Sikalastic®-560

• Building Energy Performance Laboratory Test Report as per ASTM E 1980

Modified Polyurethane dispersion

12 months from date of production

The product must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C.

~1.35 kg/L (at +30°C)

~66% (At +23°C / 50% Relative Humidity)

~48% (At +23°C / 50% Relative Humidity)

Roof Coating*

*For partial reinforcement Sika® Reemat Premium - 225 is applied at areas with high movement, irregular substrate or to bridge cracks, joints and seams on the substrate as well as for details. On bitumen felt a fully reinforced roof waterproofing system has to be applied.

Reinforced Roof Waterproofing

Note: Do not apply more than 0.75 kg/m² of Sikalastic®-560 per coat for layers without reinforcement.

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

≥ 50

All values refer to the inital (properly cured, non-weathered) status of Sikalastic®-560 white.

All values refer to the inital (properly cured, non-weathered) status of Sikalastic®-560 white.

All values refer to the initial (properly cured, non-weathered) status of Sikalastic®-560 white.

+8°C min. / +40°C max.

80% max.

+8°C min. / +40°C max.

Beware of condensation!

Surface temperature during application must be at least 3°C above dew point.

≤ 6%

No water / moisture / condensation on the substrate is desired during application

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.
For the Waiting Time / Overcoating, please refer to the PDS of the appropriate cleaner and primer. Other substrates must be tested for their compatibility. If in doubt, apply a test area first.

8 - 12 hrs depending upon the changing ambient conditions particularly temperature and relative humidity

Sikalastic®-560 can be applied using a thick hair brush, short piled lamb skin roller or airless spray equipment. Use a short piled lamb skin roller to ensure a consistent thickness of the seamless Sika® Roof systems.
For application of Sikalastic®-560 to all details and penetrations use a good quality thick hair brush.

Airless spray equipment can be used for quick application of Sikalastic®-560 system. Two spray applied layers is the minimum requirement. The pump should have the following parameters:

Cementitious Substrates

New concrete should be cured for at least 28 days and should have a pull off strength > 1.5 N/mm².

Cementitious or mineral based substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and to achieve an open textured surface.

Loose friable material and weak concrete must be completely removed and surface defects such as blowholes and voids must be fully exposed.

Repairs to the substrates,filling of joints, blowholes/voids must be fully and surface levelling must be carried out using appropriate products from Sika^® range of products.

High spots must be removed by grinding, etc

If dust, vegetation, moss / algae or other contaminants are present on the existing roof, a power washer is required to clean the substrate prior to the application of Sikalastic®-560 Roofing System. Existing chippings should be removed by hand or scrabbling prior to power washing.

The concrete must be carefully assessed for moisture content, air entrapment and surface finish prior to any coating work.

Brick / porous stones
Mortar joints must be sound and preferably flush pointed. Use localised reinforcement over joints and prime before applying Sikalastic®-560.
 

Slates / tiles / polished stones
Ensure all slates/tiles/polished stones are sound and securely fastened, replacing obviously broken or missing sections. Fully glazed tiles/stones must be abraded prior to priming and subsequent treatment with Sikalastic®-560.
 

Bituminous felt
Ensure that Bituminous felt is firmly adhered or mechanically fixed to the substrate. Bituminous felt should not contain any badly degraded areas. Prime and always use a fully reinforced system.

 
Bituminous coatings
Bituminous coatings should not have sticky or mobile surfaces, volatile mastic coatings, or old coal tar coatings. Prime and always use a fully reinforced system.

 
Metals
Metals must be in sound condition. Abrade exposed surfaces to reveal bright metal. Replace any rusted or damaged portion. For precoated sheets, check for any delamination of existing paint. Use Sika® Multiseal T and localised reinforcement over joints and fixings.
 

Wooden substrates
Timber and timber based panel roof decks are to be in good condition, firmly adhered, or mechanically fixed.

 
Paints/Coatings
Ensure the existing material is sound and firmly adhered. Remove any oxidized layers and use localised reinforcement over joints.

Prior to application, stir Sikalastic®-560 thoroughly with the paddle mixer for one minute in order to achieve a homogeneous mixture.
Over mixing must be avoided to minimise air entrainment.

Prior the application of Sikalastic®-560 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 (door frame) have to be protected with an adhesive tape

Roof Coating: Sikalastic®-560 is applied in two or three coats. Prior to the application of a 2^nd coat the indicated waiting time in the table above shall be allowed.

Roof Waterproofing: Sikalastic®-560 is applied in combination with Sika Fab 1 or Sika^® Reemat Premium - 225.

1. Apply first coat of appr. 0.75 kg/m² (for non-absorbing substrates) – 1.00 kg/m² (for absorbing substrates) of Sikalastic®-560 on a length of approx. 1m.
2. Roll in the Sika Fab 1 or Sika^® Reemat Premium - 225 and ensure that there are no bubbles or creases. Overlapping of the Sika Fab 1 minimum 5 cm.
3. Apply second coat of approx. 0.25 kg/m² - 0.5 kg/m² coat right into the wet fleece to achieve the required film thickness. The entire application shall happen while Sikalastic®-560 is still liquid, wet in wet.
4. Repeat step 1–3 until the roof area is waterproofed.
5. After the two coats are dry, seal the roof area with one or more additional coats of Sikalastic®-560 (≥ 0.5 kg/m² per coat).

Please note, always begin with details prior starting with waterproofing the horizontal surface.

 
For detailed information regarding application method please refer to Method Statement of Sikalastic®-560.

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