HIGH-PERFORMANCE, SELF-LEVELING SEALANT FOR FLOORING AND CIVIL ENGINEERING APPLICATIONS Sikaflex PRO-3 SL is a 1-component, moisture-curing, self-leveling, elastic joint sealant with high mechanical and chemical resistance. - Movement capability of ± 35% (ASTM C 719).
- Very high mechanical and chemical resistance.
- Bubble-free curing.
- Self-leveling.
- Good adhesion to most construction materials.
- Solvent-free.
- Very low emissions.
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Usage Sikaflex PRO-3 SL is designed for horizontal applications in movement and connection joints in floors, pedestrian and traffic areas (e.g. parking decks, car parks), warehouses and production areas, applications in the food industry, ceramic tiles such as in public buildings etc. and floor joints in tunnel construction. Advantages - Movement capability of ± 35% (ASTM C 719).
- Very high mechanical and chemical resistance.
- Bubble-free curing.
- Self-leveling.
- Good adhesion to most construction materials.
- Solvent-free.
- Very low emissions.
Packaging 600 ml foil pack, 20 foil packs per box
23 l hobbock
Colour Concrete Grey and Black |
Technical Information Shore A Hardness 28 approx. (after 28 days) | (ISO 868) |
Secant Tensile Modulus | ~0.45 N/mm2 at 100 % elongation (23 °C) | (ISO 8339) | | ~0.80 N/mm2 at 100 % elongation (−20 °C) | |
Movement Capability | ±25 % | (ISO 9047) | | ±35 % | (ASTM C 719) |
Tear Propagation Resistance
Service Temperature −40 °C to +70 °C
Chemical Resistance Sikaflex PRO-3 SL is resistant to water, seawater, diluted alkalis, cement slurry and water dispersed detergent, diesel and jet fuel according to the DIBt guidelines.
Sikaflex PRO-3 SL is not resistant to alcohols, organic acids, concentrated alkalis and concentrated acids as well as hydrocarbons.
Joint Design The joint width must be designed to suit the joint movement required and the movement capability of the sealant. The joint width shall be ≥ 10 mm and ≤ 35 mm. A width to depth ratio of 1:0.8 must be maintained (for exceptions, see table below). Standard joint widths for joints between concrete elements for interior applications:
| Joint distance [m] | Min. joint width [mm] | Min. joint depth [mm] | | 2 | 10 | 10 | | 4 | 10 | 10 | | 6 | 10 | 10 | | 8 | 15 | 12 | | 10 | 18 | 15 |
Standard joint widths for joints between concrete elements for exterior applications:
| Joint distance [m] | Min. joint width [mm] | Min. joint depth [mm] | | 2 | 10 | 10 | | 4 | 15 | 12 | | 6 | 20 | 17 | | 8 | 28 | 22 | | 10 | 35 | 28 |
All joints must be correctly designed and dimensioned in accordance with the relevant standards, before their construction. The basis for calculation of the necessary joint widths are the type of structure and its dimensions, the technical values of the adjacent building materials and the joint sealing material, as well as the specific exposure of the building and the joints.
For larger joints please contact our Technical Service Department.
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Application Information Sag Flow Self-leveling, can be used on slopes ≤ 3% | |
Ambient Air Temperature +5 °C to +40 °C, min. 3 °C above dew point Substrate Temperature +5 °C to +40 °C Backing Material Use closed cell, polyethylene foam backing rods. Curing Rate | ~3.5 mm/24 hours (23 °C / 50 % r.h.) | (CQP 049-2) |
Skin Time | ~100 minutes (23 °C / 50 % r.h.) | (CQP 019-1) |
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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.
