Mapei Mapesil AC is a premium-quality, solvent-free, pure acetic silicone sealant designed for long-lasting, flexible and waterproof sealing in demanding wet environments. Featuring advanced BioBlock® anti-mould technology, it provides exceptional resistance to mould, mildew, moisture, chemicals and temperature fluctuations, making it ideal for bathrooms, showers, kitchens, swimming pools and tiled areas.

With outstanding elasticity and a movement capability of up to 25%, Mapesil AC absorbs structural movement without cracking, ensuring durable and reliable seals around sanitary ware, ceramic tiles, glass, sinks, baths, shower trays and expansion joints. Its smooth finish, excellent adhesion and colour-matched compatibility with Mapei grout ranges make it the preferred choice for professional tilers and installers.

Key Features & Benefits

• Advanced BioBlock® anti-mould technology
• 100% solvent-free silicone formula
• Waterproof and highly flexible
• Accommodates movement up to 25%
• Excellent adhesion to ceramic, glass and sanitary fixtures
• Resistant to moisture, cleaning chemicals and temperature extremes
• Suitable for interior and exterior applications
• Long-lasting colour stability and durability
• Smooth, professional finish
• Available in a wide range of colours to match Mapei grout lines

Recommended Applications

• Bathroom and shower sealing
• Kitchen worktops, sinks and splashbacks
• Baths, shower trays and wash basins
• Ceramic and porcelain tile joints
• Swimming pools and wet rooms
• Expansion and movement joints
• Glass and sanitary installations
• Internal and external sealing projects