwork walls and floors.
  • Top of wallhead to the underside of the floor - although gaps could be uneven ASTROflame Intumescent Expansion Joint Seal is extremely compressible and should accommodate any irregularities.
  • Expansion Joint is an extremely versatile filler material.

Availability

Gap Width Product Ref for Gap Size in Relation to Period of Fire Resistance
  90 min 120min 180 min 240 min
10mm EJSI0/90 EJSI0/120 EJSI0/180 EJS10/240
20mm EJS20/90 EJS20/120 EJS20/180 EJS20/240
30mm EJS30/90 EJS30/120 EJS30/180 EJS30/240
40mm EJS40/90 EJS40/120 EJS40/180 EJS40/240
50mm EJS50/90 EJS50/120 EJS50/180 EJS50/240
60mm EJS60/90 EJS60/120 EJS60/180 EJS60/240
70mm EJS70/90 EJS70/120 EJS70/I80 EJS70/240
80mm EJS80/90 EJS80/120 EJSS80/180 EJS80/240
90mm EJS90/90 EJS90/120 EJS90/180 EJS90/240
100mm EJS100/90 EJS100/120 EJS100/180 EJS100/240

Ordering Example: To specify for a gap width of of 40mm with a 120 minute resistance order EJS40/120. When ordering please state product reference and number of metre lengths required. Supplied by the metre.

Packing

Sold individually.

To Order & Specify

To order or specify: Quantity / Trade name / Product Ref / Size (Width in mm) / Fire Rating.

Typical wording: 20 / ASTRO EJ SEAL / EJS 40/120 / 40mm / 2 HOUR

Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practises should be observed.

Installation

Installation is easily effected by compressing the pre cut ASTROflame Intumescent Expansion Joint Seal and inserting into the joint and releasing. A minimum compression of 15% per thickness of material is recommended to ensure a rigid friction fit.

 

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.

 

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