The Mapeflex MS Crystal sealant from Mapei is ultra-transparent, with high resistance to water and aqueous environments. It is a thixotropic adhesive and sealant based on silane polymers, free of silicone, isocyanates, or solvents. It ensures easy injection and surface finishing, superior resistance to ultraviolet radiation, faster surface curing, and a longer shelf life.

• Used on solid or absorbent substrates with higher mechanical resistance to tension and shear.
• Suitable for both indoor and outdoor use.
• Applied to cracks and gaps with movement up to 20%.
• Suitable for facades, partition glazing, frames, and shower enclosures.
• Applied for bonding glass and other transparent surfaces.
• Adheres to concrete, wood, metals, glass, plaster, ceramics, and many insulation materials.
• Can be applied with a standard silicone gun at temperatures from 5°C to 40°C.

Technical Data:

• Classification according to EN 15651-1: F-EXT-INT
• Classification according to EN 15651-3: XS1
• Form: thixotropic paste
• Color: transparent crystal
• Packaging: 300ml cartridges
• Density: 1.00g/cm³
• Dry solids content: 100%
• Viscosity according to Brookfield at +23°C: 1,500,000 ± 200,000mPa∙s (spindle F - speed 5)
• EMICODE: EC1 Plus - very low emission
• Application temperature: from +5°C to +40°C
• Usage temperature: from -20°C to +80°C
• Skin formation time: 35±5min.
• Final curing: 4.5mm/24 h
• Shore A hardness (ISO 868): 35
• Tensile strength (ISO 37) after 7 days at +23°C: 1.5N/mm²
• Elongation at break (ISO 37) after 7 days at +23°C: 200%
• Resistance to ultraviolet radiation: good
• Elongation during use (continuous use): 20%
• Modulus of elasticity at +23°C (ISO 37): 0.6N/mm²