Mapeflex MS 45 has been specifically developed for sealing expansion, fillet and distribution joints on horizontal and vertical surfaces. It is also recommended to form internal and external flexible bonds between similar and dissimilar materials commonly used in the building industry and to replace or integrate mechanical fasteners.

Quick Links - Click To Jump To Section:

• Features & Benefits
• Recommendations & Limitations
• Application & Preparation

Features & Benefits

• Used as a sealant:
• Sealing expansion, fillet and distribution joints subject to movements of up to 20% of the average width of the joint. It is most frequently used for the following applications:
• Traditional and ventilated façades
• Civil and industrial floors, including those subject to heavy vehicular traffic
• Window and door fittings
• Cracks and splits
• Paintable joints
• Tin roofs and metalwork
• Used as flexible adhesive:
• When applied at a thickness of 3 mm, it forms a flexible bond between most building materials, including many types of plastic.
• Its high bond strength without primer and its rapid polymerisation make Mapeflex MS 45 easy to use when installing building elements or bonding construction features, both internally and externally.
• The product bonds on the following:
• Cement and cement-based materials, bricks
• Steel, copper, aluminium
• Painted surfaces in general
• Glass and mirrors
• Gypsum
• Wood and wood-based materials
• Ceramic and klinker
• Insulating materials in general
• Many types of plastic

Recommendations & Limitations

• Do not apply on dusty or crumbling surfaces
• Do not apply on surfaces with traces of oil, grease and stripping compound otherwise the bond may be compromised
• Do not apply on bituminous surfaces where there may be traces of bleeding oil
• Do not apply Mapeflex MS 45 if the temperature is below 5°C
• Before painting over the sealant make sure it is compatible with the type of paint used
• Use Mapeflex MS Crystal for transparent sealing
• When bonding heavy loads or in critical laying conditions, extra support such as clamps, props etc. may be necessary for the first 24 hours at 23°C
• Do not bond with layers of product more than 3 mm thick

Application & Preparation

Please refer to the data sheets in the tab above for further information.