Silicone Sealants Suppliers, UAE
Silicone Sealants are flexible, weather-resistant sealing compounds used to fill joints and seal gaps in building envelopes, facades, glazing systems, sanitary ware, and general construction joints across the GCC. Their excellent UV resistance, temperature tolerance, and elastic properties make silicone the default sealant for exposed exterior joints in the Gulf's extreme climate. The market offers general purpose, structural, and specialty formulations.
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Silicone sealants are elastomeric compounds based on polydimethylsiloxane (PDMS) polymers that cure to a flexible, rubber-like seal. Types include acetoxy-cure (general purpose — fast cure, vinegar odour, not suitable for metals), neutral-cure (oxime or alkoxy — compatible with most substrates, lower odour), structural silicone (high-strength bonding for structural glazing facades), and specialty formulations including fire-rated, sanitary (with anti-mould agents), and high-temperature silicones. Cured silicone sealants maintain elasticity from minus 50 to plus 200 degrees Celsius and resist UV degradation for 20 years or more.
In the UAE and Saudi Arabia, silicone sealants are specified for curtain wall and window perimeter sealing (weather seal joints), structural silicone glazing (bonding glass to aluminium framing without mechanical retention), facade movement joint sealing, sanitary sealant around bathroom fixtures, and glass-to-glass and glass-to-metal joints. Key specifications include sealant type (neutral-cure for most construction applications, structural for glazing), movement accommodation factor (MAF — typically plus or minus 25 to 50 percent for construction sealants), adhesion to the specific substrates, modulus (low, medium, or high depending on joint design), and compliance with ISO 11600, ASTM C920, or EOTA ETAG 002 (for structural glazing).
Major silicone sealant brands in the GCC include Dow (Dowsil, formerly Dow Corning), Sika (SikaSil), Momentive, Wacker, and Bostik. Procurement managers should specify sealant grade matched to the joint type and substrate, require adhesion testing on project-specific substrates before bulk application, and verify that structural silicone installations are performed by manufacturer-approved applicators with documented quality control including butterfly and peel adhesion testing. Sealant shelf life is typically 12 to 18 months — verify production dates at delivery and store in cool conditions (below 30 degrees Celsius) on site.