Astroflame Passive Fire Protection Products

Trade Name ASTRO FR-EC Acoustic Foam

Fire Rated Acoustic Economy Foam.

Suitable for filling, sealing and
insulation of joints and gaps in a
variety of construction applications.

In Gun or Hand operated canisters.

Fire Resistance and Integrity to EN 1366-4.

Bonds well to most common construction materials.

Seals irregular gaps and joints.

Self curing : Forms a semi-rigid seal.

Tack free within 10 minutes, can
be cut or trimmed within 60 minutes.

Fire Rated construction foam


Note: This product is fire rated but is not intumescent.

A one component fire rated foam which expands to fill and seal gaps. Prevents the transmission of smoke, seals ground pipework, insulates against noise and excess temperatures, paintable.

For joints/gaps in compartment walls and floors, fire & acoustic sealing around lightweight partitioning, fire rated doors and service penetrations where the integrity and insulation of firewall needs to be maintained.

Forms a strong bond to concrete, brickwork, stone, plaster, wood, fibre, concrete, metal, PVC and polystyrene.

Up to 4 hour fire rating tested to BS EN 1366-4 (concrete-concrete/block-block joints of up to 40 mm in walls and floors) and DIN 4102 Pt 1 (B1).

The table below shows fire resistance and integrity for various applications - for more information please contact our technical support.

Foam EN ratings table.


Technical Specifications

The Gun Grade and the Hand Canister formulations are slightly different with regard to Compressive Strength and Elongation at Break - see tables below.

Fire Rated Foam Gun Grade.


Fire Rated Foam Hand Canister.

Fire Rated Foam Hand Grade.


Gun Grade (AFFRECFOAMGG) and Hand Canister (AFFRECFOAM) sold in 750 ml pressurised canisters individually or boxes of 12.

To Order & Specify

Please quote - Quantity / Trade name / Product ref / Product Code
Typical wording -


Fire Test or Assessment Reports

BS476 Part 20 : EN1366-4

Health and Safety

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


Always carry out a test to confirm compatibility prior to use. As with all PU foams, it does not bond to polythene, Teflon®, siliconised or wax-like surfaces.

• Protect floor coverings with paper or a plastic film.
• The surfaces must be dry, solid and stable.
• Remove all loose particles, dust and grease.
• A speedier cure can be attained by moistening the substrates if needed.

Shake the canister vigorously at least 20 times.

Remove the protective cap and screw canister onto a PU foam gun.

Direct foam into gap, pressing gently on the trigger to establish the correct flow rate.

Joints should be under-filled to allow for post expansion of the foam.

Fill to approximately 80% of joint depth for optimum results.

On horizontal surfaces always work away from the exuding bead and work upwards on all vertical surfaces.

When filling deep joints apply in layers, waiting until each layer has skinned and partially cured before applying the

Applying a light misting of clean water between each layer before subsequent application will assist adhesion and
cure speed.

Ensure any substrate requiring cleaning is solvent resistant before proceeding.

Cured foam can only be removed mechanically. Excess material may be trimmed off using a sharp knife or sanded down.

Please Note
This foam is not UV resistant and should be protected from sunlight with a suitable opaque sealant, filler or paint.


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
tel 0800 023 2482
(01329 844500)
fax 0800 023 2483
(01329 844600)
tel +44 1329 844500
fax +44 1329 844600



Email Astroflame