This Sikaflex 708 Construction sealant is designed for expansion joints and sealing of concrete and masonry facades. It is suitable for concrete and masonry facade elements, heavy or light prefabricated elements, pre-wall joints, as well as SIFE facades (Facade Insulation Systems with Coating). It can be used both indoors and outdoors, offering easy application and smoothing. The sealant has good weather resistance, aging resistance, and good mechanical strength.
For joints with movement, the width must be at least 8 mm and must not exceed 40 mm. For joints without movement, such as internal connection joints, the joint width can be less than 8 mm.
Specialising in chemical products, Sika is a leader in the development and manufacturing of systems and products for bonding, sealing, sound insulation, reinforcement, and protection in the construction and automotive industries. Product innovation and excellence in quality and service have been the company's priorities for over 100 years now!
- Movement capability: 25% (ISO 9047)
- Easy application and smoothing
- Weather and aging resistance
- Mechanical strength
- Adhesion to most construction materials
- Isocyanate monomer content < 0.1% (no safety training required for the user (REACH 2023 annex XVII entry 74 restriction))
- Density: approximately 1.45
- Shore A hardness: > 20 (after 28 days at 23 °C and 50% humidity)
- Tensile strength: approximately 0.96 MPa (after 28 days at 23 °C and 50% humidity)
- Elastic recovery: approximately 90%
- Service temperature: from −40 °C to +70 °C
- Polymerisation speed: approximately 3 mm in 24 hours at +23°C and 50% RH
- 300 ml cartridge
- Colour: Concrete grey
- Ref. 814837
Sealant for construction joints SIKA Sikaflex 708 Construction - Concrete grey - 300ml
Delivered in its original packaging
Read the instructions carefully before use