illbruckmaking it perfect. Description GS123 is a rapid curing, sanitary grade, acetoxy silicone sealant with excellent resistance to mould and mildew. Excellent for sealing areas with high levels of moisture. Colour White and translucent Packaging 310 ml cartridge (20 per carton) Environmental Considerations The use of GS123 in the correct application will give an airtight seal in conformity with the requirements laid down in Approved Document L of the Building Regulations for England and Wales. Technical Information Characteristic Standard Extrusion Rate Shore A Hardness ISO 868 Skin Forming Time Tensile Strength Modulus at 100% Elongation Elongation at Break Movement Accommodation Application Temperature Service Temperature Storage Shelf Life Classification acetoxy cure silicone sealant with fungicide ~1.03 g/cm3 ~460 ml/min 19 12 -20 minutes Dependent on temperature and humidity 0.8 MPa ~0.4 MPa ~240% 25% +5°C to +40°C -40°C up to +100°C Store in shaded dry conditions between +5°C and +25°C. 20 months when stored as recommended in original unopened containers. GS123 Sanitary Silicone Usage / Purpose GS123 is a sanitary grade, acetoxy silicone sealant with excellent resistance to mould and mildew. Can be used in bathrooms, kitchens and similar applications. Gives good working time. Necessary Tools • Cartridge gun and sharp knife. Protective Equipment Use in well ventilated conditions and ensure all recommended protective equipment is worn during handling & use of this product. For full recommendation, refer to safety data sheet. Priming • GS123 has excellent primerless adhesion to many typical substrates around kitchens and bathrooms. In certain cases with difficult substrates, a primer may be required., please contact Tremco CPG Technical Services Department to discuss your requirements. Key Benefits • Excellent for sealing areas with high levels of moisture • Can be sealed around all shower and bath types • Meets the requirements of EN ISO 11600 S 25HM • Superior mould resistance • Excellent tooling properties

GS123 Sanitary Silicone Joint Design Considerations • Joint design to be in accordance with BS 6093. • For the purposes of joint width calculation in BS 6093, the MAF of GS123 is 25%. • Minimum joint width should normally not be less than 5 mm (where there is joint movement). • Width to depth ratio should typically be 2:1. • Minimum width to depth ratio should typically be 1:1. Please note MAF is reduced at smaller width to depth ratios. • The minimum contact area with any substrate (including for fillet joints) should be determined by the quality of the bond. If in doubt, please contact Tremco...