In this article you can read everything about PU foam from Froth-Pak. We explain to you what the benefits of Froth-Pak are and what you need to process it. We have also created an extensive step-by-step plan in which we explain step by step how to best process Froth-Pak.
Do you have questions about insulation, PU foam or Froth-Pak? Please feel free to contact our specialists!
Froth-Pak is a sprayable PU foam with a closed cell structure for perfect insulation. Dupont Froth-Pak has a high insulation value and adheres to almost any surface. Due to the unique system, you don't need pumps, compressors or other machines to use Froth-Pak. Heat the cylinders, simply connect the hoses together and you are ready to process the sprayable PU foam!
In addition to the simple processing and unique packaging, the sprayable Froth-Pak PU foam has many more benefits, including:
Froth-Pak is used for many different insulation applications in homes, business premises, boats, sheds, etc. Some examples of projects with Froth-Pak:
Froth-Pak comes in a package with two cylinders: Isocyanate (red) and Polyol (blue). The PUR foam is supplied as a complete system in the following volumes:
When using insulation foam, it is necessary that you have the right products at home. At Polyestershoppen you will find all the necessary materials to be well prepared to get started with the sprayable PU foam from Froth-Pak. Always use the following products:
Follow these steps while processing Froth-Pak:
Good preparation is very important when you start working with Froth-Pak. Therefore, make sure you have the right materials at home.
For proper functioning of the foam with maximum efficiency, it is necessary to preheat the Froth-Pak set. Therefore, ensure that the temperature of the cylinders is at least 24°C but at most 40°C. Is the temperature of the packaging too low? It may then happen that one of the pipes becomes clogged, causing the PUR foam to be of lower quality or not even harden. Therefore, always use a Froth-Pak heating jacket (even in the summer months).
Start preheating on time. It can take quite a while before the contents are really warm. We recommend turning on the heating mantle at least a day in advance.
Prepare the space you are going to insulate well and mask off everything that you do not want PU foam on. Use protective foil and masking tape for this. In addition, make sure that the room is dry and grease free. It is not possible to spray PU on a damp surface or on a surface with condensation or grease residue.
Once cured, Froth-Pak is completely safe. However, it is important to protect yourself well during processing. Therefore, always work safely and use the correct personal protective equipment when working with polyurethane foam.
Always wear old clothing, (disposable) overalls with a hood, safety glasses, gloves and a vapour mask with A2 filters.
Are the cylinders preheated, is the area masked off and are you wearing the correct protective equipment? Then you continue with connecting the Froth-Pak set. Follow the following steps:
The set is now ready for use!
First apply a thin adhesive layer to the surface. This ensures that the next layer adheres better. Use a quick, sweeping motion to apply a thin layer. Use a blue nozzle to apply the adhesive layer.
Once you have provided the surface with an adhesive layer, continue by applying a thick insulating layer of approximately 5 cm.
Connect a new white nozzle and treat the surface again. It is possible to apply this layer with a blue nozzle if you prefer to work in thin layers. Spray in a slow, sweeping motion to create a thick layer of insulation. This way you spray approximately 1 to 1.5 cm thick. Only spray the next layer after a few minutes once the first layer has hardened.
Replace the nozzle as soon as you notice that it produces less output. Then less PU comes out of the gun. If you replace the nozzle, you will immediately notice a difference! Also replace the nozzle if you stop spraying for more than 30 seconds because the nozzle becomes clogged by the solidifying polyurethane foam.
Keep an eye on the colour of the foam. Does the foam suddenly turn white? Then the ISO pipe is clogged (the red pipe). Remove the nozzle, spray briefly and install a new nozzle. Test regularly whether the foam hardens properly.
Please watch our Trouble shooting video with useful tips for solving problems.
Have you treated the entire space with a thick layer of PU foam? Then you let the material harden for an hour. Make sure you continue to ventilate the room well in the meantime. After an hour, remove all tape and covering foil. You can easily remove excess PU foam with a saw, snap-off knife or putty knife. Now finish the insulated space as desired.
Prepare the area and cover it properly. Tape the protective foil securely so that you cannot accidentally pull it off.
Make sure that you always have a number of important materials within reach during processing. This way you don't waste time searching if you suddenly need them. Always keep the following materials within reach:
Choose the right nozzle for spraying the PUR foam. The nozzles have different colors and are for different applications:
Make sure you always order enough nozzles so that you don't run out.
Relax and stay calm while working with Froth-Pak. Read carefully, make a plan in advance and don't let time pressure rush you. This way you work in a structured way and you can easily deal with setbacks, such as blockages.
Do you have questions about Froth-Pak or can we advise you on your project? Please feel free to contact our specialists. We will help you make your project successfull!
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