Sikalastic®-851

Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings

• Coating for concrete protection according the requirements of EN 1504-2/2004, DoP 02 07 0 20 5001 0 000003, certified by FPC Notified Body and provided with CE-Marking
• KIWA Polymer Institut GmbH, report No. P9016-1-E, 2014, Testing od static and dynamic crack bridging ability in accordance with DIN EN 1062-7, as well as bond strength after freeze-thaw-cycling with de-icing salt immersion and after thundershower cycling in accordance with. DIN EN 13687-1 and -2, in combination with Sikafloor®-161
• KIWA Polymer Institute GmbH, report No. P7934, 2014,Testing of the root resistance in accordance with DIN 4062
• Prüfinstitut Hoch, test report No. 140941, reation to fire classification in accordance with DIN EN 13501-1
• Dr. Kemski, determination of radon diffusion coefficient and radon diffusion length in accordance with DIN ISO 11665-10
• KIWA Polymer Institute GmbH, test report P-10064-1, test on accordance with German Guideline "Liquid applied waterproofing kits for buildings" (PG-FLK)

Poyurethane/ Polyurea Hybrid

12 month from date of production

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

Density values determined at +20 °C

~99 %

Sikalastic®-851 is resistant to de-icing salts, bitumen, alkalis, fresh- and ground water and various chemicals. Contact Sika Technical Department for specific information.

Part A : Part B = 1 : 1 (volume)

~2 mm

+1 °C min. / +40 °C max.

85 % max.

+1 °C min. / +50 °C max.
Min. 3 °C above dew point, beware of condensation

24 h at +20 °C

~11 s at +20 °C

1 – 2 min at +20 °C

~1.05 kg/m² per mm thickness

The concrete substrate must be sound and of sufficient compressive strength (minimum 25 N/mm2) with a minimum pull off strength of 1.5 N/mm2.
The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc.
Concrete substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and achieve an open textured surface.
Weak concrete must be removed and surface defects such as blow holes and voids must be fully exposed.
Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur®, Sika® Monotop®, SikaRep® and Sikagard® range of materials.
All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum.

The surface must be sound, of sufficient strength, clean, dry and free of dirt, oil, grease and other contamination.
All substrate must be primed or mechanically cleaned. Grinding may be necessary to level the surface. Suitable substrates are, for example  Concrete, bituminous felts.
For detailed information regarding substrate preparation and primer chart please refer to Method Statement.

For the consumption rates and waiting time / overcoating please refer to the PDS of the appropriate primer. Other substrates must be tested for their compatibility. If in doubt, apply a test area first.

Dose and mix with a suitable air driven or electrical plural component heated spray equipment. Both components must be heated up to approximately 80 °C. The accuracy of mixing and dosage must be controlled regularly with the equipment. Thoroughly stir part B (Amine) using a drum stirrer until a homogenous colour is obtained.

Clean all tools with Thinner C immediately after use. The application equipment has to cleaned and filled with Mesamoll. Hardened and/or cured material can only be removed mechanically.