Providing sealing excellence for over 50 years , Silirub has become a well-structured range of silicone sealants for use of professional installers across the globe . These professional grade formulations are developed to suit the requirements of a wide range of sealing applications for the construction , glazing , sanitary and industrial markets .

Soudal invests heavily in the future with state-of-the-art manufacturing facilities , with ultra-high-speed filling lines , fully automatic mixing installations , transport systems and strict quality control protocol . These processes and infrastructure set the standard for the sector and ensure consistent high levels of quality . In turn , Soudal products significantly contribute towards the performance and longevity of installations .

The Silirub range is comprised of the two main categories of silicone , neutral curing and acetoxy curing . The diverse range of Silirub formulations mean installers can choose the best product for their

precise application , based on the characteristics and properties of each silicone sealant :

Silirub MA is developed specifically for sealing on natural stone , eliminating the risk of staining and edge of seal contamination . The professional quality LMN silicone is impervious to mould growth , making it ideal for the sealing of joints in sanitary environments and areas of high humidity , as well as expansion joints and glazing applications .

Silirub Color is a tailored colour matching service by Soudal , offering a professional quality LMN silicone in any RAL Classic colour . The bespoke service means silicone can be matched to the exact colour of installation materials .

Silirub 2 is a superior LMN silicone for perimeter sealing of window and door frames , independently tested to ISO 11600 F & G 25 LM . The premium quality formulation is 100 % silicone , with no shrinkage . Suitable for a diverse range of applications , including the sealing of roofline and drainage systems , weather sealing of aluminium glazing systems , curtain walling , façade panels , and more .

LMN silicone is the preferred choice for applications that require flexibility and ability to accommodate movement within the joint . For instance , sealing of window and door frames where a sealant must be capable of accommodating any settling movement of the structure , or thermal expansion or contraction throughout its life span .

What does LMN Stand for ?

When it comes to silicone sealants , the term LMN is a common turn of phrase . It is an abbreviation and stands for ‘ Low Modulus Neutral ’. LMN is a category of silicone and does not define the quality level of a sealant . There are many differing qualities of LMN on the market and choosing the right one will ensure optimum performance and longevity of an installation .

What does Low Modulus mean ?

The phrase ‘ Low Modulus ’ refers to the level of flexibility and elasticity of a silicone . A low modulus silicone offers lower resistance to being stretched , meaning greater flexibility and ability to accommodate movement . Whereas high modulus silicone is much more rigid , with higher resistance to being stretched .

What is a Neutral silicone ?

The ‘ Neutral ’ aspect refers to the curing process of the sealant . Unlike an acetoxy silicone , a neutral cure silicone does not release any acidic substance while curing . A key identifier of a silicone ’ s curing process is the smell emitted ; a neutral cure silicone is virtually odour-less , in comparison to acetoxy silicone that presents a strong vinegar-like odour . One of the main advantages of neutral silicone is that it is non-corrosive , making it an ideal choice for use on sensitive surfaces and some metal substrates .

Aside from offering an extensive range of high-quality products , Soudal offers ongoing commitment to providing outstanding service . Our Technical Support phoneline is open Mon-Fri ( 08:30 – 17:00 ) to assist users making the best product choice for upcoming projects and applications : 01827 261 092 .

For more information on the complete Silirub range , visit : www . soudal . co . uk