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 150mm
Certifire Approved
Suitable for cable trunkings
Description
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 laminated 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.
The 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
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In movement joints with blockwork walls and floors.
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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.
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Expansion Joint is an extremely versatile filler material.
Availability
Sold in One Metre lengths in a range of widths and depths to seal different gap dimensions.
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Gap Width
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Dimension of Seal
|
Integrity
|
Product Ref
|
|
up to 10mm
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12mmx25mm
|
240min
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AFEJ10/240
|
|
11mm to 20mm
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29mmx25mm
|
240min
|
AFEJ20/240
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|
21mm to 25mm
|
32mmx30mm
|
240min
|
AFEJ25/240
|
|
26mm to 35mm
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53mmx30mm
|
240min
|
AFEJ35/240
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|
36mm to 50mm
|
64mmx50mm
|
240min
|
AFEJ50/240
|
|
51mm to 75mm
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85mmx75mm
|
240min
|
AFEJ75/240
|
|
76mm to 100mm
|
126mmx125mm
|
240min
|
AFEJ100/240
|
|
101mm to 125mm
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147mmx125mm
|
240min
|
AFEJ125/240
|
|
126mm to 150mm
|
170mmx125mm
|
240min
|
AFEJ150/240
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Packing
Sold individually.
Fire Test or Assessment Report
Certifire Approved
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 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.
Ordering Example:
To specify for a gap width of 20mm order Gap Width Dimension 11mm to 20mm. In the shopping basket set the number of one metre lengths you require. Supplied by the metre.
