Sikasil SG-20, 1-Component Silicone for Structural Glazing, Exterior, Black
SIKA
Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.
Read more| High-strength, 1-component silicone structural glazing adhesive, CE-marked Sikasil SG-20 is a 1-component, neutral-curing structural glazing silicone adhesive, which combines mechanical strength with high elongation. It adheres excellent to a wide range of substrates.
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PRODUCT BENEFITS
UsageSikasil SG-20 is ideal for structural glazing and other bonding applications where high mechanical performance with silicone is required. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.Packaging
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Typical Product Data
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Technical Information CURE MECHANISM Sikasil SG-20 cures by reaction with atmospheric moisture. At low temperatures the water content of the air is generally lower and the curing reaction proceeds somewhat slower (see diagram 1). Diagram 1: Curing speed Sikasil SG-20 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Application Information Surface Preparation Surfaces must be clean, dry and free from grease, oil and dust. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. Application The optimum temperature for substrate and sealant is between 15 °C and 25 °C. Basis for calculation of the necessary joint dimensions are the technical values of the adhesive and the adjacent building materials, the exposure of the building elements, their construction and size as well as external loads. Joints deeper than 15 mm must be avoided. Tooling and finishing Tooling and finishing must be carried out within the skin time of the sealant or adhesive. When tooling freshly applied Sikasil SG-20 press the adhesive to the joint flanks to get a good wetting of the bonding surface. No tooling agents to be used. Removal Uncured Sikasil SG-20 may be removed from tools and equipment with Sika Remover-208 or another suitable solvent. Once cured, the material can only be removed mechanically. Overpainting Sikasil SG-20 cannot be overpainted. Application Limits Recommended solutions from Sika for structural glazing and window bonding are usually compatible to each other. These solutions consist of products such as Sikasil SG, IG, WS and WT series. |
