Soudal Soudafoam 2K - Two-Component Fast Curing Expanding Foam

Substrate Suitability:

Soudafoam 2K can be used on a broad range of construction materials, thanks to its exceptional primerless adhesion capabilities. It adheres well to surfaces such as concrete, wood, plastic, and metal, ensuring reliable and long-lasting results.

Surface Preparation:

To ensure optimal performance, the surface should be clean and free of grease and dust. Grease and dust can interfere with the product's adhesion and performance. Therefore, thoroughly clean the surface before applying Soudafoam 2K.

Application Method:

1. Recommended Can Temperature: The can should be stored and used between 10°C - 25°C.
   
   

2. Prepare the Area: Before activating the can, make sure that doors and/or windows are properly positioned to avoid obstructions during application.
   
   

3. Activate the Can: Turn the inner black disk on the bottom of the can 5 times to the right. This motion punctures the seal, allowing the components to mix.
   
   

4. Shake the Can: Firmly shake the can for at least 20 times, ensuring the valve is pointed down. This agitation helps to ensure proper mixing of the components.
   
   

5. Attach the Applicator: Apply the applicator onto the valve.
   
   

6. Apply the Foam: Point the valve downward and start applying the foam. The foam will expand upon contact, so be prepared to control the foam and adjust the coverage as needed. The extruded foam should have a solid light-green color. If not, repeat the activation steps.
   
   

7. Finish and Clean: To avoid curing inside the can, it is essential to completely empty the can within 5 minutes after the mixture of the components. If necessary, cover and tape up the substrate and adjacent materials. Fill the joint for 1/3, as the foam will expand further during curing.

Cleaning:

• Spilled Foam: Immediately remove spilled foam with Soudafoam Gun & Foam Cleaner. This specially formulated cleaner is designed to dissolve and remove uncured foam quickly and effectively.
  
  

• Cured Foam: If the foam has cured, it must be removed mechanically or with Soudal Cured PU Foam Remover. This remover is specifically designed to dissolve cured foam, making it easier to remove from surfaces.

Health & Safety Recommendations:

Take the usual labour hygiene into account.

Always wear gloves and goggles during application. See our Safety & PPE Products.

Consult label and material safety data sheet for more information.

Q) How do I activate Soudafoam 2K before application?

A) To activate Soudafoam 2K, follow these steps: First, ensure the can is at room temperature for optimal performance. Turn the inner black disk located at the bottom of the can five times to the right. This action punctures the internal seal, allowing the base and isocyanate components to mix. After puncturing the seal, shake the can vigorously for at least 20 times while holding the valve pointed downwards. This ensures the two components are thoroughly mixed and the foam is ready for application. Remember, once activated, Soudafoam 2K must be used within a short time frame to take advantage of its rapid curing properties.

Q) Can Soudafoam 2K be used for insulating around electrical outlets?

A) Yes, Soudafoam 2K can be used to insulate around electrical outlets due to its excellent thermal and acoustic insulation properties. However, ensure the electricity is turned off and avoid direct contact with wires or devices.

Q) Is Soudafoam 2K suitable for sealing around plumbing pipes?

A) Absolutely, it's ideal for sealing around plumbing pipes. Its rapid curing and expansion properties effectively fill gaps, providing airtight and watertight seals that prevent water and air leakage.

Q) Can this foam be applied in cold weather conditions?

A) Soudafoam 2K is best applied within its recommended application temperatures of +10°C to +25°C. While it can cure independently of atmospheric moisture, performance might be compromised in temperatures outside this range.

Q) How quickly does Soudafoam 2K cure?

A) Soudafoam 2K has a fast curing time, with skin formation occurring in about 9 minutes and cutting time in about 15 minutes. It becomes fully loadable after approximately 4 hours for a 30mm foam bead.

Q) Is Soudafoam 2K considered a closed-cell foam?

A) Technically yes, Soudafoam 2K Fast Curing Expanding Foam may be classified as a closed-cell foam, with its structure comprising approximately 81% closed cells once cured, according to ISO4590 standards. This high proportion of closed cells imbues the foam with superior thermal and acoustic insulation properties, as the air trapped within these cells acts as an effective barrier against heat transfer and sound waves. Additionally, the closed-cell nature of Soudafoam 2K enhances its water resistance, significantly reducing the foam's permeability to moisture. This characteristic not only prevents water ingress but also contributes to the foam's structural integrity and durability, ensuring it retains its shape and size without succumbing to shrinkage or expansion after curing. The closed-cell structure thus makes Soudafoam 2K an excellent choice for a wide array of applications requiring reliable insulation, moisture resistance, and long-term stability.

Q) Is it necessary to wear protective equipment while applying Soudafoam 2K?

A) Yes, wearing protective equipment such as gloves and eyewear is recommended to prevent skin and eye contact, as the foam's components can be irritative.

Q) Can Soudafoam 2K be used on wooden surfaces?

A) Yes, Soudafoam 2K adheres well to wooden surfaces, making it suitable for various woodworking and construction projects requiring thermal and acoustic insulation.

Q) How do I prepare the surface before applying the foam?

A) The surface should be clean, dry, and free from grease and dust. Grease and dust can interfere with adhesion. For porous surfaces, slight moistening may improve adhesion.

Q) What substrates is Soudafoam 2K not suitable for?

A) Soudafoam 2K is not recommended for bonding plastics like PMMA (Plexi® Glass) and Polycarbonate (Makrolon® or Lexan®) in stress-loaded applications. It also does not adhere to PE, PP, PTFE (Teflon®), and bituminous substrates.

Q) How do I activate Soudafoam 2K before use?

A) Turn the inner black disk on the bottom of the can 5 times to the right to puncture the seal, allowing the components to mix. Shake the can firmly for at least 20 times with the valve pointed down to ensure proper mixing.

Q) Can Soudafoam 2K be painted or coated?

A) Once cured, Soudafoam 2K can be painted or coated. It's advisable to perform a compatibility test with the paint or coating to ensure desired results.

Q) How much area can one 400ml can of Soudafoam 2K cover?

A) One 400ml can yields approximately 10 liters of foam, providing a joint yield of about 8 meters, depending on the size and depth of the area being filled or sealed.

Q) Is Soudafoam 2K resistant to water once cured?

A) Yes, cured Soudafoam 2K has low water absorption, making it resistant to water and suitable for applications exposed to moisture.

Q) Can I use Soudafoam 2K for filling large cavities?

A) Yes, Soudafoam 2K is suitable for filling large cavities due to its rapid expansion and curing capabilities. However, apply in layers for deep cavities, allowing each layer to cure before applying the next.

Q) What is the shelf life of Soudafoam 2K?

A) Typically, polyurethane foams like Soudafoam 2K have a shelf life of 12 months when stored properly in unopened containers at temperatures between +10°C and +25°C.

Q) How do I clean up uncured Soudafoam 2K spills?

A) Uncured Soudafoam 2K spills can be cleaned with Soudafoam Gun & Foam Cleaner. It's essential to clean spills immediately before the foam cures.

Q) What safety measures should be taken when using Soudafoam 2K?

A) Use in well-ventilated areas, wear appropriate personal protective equipment, and avoid contact with skin and eyes. Follow all safety instructions provided on the product label.

Q) Can Soudafoam 2K be used for thermal insulation in cooling systems.

A) Yes, its thermal conductivity properties make it suitable for insulating cooling systems, preventing energy loss and improving efficiency.

Q) How does Soudafoam 2K contribute to acoustic insulation in a building?

A) Soudafoam 2K's dense foam structure significantly reduces sound transmission through walls, floors, and ceilings, contributing to a quieter and more comfortable indoor environment by dampening external noise and internal echoes.

Q) Is Soudafoam 2K suitable for outdoor applications?

A) Yes, due to its excellent weather and UV resistance, Soudafoam 2K is suitable for outdoor applications. It maintains its integrity and performance when exposed to the elements, making it ideal for sealing outdoor gaps and openings.

Q) Can I apply Soudafoam 2K directly onto metal surfaces?

A) Soudafoam 2K adheres well to metal surfaces, providing a strong bond that is ideal for sealing and insulating tasks involving metal components.

Q) What is the best way to ensure a uniform application of Soudafoam 2K?

A) For a uniform application, apply the foam in a steady motion at a consistent speed, ensuring the foam is dispensed evenly. Utilise the applicator for precise control, and fill the joint or cavity to about one-third of its depth to allow for expansion.

Q) How should Soudafoam 2K be stored for optimal shelf life?

A) Store Soudafoam 2K in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the can is upright and the cap is securely fastened to prevent leakage and preserve the contents.

Q) Can Soudafoam 2K be sanded or trimmed after curing?

A) Yes, once fully cured, Soudafoam 2K can be sanded or trimmed to shape it as required for the application or to prepare it for finishing, such as painting or coating.

Q) How long should I wait before painting over cured Soudafoam 2K?

A) Allow Soudafoam 2K to cure fully, which typically takes about 4 hours for a 30mm foam bead, before painting. Check the foam's surface to ensure it's dry and solid to the touch.

Q) Is there any risk of Soudafoam 2K expanding too much and distorting the materials it's applied between?

A) Soudafoam 2K has high form stability with minimal post-expansion. Apply it correctly, filling the joint or gap to about one-third of its depth, to prevent excessive expansion and ensure materials remain undistorted.

Q) Can Soudafoam 2K be used to secure door frames without the need for mechanical fasteners?

A) Yes, Soudafoam 2K's excellent fixing capacities make it suitable for securing door frames, providing a strong bond that can eliminate or reduce the need for mechanical fasteners in some applications.

Q) Is Soudafoam 2K environmentally friendly?

A) Soudafoam 2K is formulated to be HCFC and CFC-free, reducing its impact on the ozone layer, making it a more environmentally friendly option compared to some other foams that contain these harmful propellants.

Q) What happens if Soudafoam 2K is applied too thickly in one application?

A) Applying Soudafoam 2K too thickly can lead to inadequate curing in the center of the foam mass due to the lack of atmospheric moisture. It's best to apply in layers, allowing each layer to cure properly, to avoid this issue.

Q) Can Soudafoam 2K be used to fill voids in brick walls?

A) Yes, Soudafoam 2K is effective in filling voids in brick walls, providing excellent insulation and sealing capabilities. Ensure the brick surface is clean and slightly moistened if porous, to improve adhesion.

Q) How can I remove cured Soudafoam 2K from my hands or tools?

A) Cured Soudafoam 2K needs to be removed mechanically, as it cannot be dissolved with solvents. Use a scraper or sandpaper for removal from tools, and for skin, a pumice stone or similar abrasive may help, followed by moisturising well.

Q) Is Soudafoam 2K resistant to pests like rodents and insects?

A) While Soudafoam 2K provides an airtight and watertight seal that can deter pests, it is not specifically formulated as a pest barrier. In areas prone to pest issues, additional pest control measures may be required.

Q) Can Soudafoam 2K be used in direct contact with water, like in a fountain or pool?

A) Soudafoam 2K is not designed for applications with continuous water immersion. For sealing applications involving constant water contact, look for products specifically formulated for such conditions.

Q) How does temperature affect the application of Soudafoam 2K?

A) Temperature can affect Soudafoam 2K's application and curing. It is best applied within its recommended temperature range (+10°C to +25°C) for optimal performance. Extremely low or high temperatures can alter the foam's expansion rate and curing time.

Q) Can Soudafoam 2K be used for insulating HVAC ductwork?

A) Yes, Soudafoam 2K can be used for insulating HVAC ductwork due to its excellent thermal properties. Ensure that the surface is clean and that the foam is applied in a manner that does not compromise the system's operation.

Q) How do I dispose of unused Soudafoam 2K cans?

A) Dispose of unused Soudafoam 2K cans according to local regulations for hazardous waste. Do not puncture or incinerate the cans, even when empty, to prevent potential hazards.

Q) Can Soudafoam 2K be used to seal around high-temperature pipes?

A) Soudafoam 2K withstands a wide range of temperatures once cured, but for high-temperature pipes that exceed its thermal resistance, consider using materials specifically designed to withstand higher temperatures.

Q) Is Soudafoam 2K paintable?

A) Yes, once fully cured, Soudafoam 2K can be painted over with most types of paint. However, always check the compatibility of the paint with polyurethane foam to ensure a proper finish.

Technical Data Sheet

Safety Data Sheet

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