SikaHyflex-250 Facade, Joint Sealant for Concrete, Masonry & EIFS, Interior & Exterior
SIKA
Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.
Read more| High-performance joint sealant for concrete, masonry and EIFS facades SikaHyflex-250 Facade is a 1-part polyurethane joint sealant. It is used for durably sealing movement and connection joints in concrete, masonry and EIFS facades.
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UsageThe Product is used for sealing and weatherproofing joints in the building envelope where reliability and durability is required. The Product is used for the following application areas:
Advantages
Packaging
Refer to the current price list for available packaging variations. ColourAvailable in a range of colours, refer to the price list for further information. | ||||||||||||||||||||||
Technical Information Shore A Hardness Cured 28 days at +23 °C and 50 % R.H. 20 Secant Tensile Modulus Cured 28 days at +23 °C and 50% R.H. Measured at 100% elongation at +23 °C 0.30 N/mm2 Cured 28 days at +23 °C and 50% R.H. Measured at 100% elongation at -20 °C 0.60 N/mm2 Elastic Recovery Cured 28 days at +23 °C and 50 % R.H. Measured at 100 % elongation for 24 hours 80 % Tear Propagation Resistance Cured 7 days at +23 °C and 50 % R.H. 5.0 N/mm Movement Capability ± 25 % (ISO 9047) +100 % / -50 % (ASTM C719) Resistance to Weathering 10 out of 10 (ISO 19862) Service Temperature Maximum +70 °C Minimum -40 °C Joint Design For movement joints, the width must be at least 8 mm and should not exceed 40 mm. For non-movement joints such as connection joints in interior areas, the joint width can be less than 8 mm. The joint dimensions must be designed to suit the movement capability of the sealant. In all cases joints must be at least 8 mm deep or a have a width to depth ratio of 2 : 1 whichever is greater. For more information about joint design and calculations refer to the Sika document Design guideline: Dimensioning of construction joints or contact Sika Technical Services. Elongation at break Cured 7 days at +23 °C and 50 % R.H. Measured at 100 % elongation at -20 °C 800 % | ||||||||||||||||||||||
Application Information Backing Material Use closed cell, polyethylene foam backing rod. Sag Flow
Product Temperature
Ambient Air Temperature
Substrate Temperature
Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point. Curing Rate
Skin Time
Tooling Time
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