Polyurethane hybrid elastic top coat for liquid applied membrane waterproofing systems Sikalastic®-701 is a 2-part, polyurethane hybrid, gloss finish top coat for Sika® Liquid Applied Membrane waterproofing systems. - Aliphatic polyurethane providing UV and yellowing resistance
- Good long term weathering performance
- Good colour stability and gloss retention
- Good chemical resistance
- Low soiling and easily cleanable
- Suitable for cool roofs by providing a high Solar Reflective Index
- Resistant to ponding water
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Usage A gloss finish top coat for: - Sika® Liquid Applied Membrane systems
- Sika® 2-C spray applied PU/PUA systems
For the following waterproofing system applications: - Newly applied or renovating existing membranes
- Flat and pitched roof structures
- Communal walkways
- Podium decks
- Terrace roofs
- For exterior use only
Advantages - Aliphatic polyurethane providing UV and yellowing resistance
- Good long term weathering performance
- Good colour stability and gloss retention
- Good chemical resistance
- Low soiling and easily cleanable
- Suitable for cool roofs by providing a high Solar Reflective Index
- Resistant to ponding water
Packaging | Part A | 10,0 kg container | | Part B | 2,5 kg container | | Part A + B | 12,5 kg ready to mix unit |
Refer to current price list for packaging variations Colour | Final colour | White/Pale Grey |
The product can be coloured locally with Sika® In Pail Tinting (IPT) machines. For more information, consult the local Sika customer service. |
Technical Information Tensile Strength | Temperature | Value | | +23 °C | ~10 MPa | | -20 °C | ~20 MPa |
External Fire Performance | Broof T1 / Broof T4 | (prEN 1187) |
Chemical Resistance Resistant to many chemicals. Contact Sika Technical Service for additional information.
Solar Reflectance | Initial Solar Reflectance | 0,88 |
Thermal Emittance | Initial Thermal Emittance | 0,86 |
Solar Reflectance Index | Initial SRI (Convective Coefficient, Medium Wind) | ~112 |
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Application Information Mixing Ratio Part A : Part B = 80 : 20 (by volume) Ambient Air Temperature +2 °C min. / +40 °C max. Relative Air Humidity | Above +20 °C | 35 % min / 80 % max. | | Below +20 °C | 45 % min. / 80 % max. |
Substrate Temperature +2 °C min. / +40 °C max. Dew Point Beware of condensation.
The substrate and uncured applied membrane must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the membrane finish. Substrate Moisture Content Refer to Product Data Sheet of the appropriate base layers Pot Life 1 hour at +20 °C Pot life will decrease at higher temperatures and increase at lower temperatures. Tack Free Time | Condition | Property | Value | | 20 °C / 50 % RH | Tack free time | ~45 minutes | | 20 °C / 50 % RH | Hard drying time | ~60 minutes | | 20 °C / 50 % RH | Final drying time | ~90 minutes |
| Condition | Property | Value | | 5 °C / 50 % RH | Tack free time | ~75 minutes | | 5 °C / 50 % RH | Hard drying time | ~105 minutes | | 5 °C / 50 % RH | Final drying time | ~135 minutes |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. Applied Product Ready for Use | Temperature | Relative Humidity | Rain Resistant | Foot Traffic | Full Cure | | +10 °C | 50 % | ~75 minutes | ~150 minutes | ~1 day | | +20 °C | 50 % | ~60 minutes | ~120 minutes | ~1 day | | +30 °C | 50 % | ~45 minutes | ~90 minutes | ~16 hours |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. |
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.
