Fire Rated Gap Filling
Passive fire protection systems require a fire rated expanding foam to fill large gaps during the installation of fire-retardant window and door frames.
Soudafoam FR HY is our high-yield fire rated expanding foam. With rapid curing and excellent thermal and acoustic insulation properties, the one-component PU foam is fire-resistant for up to 4 hours depending on the joint configuration.
Step by Step Guide
1. Prepare the doorpost and the wall
Remove dust and grease from the surfaces. Moisten the wall and the doorpost with a spray bottle filled with water.
2. Shake the spray can vigorously
Put on protective gloves and safety glasses. Shake the spray can for 20 seconds. Open the valve of the Genius Gun and raise the applicator straw.
3. Fill the opening between the doorpost and wall
Hold the spray can upside down and spray Soudafoam FR HY in the opening between the wall and the doorpost. Fill the opening approximately 1/3, the foam will further expand to fill the remaining space. Make sure to shake the can regularly if you are filling a deep or large space, ensuring you moisten the area between layers.
4. Leave to dry and remove excess
Leave the foam to dry for 1.5 to 2 hours. Cut off the foam where you have used too much.
Tip:
- Non-cured PU foam can be removed with either acetone or Soudal PU Foam Cleaner.
- If you have sprayed too much in one go, allow the PU foam to harden, then remove excess using a retractable knife.
- Hardened foam can only be removed mechanically. On non-porous surfaces, you can first make the foam a little softer with Soudal PU Remover.
- Always work in a well-ventilated space. If this is not possible make sure to wear an appropriate gas mask while working.
- A PU foam can be easily applied with one hand thanks to the Genius Gun applicator. You can also control the amount you use much easier and then re-use the can for up to 6 weeks. That is handy if you only want to do a few small jobs around the home.
You can find the technical sheet and all information about the use, shelf life, composition of Soudafoam FR HY by visiting the product page.
Standards and certificates
- Tested according to standard EN 1366-4 for fire-resistant jointing
- Classification report according to EN 13501-2 by Warrington Exova (report nr. 19660B) and in combination with fire-resistant sealants (19660C)
- Sound insulation (EN ISO 717-1) - Test report 20-002317-PR01 PB 01-K05-04-en-03 (IFT Rosenheim)
It is the users responsibility to ensure suitability of the product for the window/door configuration used within the passive fire protection system.
Requirements