Sikaflex®-740 Construction Joint Sealant for Joints Requiring Plastering and Painting
Suitable for sealing general construction joints and movement joints, such as building wall joints, wall-to-floor joints, door and window frames, frame perimeters, and precast wall panels
Provides excellent waterproofing properties and resistance to rain, sunlight, and weather conditions
Easy to apply and non-sagging, suitable for both vertical and horizontal applications
Highly flexible, accommodating joint movements of up to 35%
Excellent adhesion to various materials, including concrete, wood, metal, aluminum, PVC, and others
Long service life with low maintenance requirements
Solvent-free formulation, resulting in low odor and bubble-free curing
Product Description
Sikaflex®-740 Construction
is a one-component, flexible joint sealant designed for movement joints and general concrete construction joints requiring thin plaster finishes. It can be painted over 3–5 days after sealing without causing staining.
Applications
Joint sealing applications for:
Joints requiring subsequent plastering and painting
Movement joints and general concrete construction joints
Both interior and exterior applications
Residential buildings and high-rise construction
Precast concrete panels and building components
Window and door frames
Features / Benefits
Does not cause staining on plastered surfaces or painted finishes
Excellent weather resistance
Movement capability of ±35% (ASTM C719)
Good adhesion to porous substrates
Excellent adhesion to most metals
Bubble-free curing
Excellent workability
Low volatile organic compound (VOC) emissions
Environmental Information
LEED v4 EQ Credit: Low-Emitting Materials
VOC Test Report, SCAQMD Rule 1168, LEED v4.1, Sikaflex-740 Construction, Eurofins, Report No. 392-2021-00292706_XG_EN
VOC Emission Test CDPH, Sikaflex®-740 Construction, Eurofins, Report No. 392-2021-00292703_H_EN
Standards Compliance
– Joint Classification, ASTM C920, Class 35, Sikaflex®-740 Construction
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