The Soudal SWS (Soudal Window System), available at Platinum Chemicals, offers a comprehensive sealing solution designed for the installation of windows and doors. This system ensures optimal air and water tightness while also providing excellent thermal and acoustic insulation.

It is ideal for both new builds and renovation projects, compatible with various frame materials such as aluminium, wood, and PVCu. The SWS system is built to prevent drafts, water ingress, and heat loss, while meeting modern energy efficiency standards.

Three-Level Protection System

The Soudal SWS System is based on a three-level protection approach:

1. Weather Protection: Shields the building from external elements such as rain, wind, and UV exposure.
   
   

2. Thermal and Acoustic Insulation: Maintains internal comfort by reducing heat loss and noise infiltration.
   
   

3. Air and Vapour Tight Sealing: Prevents air leakage and moisture penetration, ensuring long-term structural integrity.

These three levels work together to create a robust barrier around windows and doors, improving the energy efficiency of a building and protecting its structural components.

Expanding Foams for Airtight Seals

One of the core components of the SWS system is Soudafoam Window & Door SWS Expanding Foam. This foam is designed to fill gaps and cavities around windows and doors, forming a flexible, airtight seal. It uses FLEXIFOAM technology, which ensures the foam remains flexible after curing, allowing it to accommodate the natural movement of the building and the window or door frame. The foam also offers excellent thermal insulation, reducing heat loss and improving energy efficiency.

The foam’s durability is enhanced by its resistance to water, UV rays, and extreme temperatures, making it suitable for use in all weather conditions. Additionally, the foam provides acoustic insulation, reducing the transmission of sound through window and door joints.

Liquid Membranes for Seamless Sealing

The Soudal SWS system includes liquid membranes such as Soudatight LQ and Soudatight Hybrid. These membranes are applied as a paste or liquid, which dries to form an airtight, vapour-tight, and flexible membrane. Soudatight LQ is a fibre-reinforced polymer paste that can fill cracks up to 5mm, ensuring a seamless seal in difficult areas like wall-to-window connections, floor-to-wall joints, and wall-to-ceiling joints. It can also be used in combination with Soudatextile, a non-woven fabric, for added reinforcement in larger gaps or joints.

Soudatight Hybrid offers similar performance but is also designed for exterior applications, providing an air- and rain-tight membrane that can withstand the elements. Both of these membranes can be painted or plastered over once cured, allowing them to blend into the surrounding surfaces and ensuring a clean, professional finish.

Pre-Compressed Foam Tapes for Versatile Sealing

For areas requiring more flexible sealing solutions, the SWS system includes pre-compressed foam tapes such as Soudaband Aktiv Plus and Soudaband PRO BG 1. These tapes are impregnated with an adhesive that allows them to expand after application, filling gaps and adapting to uneven surfaces. They provide excellent weather resistance, including UV and rain protection, making them suitable for sealing joints between window or door frames and the building envelope.

Soudaband Aktiv Plus is particularly effective for creating vapour-permeable seals that allow moisture to escape while preventing air and water from entering. This feature is especially important in maintaining the thermal integrity of the building by preventing condensation buildup, which can lead to mould and structural damage. The tape’s ability to maintain elasticity over time ensures long-term durability and performance, even in demanding conditions.

Airtight and Elastic Sealants

The Soudal SWS System also includes a range of high-performance sealants, such as Soudaseal 215LM and Acryrub SWS. These sealants are designed to create flexible, durable seals between different building materials, including plastics, metals, masonry, and wood. They provide primerless adhesion and excellent weather resistance, ensuring the seals remain airtight and watertight, even in harsh climates.

Soudaseal 215LM is a low-modulus hybrid polymer sealant that offers superior flexibility, making it ideal for use in areas prone to movement or expansion, such as window and door joints. Acryrub SWS is an acrylic sealant that provides airtight seals for porous surfaces, such as brick or plaster, and is compatible with a wide range of substrates.

Both sealants are paintable, allowing them to blend seamlessly into the surrounding materials and ensuring a clean, professional finish. Their ability to form airtight and watertight seals makes them essential for maintaining the thermal and acoustic performance of the Soudal SWS System.

Vapour Barrier and Waterproofing Solutions

To ensure complete protection against moisture ingress, the SWS system includes specialised tapes and adhesives designed to seal overlaps, penetrations, and joints in vapour barriers. Products like Soudatape Connect, Soudatape Flex, and Soudatape Façade are used to create permanent airtight seals around windows and doors, ensuring no gaps are left where air or moisture can penetrate. These tapes are also UV resistant and durable, making them suitable for both interior and exterior applications.

For bonding vapour barrier foils and sealing joints, Soudafoil 360H is a flexible adhesive sealant that provides strong adhesion to a variety of substrates, including masonry, plaster, and wood. Soudal Vapourseal is another key product in this category, acting as a plasto-elastic sealant for making airtight connections between vapour barrier foils and building materials. These products work together to maintain the airtightness of the building envelope and prevent moisture from entering, ensuring the long-term performance of the Soudal SWS system.

Comprehensive Airtight Solutions for Energy Efficiency

The Soudal SWS system provides a fully integrated approach to airtight construction, ensuring windows and doors are properly sealed to prevent energy loss, improve thermal performance, and protect the structural integrity of the building. By combining expanding foams, liquid membranes, tapes, and sealants, the SWS system offers a complete solution for modern construction projects, helping builders meet increasingly stringent energy efficiency standards.

Available at Platinum Chemicals, the Soudal SWS system is suitable for use in both new builds and renovations, offering long-term durability and performance across a wide range of applications. Whether you’re working on a residential project, a commercial building, or a passive house, the SWS system ensures your windows and doors are properly sealed for maximum energy efficiency and weather protection.