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Soudal Silirub LMN is a high-quality low modulus neutral cure silicone sealant that provides excellent adhesion and long-lasting performance. With its virtually odourless formula and fast skinning and curing time, this solvent-free silicone is ideal for a variety of applications. It offers impressive benefits such as low dirt pick-up, no shrinkage during curing, and easy break off and tooling.
Silirub LMN also boasts primerless adhesion on various construction materials, including glass, plastics, masonry substrates, metals, and wood. It exhibits high movement capability and is resistant to UV, rain, snow, ozone, and many chemicals. Tested to ISO 11600 F&G 25 LM standards, this sealant is available in a wide range of colours.
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✔️ High-quality, low modulus neutral cure silicone sealant with excellent adhesion.
✔️ Virtually odourless formula with fast skinning and curing time.
✔️ Primerless adhesion on glass, plastics, masonry, metals, and wood.
✔️ Resistant to UV, rain, snow, ozone, and many chemicals.
✔️ No shrinkage during curing with low dirt pick-up and easy tooling.
Soudal Silirub LMN is a high-quality silicone sealant crafted to meet the rigorous demands of construction and sealing projects. Its versatility makes it an ideal choice for a wide range of applications, ensuring exceptional results in both residential and commercial projects.
Silirub LMN is a low modulus, neutral cure silicone sealant that delivers reliable performance and excellent adhesion. It is virtually odourless, ensuring a comfortable application experience, while its fast skinning and final cure times help expedite projects for greater efficiency on the jobsite.
This silicone sealant features a solvent-free formulation that prevents shrinkage during curing, which means the seal remains secure even when subjected to stress or strain. Its durable, thick-bodied consistency allows for easy break off and tooling, ensuring precise application and a flawless finish every time.
Silirub LMN provides excellent primerless adhesion on a wide range of construction materials, including glass, plastics, masonry, metals, and wood. This feature makes the sealing process simpler and more convenient, saving time while providing a dependable bond on diverse surfaces—perfect for both indoor and outdoor projects.
Soudal Silirub LMN is designed to withstand the most challenging conditions. Its excellent movement capability allows for flexibility, accommodating expansion and contraction in sealed joints. Additionally, it offers impressive resistance to UV rays, ozone, rain, snow, and various chemicals, maintaining its performance and integrity in both harsh and changing environments.
Independently tested and certified to meet ISO 11600 F&G 25 LM standards, Soudal Silirub LMN upholds the highest standards of quality and reliability. This ensures that the product meets industry requirements and provides consistent, dependable sealing for professional projects.
Silirub LMN is available in a wide selection of colour options, providing the flexibility to match existing surfaces or create unique visual effects. Whether you need to blend seamlessly with your project’s design or add a touch of customisation, this sealant makes integration easy and versatile.
Read our Blog about How to Seal Window Frames with Silirub LMN
Very Easy Application: Silirub LMN is formulated for ease of use, ensuring a smooth and efficient application process. Its thick-bodied consistency facilitates simple break off and tooling, enabling precise and neat seals.
Low Odour: With its virtually odourless formula, Silirub LMN provides a pleasant working environment, reducing any potential discomfort associated with strong odours during application.
Colourfast and UV Resistant: This sealant is designed to resist fading and discoloration even when exposed to UV rays. It maintains its vibrant color over time, ensuring long-lasting aesthetic appeal.
Permanent Elasticity: Silirub LMN retains its elasticity even after curing, accommodating any movements or vibrations without compromising the integrity of the seal.
Excellent Adhesion: This sealant exhibits strong adhesion on a variety of materials, including glass, plastics, masonry substrates, metals, and wood. It forms a reliable and durable bond, ensuring long-lasting performance.
Low Modulus: Silirub LMN offers low modulus characteristics, allowing for flexibility and accommodating any potential joint movement. It ensures a secure and stable seal, even in dynamic environments.
Neutral Cure: As a neutral cure silicone sealant, Silirub LMN is compatible with a wide range of substrates and provides excellent bonding without the risk of corrosion or damage to sensitive materials.
Corrosion Free: Silirub LMN is specially formulated to be corrosion-free, ensuring the integrity of the sealed joint and protecting the surrounding materials from any potential damage.
Wide Colour Range: Soudal offers a diverse selection of color options for Silirub LMN, allowing for easy integration with various aesthetic requirements and design preferences.
Glazing, Construction, and Industrial Sealing: Silirub LMN is a reliable choice for sealing windows, doors, and other construction elements. Its strong bond ensures long-lasting protection against water, air, and temperature fluctuations.
Perimeter Sealing: Ideal for sealing wood, PVCu, and aluminum window frames, Silirub LMN provides effective weatherproofing and prevents unwanted drafts and leaks.
Weathersealing of Aluminum Glazing Systems: Silirub LMN is suitable for sealing aluminum glazing systems, curtain walling, and facade panels. It ensures maximum protection against weather elements, maintaining the integrity of the structure.
Sealing of Roofline and Drainage Systems: Silirub LMN effectively seals roofline and drainage systems, providing excellent resistance to water and weather damage.
Double Glazed Sealed Units: This silicone sealant is suitable for wet glazing applications, allowing for the bedding of double glazed sealed units. It provides strong adhesion and prevents moisture intrusion.
Expansion and Movement Joints: Silirub LMN is ideal for sealing expansion and movement joints in construction. Its flexibility accommodates structural movements while maintaining a watertight seal.
Roofing Seals: From lead to roofing slates and fibre-cement, Silirub LMN offers reliable sealing properties for various roofing applications.
Industrial Sealing Applications: Whether it's coated metals, anodised aluminum, or stainless steel, this silicone sealant provides excellent adhesion in industrial settings.
HVAC Ducting, Pipework, and Drainage Joints: Silirub LMN is suitable for sealing joints in HVAC systems, pipework, and drainage systems. Its flexibility ensures a secure and tight seal.
General Maintenance: Beyond construction applications, Silirub LMN is perfect for sealing cars, caravans, mobile homes, and boats. It offers dependable protection against water ingress and weather elements.
Soudal Silirub LMN is not suitable for contact with secondary sealant of insulating glass units.
Soudal Silirub LMN is not suitable for applications in direct contact with PVB films of laminated glass, for this we recommend to use Silirub 2.
Soudal Silirub LMN adheres superbly to most common building substrates, including PVC, glass, ceramic, porcelain, metals, stainless steel, and wood.
Please note that Silirub LMN does not provide adhesion on PE, PP, PTFE (Teflon®), and bituminous substrates. We strongly recommend conducting a preliminary compatibility test before applying the sealant to ensure the best results.
To achieve a secure and long-lasting bond, it is crucial to prepare the surfaces properly.
Before applying Soudal Silirub LMN, make sure the surfaces are clean, dry, and free of dust and grease. For porous surfaces in water-loaded applications, it is essential to prime the surface with Soudal Primer 150.
However, non-porous substrates do not require a primer. Proper surface preparation ensures optimal adhesion and a reliable seal.
Using a caulking gun allows for fast and efficient application of Soudal Silirub LMN. Follow these step-by-step instructions for the best results:
Cut the nozzle of the cartridge at a 45-degree angle to the desired size. This angle helps control the bead size during application.
Load the cartridge into the caulking gun, ensuring it is securely in place.
Apply consistent pressure on the trigger of the caulking gun to dispense the sealant. Direct the nozzle tip into the joint, filling the gap completely with the silicone sealant.
For optimal results, it is recommended to spray the surface with a soapy solution just before the sealant begins to skin. This step enables easy smoothing of the sealant and ensures a smooth and professional finish.
Once the sealant is applied, it can be smoothly finished using the Soudaglatt Smoothing Tool or a similar tool of your choice. Simply run the tool smoothly along the sealant line to create an even finish.If a smoothing tool is not available, a wetted finger can be used to achieve a similar effect. Perform the finishing process before the sealant begins to skin, ensuring a neat and tidy appearance.
Coverage of any sealant product varies depending on Joint Width and Joint Depth.
Please refer to our Guide on How To Measure The Number of Tubes Required For the Job.
Minimum Width for Joints: 5mm
Maximum Width for Joints: 30mm
Minimum Depth for Joints: 5mm
Recommendation Sealing Jobs: Joint Width = 2 x Joint Depth.
Uncured product can be easily cleaned using Soudal Swipex Cleaning Wipes. For cured sealant, it should be removed mechanically with the aid of Soudal Sealant Remover or Soudal Silicone Remover Gel.
Follow the instructions provided with Soudal Sealant Remover Spray for effective removal.
Do not use on natural stones like marble, granite etc... as it may cause staining.
Direct contact with the secondary sealing of insulating glass units (insulation) and the PVB-film of safety glass must be avoided.
A total absence of UV can cause a colour change of the sealant.
In an acid environment or in a dark room, white silicone can slightly turn yellow. However, under the influence of sunlight it will turn back to its initial colour.
We strongly recommend not to apply the product in full sunlight as it will dry very fast.
When finished with a finishing solution or soapy solution, make sure that the surfaces are not touched by this solution. This will cause the sealant not to adhere to that surface. Therefore we recommend to only dip the finishing tool in this solution.
Do not use in applications where continuous water immersion is possible.
A) Soudal Silirub LMN is a low modulus neutral cure silicone sealant designed for professional use in construction and sealing projects. It offers superior adhesion, is virtually odourless, and provides long-lasting durability and flexibility on a wide range of substrates.
A) Key benefits include very easy application, low odour, colorfastness, UV resistance, permanent elasticity, excellent adhesion, low modulus for flexibility, neutral cure to prevent corrosion, and a wide color range.
A) Yes, Silirub LMN adheres superbly to glass, making it suitable for glazing, perimeter sealing around window frames, and other glass-related applications. However, it is not recommended for direct contact with the secondary sealant of insulating glass units or PVB films of laminated glass.
A) Yes, its UV, rain, snow, ozone, and chemical resistance make Silirub LMN suitable for outdoor applications, ensuring long-term performance in harsh environmental conditions.
A) Silirub LMN exhibits primerless adhesion to common construction materials such as PVC, ceramics, metals, stainless steel, and wood, simplifying the sealing process across diverse surfaces.
A) Surfaces should be clean, dry, and free of dust and grease. Porous surfaces in water-loaded applications should be primed with Soudal Primer 150, while non-porous substrates generally do not require a primer.
A) Silirub LMN can be applied using a caulking gun. Cut the nozzle at a 45-degree angle, load the cartridge, and apply consistent pressure to dispense. It's advisable to smooth the sealant with a soapy solution before skinning for a professional finish.
A) Use the Soudaglatt Smoothing Tool or a wetted finger to smooth the sealant before it begins to skin. This ensures a neat appearance and uniform finish.
A) The minimum joint width is 5mm, and the maximum is 30mm, with a minimum depth of 5mm. For sealing jobs, it's recommended that the joint width equals twice the joint depth.
A) Uncured Silirub LMN can be cleaned with Soudal Swipex Cleaning Wipes. Cured sealant should be removed mechanically, with the aid of Soudal Sealant Remover or Silicone Remover Gel for effective removal.
A) Silirub LMN is not suitable for applications where continuous water immersion is expected. It's designed for areas that need durable sealing against moisture but not constant submersion.
A) Yes, its excellent movement capability and flexibility make it ideal for sealing expansion and movement joints in construction, accommodating structural movements without compromising the watertight seal.
A) Silirub LMN can be over-painted with water-based masonry paint within 3-10 days of application. For solvent-based paint applications, it's advisable to wait longer and perform a compatibility test.
A) Its formulation is resistant to UV rays, rain, snow, ozone, and many chemicals, ensuring that the seal maintains its integrity and performance over time, even in harsh outdoor environments.
A) Silirub LMN can withstand temperatures ranging from -60 °C to 150 °C, making it suitable for a wide range of environmental conditions.
A) The optimal application temperature range for Silirub LMN is between 5 °C and 35 °C, ensuring the best conditions for adhesion and curing.
A) Skin formation occurs approximately 8 minutes after application at 23°C and 50% relative humidity, with a curing speed of about 2mm per 24 hours under the same conditions.
A) Yes, but porous surfaces, especially in water-loaded applications, should be primed with Soudal Primer 150 to ensure optimal adhesion and a reliable seal. This preparatory step is crucial for enhancing the bond between the sealant and porous substrates, such as certain types of masonry and untreated wood.
A) Although Silirub LMN is a neutral cure silicone and generally safe for a wide range of materials, direct contact with sensitive materials like natural stones (which may stain) or the secondary sealant in insulating glass units should be avoided. If accidental contact occurs, clean the area immediately with an appropriate cleaner to prevent damage.
A) Yes, Silirub LMN's excellent adhesion to coated metals, anodised aluminum, and stainless steel, along with its resistance to various chemicals, makes it suitable for a wide range of industrial sealing applications.
A) Silirub LMN is formulated to be solvent-free, reducing VOC emissions and making it a more environmentally friendly option for sealing projects. Its production adheres to ISO 9001 and ISO 14001 standards, emphasising quality and environmental management.
A) The low modulus nature of Silirub LMN allows it to stretch and compress with joint movement without losing adhesion or integrity. This makes it particularly effective in accommodating the natural expansion and contraction of building materials, preventing cracks and gaps in the sealant layer.
A) Silirub LMN is not suitable for use on polycarbonate surfaces. For sealing applications involving polycarbonate, Soudal recommends using specific products like Aquafix All Weather Sealant that are compatible with these materials.
A) Silirub LMN's colorfast and UV-resistant properties ensure that it maintains its color and does not degrade under exposure to sunlight. This makes it ideal for outdoor applications where aesthetic appearance is important over the long term.
A) Although Silirub LMN generally does not require a primer for non-porous substrates, ensuring the surface is clean, dry, and free from dust or grease is vital for optimal adhesion. For best results, always perform a preliminary adhesion test on a small area.
A) When applying Silirub LMN, avoid contact with skin and eyes, and ensure adequate ventilation in the working area. If the product comes into contact with skin, wash it off with soap and water. For eye contact, rinse thoroughly with water and seek medical advice if irritation persists.
A) By providing an effective seal against air and moisture infiltration, Silirub LMN helps maintain indoor temperature control, reducing the need for heating and cooling. This contributes to the overall energy efficiency of buildings.
A) While Silirub LMN can be over-painted with water-based paints within a certain timeframe, compatibility with other types of paint should be tested on a small area first. Solvent-based paints may require a longer waiting period before application over the sealant.
A) Unused Silirub LMN should be stored in its original, unopened packaging in a cool, dry place. Ensure the cap is tightly sealed to prevent the product from curing in the cartridge. Proper storage will help maintain the product's shelf life and performance for future use.
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