Sikalastic®-8902

• HAPAS Certificate, Sikalastic®-851-8902-827, BBA, Certificate No.15/H237

Polyurethane

12 months from date of production

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

~1,39 kg/l (mixed resin, at +23 °C)

81:19 by weight

~0,5 mm

+5 °C min. / +40 °C max.

< 80 %

Substrate temperature must be min +3 °C above dew point, beware of condensation

+5 °C min. / +50 °C max.

~25 minutes at +23 °C

Minimum waiting time before paving asphalt overlay

~0,75 kg/m²

Refer to Sikalastic®-851 or Sikalastic®-8800 Product Data Sheets

Apply Sikalastic®-8902 within the indicated overcoating time of the applied waterproofing membrane. No further substrate preparation is necessary.

If the overcoating time of the applied waterproofing  membrane is exceeded, the surface must be prepared mechanically by a light grinding and application of the Sikalastic®-810 adhesion promoter.

Stir part A for 3 minutes using a low speed single paddle electric stirrer (300–400 r/min). Add all of part B to part A and mix continuously until a uniform consistency has been achieved. To ensure thorough mixing pour materials into a clean container and mix again for at least 1,0 minute. Over mixing must be avoided to minimise air entrainment. During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing. Mix full units only. Mixing time for A+B = 4,0 minutes.

Apply Sikalastic®-8902 within the indicated overcoating time of the applied waterproofing membrane by brush, roller or airless spray. Ensure a continuous coat covers the substrate.

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