Fire Rated Expanding Construction Foam

 

 

 

 

 

 

 

DESCRIPTION:

Alfas Bond FR is a one component polyurethane (PU) foam packaged in aerosal form in-situ application. THe propellants used are CFC and (H) CFC free and have zero ozone depletion potential. THe product expands and cures on application through the absorption of moisture rom the atmosphere. The cured foam has a substantially closed cell structure throughout and hardens to a semi-rigid form which is both firm and yielding and yet can be trimmed using a sharp knife.

Alfas Bond FR is available in two types of canister: In-situ Grade (dispensed via a plastic nozzle) and a Gun Grade ( for use with the Alfas Bond FR applicator gun ). A dual purpose solvent and spray cleaner is available for cleaning the guns and ancillary equipment, details available upon request from the sales office.

TYPICAL USES:

Alfas Bond FR has excellent adhesive properties and once set, forms a strong bond to most building materials such as wood, brick, stone, cement, plaster, polystyrene, metals, and many plastics. This product acts as a fire seal for up to 4 hours when tested to BS476 Part 20 or for longer periods when used in conjunction with Alfasil FR, FR-2 or Alfacryl FR.

STORAGE:

Store between +5 dg C and 25 dg C in dry conditions upright and in original packaging. Shelf life approximately 9 months.

SURFACE PREPARATION:

No special surface preperation is required but surfaces in contact with the product must be clean and free from dirt and grease. Remove any loose particles by brushing. In dry conditions dampen the joint surfaces with clean water before application to assist adhesion and accelerate curing.

APPLICATIONS:

Shake the can thoroughly at least 20 times to mix the contents before use and repeat periodically during use. Follow the instructions printed on the canister label. Joints should be slightly under filled to allow for post expansion of the foam. When filling deep joints apply in layers, waiting until each layer has skinned and partially cured before applying the next. Applying a slight misting of clean water between each layer before subsequent application will assist adhesion and cure speed. The foam will be tack free in approximately 10 minutes and trimmable in 30 - 60 minutes depending on thickness, temperature and humidity.

LIMITATIONS:

Alfas Bond FR will not adhere to Teflon, polythene or silicone coated surfaces. Loose components may need to be clamped or secured in position at least until foam sets. Surrinding surfaces should be suitably masked and protective clothing worn. The cured foam is not UV resistant and should be protected with a suitable fire rated surface coating.

CHARACTERISTICS AND PROPERTIES:

Characteristic Units/Test Method Alfas Bond FR
Packaging

700ml x 12

Colour Light Grey
Flame Retardancy DIN 4102 Part 1 B1
Fire Resistance (Detailed independant test report available upon request)
BS 476 Part 20
10mm Vertical Joint
20mm Vertical Joint
> 4 hours
> 5 hours
> 4 hours
Free Rise Density Kg/m3 to DIN 53420 28 - 35
Compression Strength 10% deflection kPa to ISO 844 50
Elongation at break % to DIN 455 25
Closed Cell Structure % >60
NES 713 Toxicity index 7.58
Biological Resistance to attack by fungus insects or vermin
Tack Free Time Mins (at 23'C,55 % RH 8 - 13
Trimmable Time As above 40 - 60
Application Temperature 'C +5 to +25
Service Temperature 'C -40 to +90
Short Periods 'C -40 to +130
Tensile Strength KPa 80
Thermal Conductivity W/m/k 0.035

HEALTH AND SAFETY:

Harmful by inhaltion. Irritating to eyes, respiratory system and skin and may cause sensitisation by contact. In case of insufficient ventalition, wear suitable respiratory equipment. Do not spray on a naked flame or any incandescent material. keep away from sources of ignition - no smoking. Keep out if reach of children. Material safety data sheets are available upon request - and in view of the nature of this product should be carefully observed.

Whilst every care has been taken in the preparation of this information, no warranty is given or implied in connection with any recommendation or suggestion made herein. We reserve the right to modify specifications from time to time without prior notice. The user is advised to conduct his own tests in order to determine the suitability of the product for the intended purpose. All goods are supplied subject to standard Conditions of Sale which are available upon request.

TECHNICAL DATA SHEET (04/02)

Alfas Bond FR