Sikalastic®-618

• European Technical Assessment ETA-20/1016

• Fire Testing EN 13501-5, Sikalastic®-618, Warringtonfire, Reports available on request for various build ups

• Reaction to fire according to EN13501: Euroclass E

• CE marking and declaration of performance based on European Assessment document ETA-20/1016. (EAD) no. EAD 030350-00-0402 for Liquid applied roof waterproofing kits.

• Declaration of Performance No. 49622850 and provided with the CE marking.

One-component, moisture-triggered aromatic polyurethane

9 months from date of production

The product must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures >0 °C and <+25 °C.
Higher storage temperatures may reduce shelf life of product.
Reference shall also be made to the storage recommendations within the safety data sheet.

~79 %  (+23 °C / 50 % r.h.)

~67 % (+23 °C / 50 % r.h.)

Roof Coating*

Sikalastic®-618 is applied in 1 or 2 coats

*For partial reinforcement Sikalastic® Fleece-120 or Sikalastic® Flexitape Heavy is applied at areas with high movement, irregular substrate or to bridge cracks, joints and seams on the substrate as well as for details.
For primer, please refer to the Substrate Pre-Treatment table below.

Reinforced Roof Waterproofing

Sikalastic®-618 is applied in one coat reinforced with Sika^® Reemat Premium and sealed with a further coat of Sikalastic®-618

Note: These figures are theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in level and wastage.

–20 °C  min./ +90 °C max.

+5 °C min. / +40 °C max.

5 % r.h. min. / 85 % r.h. max.

+5 °C min. / +60 °C max.
≥ 3 °C above dew point

≤ 4 % pbw moisture content.

Test method: Sika^®-Tramex meter
No rising moisture according to ASTM (Polyethylene-sheet).

For applications onto podium decks, please consult Roofing Technical Services.

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.)

*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.

*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 surface must be sound, of sufficient strength, clean, dry and free of dirt, oil, grease and other contamination. Depending on the material the substrate must be primed or mechanically cleaned. Grinding may be necessary to level the surface. Suitable substrates are such as: concrete, bituminous felts and coatings, metal, brickwork, asbestos cement, ceramic tiles, wooden substrates.
For detailed information regarding substrate preparation and primer chart please refer to Method Statement No. 850 915 09.

Mixing is not required, however if the product is settled or separated on opening, stir Sikalastic®-618 gently but thoroughly in order to achieve a uniform colour. Stirring gently will minimise air entrainment.

Prior the application of Sikalastic®-618 the priming coat if used must have cured tack-free. For the Waiting Time / Overcoating please refer to the PDS of the appropriate primer. Damageable areas (handrails, etc) have to be protected with tape or plastic wrapping.

Roof Coating:
Sikalastic®-618 is applied in two coats. Prior to the application of a 2^nd coat the indicated waiting time in the table Waiting Time / Overcoating shall be allowed.
Roof coatings may need partial reinforcement over areas of stress or predictable movement eg joints overlaps detailing etc. Use Strips or sections of Sika Reemat Premium for reasonably sound surfaces –asbestos cement etc. For joints with moderate movement eg Metal Sheeting use Sika Flexitape Heavy incorporating bond-break

Reinforced Roof Waterproofing:
Sikalastic®-618 is applied in combination with Sika Reemat Premium.

1. Apply first coat of approximately 1 l/m² of Sikalastic®-618. Work only so far in advance that the material stays liquid.
2. Roll in the Sikalastic® Reemat Premium. Overlap it a minimum 5 cm and ensure overlaps are sufficiently wet to bond both layers.
3. The roller may require only a little extra material to keep wetted but no further significant material needs to be added at this stage.
4. After the coat is dry enough to walk on, seal the roof area with second coat of Sikalastic®-618 at a minimum 0.75 l/m² per coat.

Please note, always begin with details prior starting with waterproofing the
horizontal surface. For details follow step 1-4.

Clean all tools and application equipment with Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.