Description
Mapei Mapesil AC Silicone Sealant
Available as Individual Cartridges and Boxes of 12
310ml Cartridges
Mapei Mapesil AC Silicone Sealant is a pure acetic silicone sealant, is highly elastic and resistant to mould.
Available in all the colours in the Mapei grouts collection.
Pure, mould-resistant, acetic silicone sealant with BioBlock® technology for movements up to 25%.
ADVANTAGES:
• High elasticity
• Mould-resistant (BioBlock® technology)
• Solvent-free
• Strong and durable
• Maximum guarantee
• Perfect adhesion
• Smooth and elastic
• High thermal and chemical resistance
• Excellent durability
• Wide range of colours
TECHNICAL DATA:
• Movement in service: 25%.
• Modulus of elasticity at 100% elongation: 0.35 N/mm².
• Shore A hardness: 20.
• Workability time: 10 minutes.
• Colours: 34 colours + transparent.
• EMICODE: EC1 Plus – very low emission.
• Application: extrusion gun.
• Consumption: 3.1 linear metres per 310 ml cartridge (10×10 mm section).
• Packaging: 310 ml cartridges.
WHERE TO USE:
Mapei Mapesil AC Silicone Sealant is an acetic-crosslinking silicone sealant suitable for sealing glass, ceramic, and anodised aluminium.
After first having used a bonding enhancer, Primer FD can also be used on concrete, wood, metal, painted surfaces, plastic and rubber.
Mapesil AC is used for:
· Sealing expansion joints of ± 25% expansion of the initial size, according to the stanrdard EN 15651.
· Forming a perfectly elastic gasket between different elements in the building, mechanical engineering, shipbuilding,
automobile, manufacturing, etc.
APPLICATION EXAMPLES
· Sealing joints in wall and floor coverings of ceramic and cement, provided they are not subject to heavy abrasion.
· Sealing joints between sinks or sanitary ware and ceramic tiles in kitchens, bathrooms and showers with colours
coordinated with the grouts.
· Sealing expansion joints in swimming pools.
· Assembling compositions of glass tiles and artistic stained glass windows.
· Sealing glazing, door, and window frames portholes, windows, and glass.
· Sealing air ducts, and water pipes.
· Sealing tanks, service pipes, and boilers.
· Sealing of joints subject to high chemical and thermal stress.
· Sealing materials of different thermal exposure coefficients.
TECHNICAL CHARACTERISTICS
Mapei Mapesil AC Silicone Sealant is a one-component, acetic crosslinking, solvent-free silicone sealant, available coloured or transparent. It is a thixotropic paste which is easily trowellable both horizontally and vertically. It crosslinks following exposure to atmospheric humidity at ambient temperatures, and forms an elastic product with following properties:
• excellent durability.
• Seals remain unchanged even after many years exposure to climatic extremes, industrial pollution,
sudden temperature changes and immersion in water;
• high elasticity;
• excellent bonding to glass, ceramic and anodised aluminium;
• mildew resistant;
• waterproof and permeable to vapour;
• resistant to chemical agents;
• flexible down to -40°C and resistant to temperatures at +180°C;
• easily workable;
• in compliance with ISO 11600 norm, it is classified as F-25-LM.
• in compliance with EN 15651-1, EN 15651-2, EN 15651-3 and CE-marking
• in compliance with numerous international standards.
RECOMMENDATIONS
· Do not use Mapei Mapesil AC Silicone Sealant for joints in exterior between ceramic tiles and light-coloured natural stone because dirt could accumulate by the joints. In such cases, please contact Mapei Technical Service to identify the most suitable solution.
· For sealing surfaces sensitive to acids such as limestone, use a neutral silicone sealant (e.g. Mapesil LM).
· The use of Mapei Mapesil AC Silicone Sealant is not recommended on highly plasticised material or on bituminous surfaces because of the release of substances that reduce bonding and penetrate into the sealant, altering the colour and resistance.
· The resistance of Mapei Mapesil AC Silicone Sealant to chemical agents is generally excellent; however, due to the numerous products and working conditions to which Mapei Mapesil AC Silicone Sealant can be applied, it is always advisable to do a sample test in cases of doubt.
· Do not use Mapei Mapesil AC Silicone Sealant to seal aquariums.
· For sealing floor joints subject to heavy traffic, use a polyurethane (e.g. Mapeflex PU 45 FT) or epoxy-polyurethane (e.g.
Mapeflex E-PU 21 SL) sealant.
APPLICATION PROCEDURE
Preparing and calculating joints size
All the surfaces to receive the sealant must be dry, solid, and free from dust and loose particles, oils, grease, wax, old paint, and rust.
In order that the seal can carry out its function, provision must be made for it to elongate and compress freely.
During application, it is, therefore, necessary that:
· it adheres only to the side of the walls of the joint and not to the base of the joint;
· the joint is sized so that the estimated maximum extension is not greater than 25% of the initial width (calculated at
+20°C);
· when the width of the joint is 10 mm, the thickness must be equal to the width; for widths between 11 and 20 mm the
thickness must always be equal to 10 mm; for widths greater than the thickness must be equal to half the width.
To control the depth of the joint and to prevent Mapesil AC from adhering to the base, the bottom of the joint should be
filled with a sized Mapefoam, a polyethylene cord.
Application of Primer FD
Where the use of Primer FD is necessary, it must be applied with a small brush onto the appropriate areas of the joints
and left to dry for several minutes to allow the solvent to evaporate. Then apply Mapei Mapesil AC Silicone Sealant.
Application of Mapesil AC
Mapei Mapesil AC Silicone Sealant is packed in cartridges of 310 ml; to use, cut the cartridge above the end of the thread and screw on the nozzle, which should be cut at 45° to produce a hole corresponding to the size of the joint. Insert the cartridge into the gun and extrude the sealant.
The surface of Mapei Mapesil AC Silicone Sealant must be finished off with a tool moistened with soapy water before a superficial film has formed.
Crosslinking
When exposed to air and humidity, Mapesil AC crosslinks and becomes elastic. The speed at which Mapesil AC crosslinks
depends only slightly on temperature, but is fundamentally linked to humidity in the atmosphere.
CLEANING
Traces of unpolymerised Mapei Mapesil AC Silicone Sealant may be removed with common solvents (ethyl acetate, petrol, toluene); after complete cross-linking, the silicone rubber may only be removed mechanically. Avoid contact between Mapei Mapesil AC Silicone Sealant not yet polymerised and any type of solvent, to avoid delays or inhibition of the final hardening process
CONSUMPTION
Mapei Mapesil AC Silicone Sealant:
Consumption of Mapesil AC varies depending on the width of the joints. Some examples of consumption for end joints
and triangular joints are shown in the chart.
Primer FD:
100 g/m²
STORAGE
Mapei Mapesil AC Silicone Sealant can be stored 24 months in a dry cool place in original cartridges.
Primer FD, when stored in a cool and dry place (at a temperature not higher than +25°C) has a storage life of 6 months.
SAFETY INSTRUCTIONS
Mapei Mapesil AC Silicone Sealant is not considered dangerous according to current norms regarding the classifcation of mixtures. During use, wear protective gloves and goggles and take the usual precautions for handling chemicals.
For further and complete information about the safe use of our product please refer to the latest version of our Material Safety Data Sheet.
PRODUCT FOR PROFESSIONAL USE.
Primer FD is easily inflammable. It is recommended storing it away from naked flames and sparks, to avoid smoking, to
prevent the build up of electrostatic energy and to work in well ventilated areas.
Furthermore, it is irritant for the eyes and skin, it may cause drowsiness and dizziness, it is harmful if swallowed or inhaled, and it may cause irreversible damage if used for lengthy periods.
During use, wear protective gloves to prevent dry, chapped skin, and take the usual precautions for handling chemicals.
If the product comes in contact with the eyes or skin, wash immediately with plenty of clean water and seek medical
attention. Wear a suitable device to protect the respiratory system. Do not use in presence of pregnant women.
For further and complete information about the safe use of our product please refer to the latest version of our Material Safety Data Sheet.
PRODUCT FOR PROFESSIONAL USE.
