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Mapesil AC acetic silicone sealant 310ml cartridge for elastic, waterproof joint sealing on glass, ceramics, aluminium.
Mapesil AC acetic silicone sealant 310ml cartridge for elastic, waterproof joint sealing on glass, ceramics, aluminium.

Mapesil AC Silicone Sealant

Acetic-cure silicone sealant for flexible corner, perimeter and movement joints in suitable ceramic tiling. Grout-matched colours and BioBlock mould-resistant technology.

Vendor: Mapei
SKU: SILMAPE100/BOX
Availability: Out Of Stock
$172.56
$172.56
Prices do not include GST

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Description  

Mapesil AC is a flexible acetic-cure silicone sealant for finishing the joints that cement grout cannot reliably accommodate: corners, perimeters and changes of plane in suitable tiled areas. Its grout-coordinated colour range helps the finished shower, bathroom or kitchen look considered rather than patched together. BioBlock technology helps resist mould formation on the sealant surface.

Where it earns its place

A tiled shower may have perfectly grouted flat joints, yet still needs flexible sealant where walls meet and around suitable sanitary fittings. Mapesil AC provides that movement-capable finish on compatible ceramic, glass and approved non-porous surfaces. It is also used for specified swimming pool and external tile joints where the complete system and curing requirements are met.

Choose the right sealant

Choose Mapesil AC for compatible joints where acetic-cure silicone is appropriate; for acid-sensitive stone, metal or other incompatible materials, select a suitable alternative sealant instead. Match the colour with Ultracolor Plus grout where appropriate, and use UltraCare Smooth Silicone to tool the fresh bead.

Before you start

Sealant does not replace waterproofing or grout across the tile field. Prepare clean dry joint faces, use backing where necessary and allow the required cure before exposure. Not for aquariums or acid-sensitive natural stone.

Common Questions  

Can Mapesil AC be used in swimming pools?
Yes, on compatible substrates and correctly designed joints.

How much movement can it accommodate?
It is rated for ±25% movement and Class 25 LM.

Can it be used on limestone?
No. Its acetic cure is not suitable for acid-sensitive substrates such as limestone.

Can it be used in aquariums?
No. Do not use Mapesil AC to seal aquariums.

Uses & Benefits  
Acetic-cure silicone for expansion joints in ceramic tile and cement wall and floor coverings. Accommodates ±25% movement and is classified Class 25 LM under EN 15651-1, EN 15651-2 and EN 15651-3. Suitable for bathrooms, kitchens, showers, swimming pools and other wet-area joints where compatible substrates are used. Service temperature range is -40°C to +180°C after cure. Elongation at break is approximately 800% to ISO 37.
How To Apply  
Use on clean, dry compatible joint faces. Design and prepare the joint so the sealant can accommodate movement without three-sided adhesion. Extrude continuously and tool promptly because the skin forms in about 10 minutes at 23°C and 50% relative humidity. A tool moistened with soapy water may be used for finishing in accordance with the product guidance. Cure progresses to about 4mm depth in 1 day and 10mm in 7 days under standard conditions. Confirm substrate compatibility before use on sensitive or plasticised materials.
Limitations and Safety Info  
Do not use on acid-sensitive substrates such as limestone. Use a neutral-cure silicone where required. Do not use on highly plasticised materials or bituminous surfaces. Do not use to seal aquariums. Do not use for floor joints subject to heavy traffic. Avoid exterior joints between ceramic tile and light-coloured natural stone where dirt accumulation or substrate sensitivity is a concern. Keep solvents away from uncured sealant because they can inhibit cure.
Suitable Substrates  
  • Ceramic tile and cement wall and floor coverings.
  • Glass tile, glazing and window-frame details.
  • Sanitary ware and sink-to-tile junctions.
  • Compatible building, mechanical, shipbuilding and automotive substrates.

Mapesil AC Silicone Sealant Physical Properties

Mapesil AC Silicone Sealant Physical Properties
Property Value
Density (transparent colour) 1.03 g/cm³
Solid Content 100 %
Application Temperature +5°C to +50°C
Extrusion Rate 120 g/minute
Skin Time 10 minutes
Shrinkage 3.5 %
Cure Rate 4 mm in 1 day, 10 mm in 7 days
Tensile Strength 1.6 N/mm²
Elongation 800 %
Tear Strength 4 N/mm
Shore A Hardness 20
Specific Gravity 1.02 g/cm³
Modulus 0.20 N/mm²
Modulus of Elongation (ISO 8339 METHOD A - 50% elongation) 0.27 N/mm²
Modulus of Elongation (ISO 8339 METHOD A - 100% elongation) 0.35 N/mm²
Movement Capability 25 %
Water Resistance Excellent
UV Resistance Excellent
Resistance to Atmospheric Agents Excellent
Chemical Resistance Good
Resistance to Soap and Detergents Excellent
Resistance to Solvents Limited
Temperature Resistance –40°C to +180°C
Density 1.03 (transparent colour)

Mapesil AC Silicone Sealant - Use Cases

Here are some common examples on where Mapesil AC Silicone Sealant used by our customers.

Glazing

Window and Frame Glazing

Sealing glass, door, or window frames and portholes, needing elasticity and durability against weather extremes.

This acetic silicone ensures excellent adhesion to glass and anodised aluminium, maintaining elasticity despite atmospheric and wide temperature changes.

  • EN 15651-2 G-CC 25 LM
  • Adheres to glass, anodised aluminium
  • -40°C to +180°C resistant
  • 25% movement allowed

Civil Construction

Elastic gasket formation

Forming flexible gaskets between different building elements or materials subject to varied thermal expansion.

This product creates highly elastic gaskets that withstand chemical agents and extreme temperatures, ensuring long-term performance under stress.

  • Resistant chemical agents
  • -40°C to +180°C
  • 800% elongation
  • 100% dry solids

Tiling

Sanitary Area Joint Sealing

When sealing joints between sanitary ware and ceramic tiles in kitchens, bathrooms, and showers.

The sanitary silicone is designed to resist mould growth in wet areas, while maintaining a flexible waterproof seal. It does not eliminate the need for cleaning and ventilation.

  • EN 15651-3 S XS1
  • Mildew resistant
  • Excellent water resistance
  • 40 colours plus transparent

Waterproofing

Swimming Pool Joint Sealing

Sealing expansion joints in swimming pools requiring proven resistance to chemical agents and continuous water immersion.

It offers high elasticity and proven resistance to chemical agents and water immersion, ensuring a long-lasting, flexible seal in pool environments.

  • Resistant to chemical agents
  • Durable in water immersion
  • 25% movement allowed
  • Excellent ageing resistance

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