Polyurethane sealant for floor and wall joints and general purpose adhesive Sikaflex-415 Universal is a 1-part, moisture curing, elastic polyurethane sealant with good mechanical properties and durability for sealing floor and wall joints and adhesive applications. - Good movement capability: ±25 % (ISO 9047), ±35 % (ASTM C719).
- Durable in water and salt water (EN 15651-4).
- Good resistance to weathering (ISO 19862).
- Monomeric diisocyanate content <0.1 %: no user safety training needed (REACH restriction 2023, Annex XVII entry 74).
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Usage The Product is used for: - Construction joints between concrete slabs.
- Connection joints for floor and wall insertions such as gutters or penetrations.
- Joints for crack control (saw-cuts) in concrete pavement as in warehouses or parking areas.
- Movement joints between precast concrete elements.
- General construction bonding applications.
Advantages - Good movement capability: ±25 % (ISO 9047), ±35 % (ASTM C719).
- Durable in water and salt water (EN 15651-4).
- Good resistance to weathering (ISO 19862).
- Monomeric diisocyanate content <0.1 %: no user safety training needed (REACH restriction 2023, Annex XVII entry 74).
Packaging 600 ml foil pack, 20 foil packs per box |
Technical Information Secant Tensile Modulus 100 % elongation (+23 °C) | 0.50 N/mm2 |
Tear Propagation Resistance
Service Temperature Maximum | +70 °C | Minimum | -40 °C |
Chemical Resistance Sikaflex-415 Universal is resistant to: Sikaflex-415 Universal is not resistant to:
Joint Design MOVEMENT JOINTS The joint dimensions must be designed to suit the movement capability of the sealant. The joint width must be a minimum of 10 mm and a maximum of 40 mm. All joints must be correctly designed and dimensioned in accordance with the relevant standards and codes of practice before their construction. The basis for calculation of the necessary joint widths are: A width to depth ratio of 1:0.8 for floor joints must be maintained (for exceptions, see table below). For larger joints, contact Sika Technical Services for additional information. Example for typical joint widths for joints between concrete elements for exterior applications considering 25 % movement capability according to EN 15651-4: | Joint distance | Minimum joint width | Minimum joint depth | | 2 m | 10 mm | 10 mm | | 4 m | 15 mm | 12 mm | | 6 m | 20 mm | 17 mm |
For details of joint design and calculations refer to the following document, Sika Design guidlines: Dimensioning of construction joints. CONNECTION JOINTS, SAW CUTS AND CRACK CONTROL JOINTS Joints not designed to accommodate movement such as connection joints between building elements and saw-cut joints for crack control can be less than 10 mm.
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Application Information Sag Flow 0 mm (20 mm profile, +50 °C) | (EN ISO 7390) |
Product Temperature Maximum | +40 °C | Minimum | +5 °C |
Ambient Air Temperature Maximum | +40 °C | Minimum | +5 °C |
Substrate Temperature Maximum | +40 °C | Minimum | +5 °C |
Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point. Backing Material Use closed cell, polyethylene foam backing rod Curing Rate ~3,5 mm/24 hours (+23 °C / 50 % r.h.) Skin Time 50 minutes (+23 °C / 50 % r.h.) Tooling Time 40 minutes (+23 °C / 50 % r.h.) |
The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.
Contact our sales team for other specifications or custom made products.
