| Sikalastic®-618 is a one-component, cold applied, moisture-triggered polyurethane membrane. It cures to form a seamless and durable waterproofing solution for exposed roof areas and structures. - Single component - No mixing, easy and ready to use
- Cold applied - requires no heat or flame
- Seamless membrane
- Compatible with Sika® Reemat Premium - easy to detail
- Easily recoated when needed - no stripping required
- Economic – provides a cost efficient life cycle extension of failing roofs
- Vapour permeable - allows substrate to breathe
- Elastic - retains flexibility even at low temperatures
- Good adhesion to most substrates – see table
- Fast curing - Free from rain damage almost immediately on application
|
Usage - For roof waterproofing solutions in both new construction and refurbishment projects
- For roofs displaying complex detail areas, even when accessibility is limited
- For cost efficient life cycle extension of failing roofs
Advantages - Single component - No mixing, easy and ready to use
- Cold applied - requires no heat or flame
- Seamless membrane
- Compatible with Sika® Reemat Premium - easy to detail
- Easily recoated when needed - no stripping required
- Economic – provides a cost efficient life cycle extension of failing roofs
- Vapour permeable - allows substrate to breathe
- Elastic - retains flexibility even at low temperatures
- Good adhesion to most substrates – see table
- Fast curing - Free from rain damage almost immediately on application
Packaging 15 l (~20.7 kg) metal pail Colour Cloud Grey (RAL 7045), Storm Grey (RAL 7011) |
Technical Information Tensile Strength Not Reinforced | Reinforced | ~ 4.6 N/mm2 | ~ 18 N/mm2 |
Service Temperature –20 °C min./ +90 °C max.
External Fire Performance On non-combustible substrates | BRoof (t1) / BRoof (t4) | Over built up roofing system | BRoof (t1) / Broof (t2) |
Reaction to Fire Ext F.AA rating Non Combustible substrates |
|
Application Information Ambient Air Temperature +5 °C min. / +40 °C max. Relative Air Humidity 5 % r.h. min. / 85 % r.h. max. Substrate Temperature +5 °C min. / +60 °C max.
≥ 3 °C above dew point Substrate Moisture Content ≤ 4 % pbw moisture content. Test method: Sika®-Tramex meter
No rising moisture according to ASTM (Polyethylene-sheet). Substrates For applications onto podium decks, please consult Roofing Technical Services. Pot Life Sikalastic®-618 is designed for fast drying. High temperatures combined with high air humidity will increase the curing process. Thus, material in opened containers should be applied immediately. In opened containers, the material will form a film after 1 hour approx. (+20 °C / 50 % r.h.) Waiting Time / Overcoating Ambient conditions | Minimum waiting time* | +5 °C / 50 % r.h. | 18 hours | +10 °C / 50 % r.h. | 8 hours | | +20 °C / 50 % r.h. | 6 hours | | +30 °C / 50 % r.h. | 4 hours |
*After four days the surface must be cleaned and primed with Sika® Reactivation Primer before continuing.
Note: Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. Applied Product Ready for Use Ambient conditions | Rain resistant* | Touch dry | Full cure | +5 °C / 50 % r.h. | 10 minutes | 10 hours | 19 hours | | +10 °C / 50 % r.h. | 10 minutes | 6 hours | 10 hours | +20 °C / 50 % r.h. | 10 minutes | 4.5 hours | 6 hours | +30 °C / 50 % r.h. | 10 minutes | 2 hours | 4 hours |
*Be aware that impact of heavy rain or rain showers can physically damage the still liquid membrane.
Note: 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.
