Soudal Gap Filler Expanding Foam

Soudal Gap Filler Expanding Foam is a high performance one component polyurethane foam designed for easy application with the included hand held nozzle. This champagne coloured foam is specifically developed to fill and seal large gaps, voids, and joints where traditional fillers are insufficient. It provides exceptional thermal and acoustic insulation, making it an ideal choice for sealing around window and door frames, pipe penetrations, and wall cavities. The moisture curing formula ensures a durable seal that adheres well to most common construction materials including brick, concrete, wood, and metal.

Key Product Features

This product is a Home Pest Protection agent. It features High Expansion properties to fill irregular voids completely. It provides Superior Thermal Insulation for energy efficiency. It offers Excellent Acoustic Insulation to reduce noise transfer. It is a Moisture Resistant formula once cured. It is a Hand Held Application with a convenient straw nozzle. It has a fast Skin Formation time of about ten minutes.

Directions for Use

For Prepare, Ensure surfaces are clean, free from grease, and slightly moistened with a water spray to improve expansion and cell structure. For Application, Shake the can vigorously at least twenty times before use. Screw the applicator straw onto the valve and hold the can upside down during application. For Filling, Fill gaps only about one third full as the foam will expand significantly to fill the remaining space. For Finishing, If applying in layers, moisten between each layer. Once fully cured, the excess foam can be cut, sanded, or plastered.

Usage and Maintenance

This expanding foam should be stored in a cool and dry environment in an upright position at all times to prevent the valve from blocking. The cured foam can be trimmed with a sharp knife after approximately one hour depending on temperature and humidity. It is essential to protect the cured foam from sunlight by painting, staining, or covering it with a sealant. The nozzle and valve can be cleaned with a dedicated foam cleaner immediately after use if the can is not empty.

Advantages and Disadvantages

A major advantage is the high expansion rate which allows a single five hundred millilitre can to fill large volumes efficiently, providing both sealing and insulation in one step. The hand held design eliminates the need for expensive application guns. A minor drawback is that the foam is sensitive to light and will discolour and degrade if left exposed without a protective coating. Users must be careful not to overfill gaps as the expansion force can potentially distort light weight frames or structures.

Cautions

Highly flammable aerosol container under pressure. Keep away from heat, sparks, and open flames. Wear protective gloves, eye protection, and clothing during application as the foam is extremely sticky and difficult to remove from skin. Use only in well ventilated areas to avoid breathing in vapours. Keep out of the reach of children. Store between five and twenty five degrees Celsius.

FAQs

Q: How long does it take for the foam to cure?

A: The foam typically becomes tack free in ten minutes and can be cut or trimmed after about one hour.

Q: Can I paint over the foam once it is dry?

A: Yes, once fully cured, the foam can be sanded, painted, or plastered to match the surrounding surface.

Q: Does the foam stick to all surfaces?

A: It has excellent adhesion to most building materials but will not adhere well to teflon, polyethylene, or silicone surfaces.

Q: How much expansion should I expect?

A: The foam expands significantly, so you should only fill the gap to one third of its volume.