Sikafloor®-155 WN

Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 01 02 006 0 000003 1053, and provided with the CE marking.

Water dispersed epoxy

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.

All density values at 23°C.

~70 %

~56 %

Part A : B = 3 : 1 by weight

~110 - 180 µm per coat (dry film thickness)

+10 °C min. / +35 °C max.

85 % r.h. max.

Beware of condensation!
The substrate and uncured floor must be at least 3 ºC above dew point to reduce the risk of condensation or blooming on the surface of the applied product.

+10 °C min. / +35 °C max.

Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method. Always confirm substrate moisture content prior to the application of the primer:

• < 4 % for impervious resin finishes. No rising moisture according to ASTM D 4263 test (Polyethylene sheet).
• Can be applied on mat damp green concrete when overcoating with the Sikafloor® EpoCem® range without standing water on the substrate.

All above values at 75 % relative air humidity.

Caution: Expiry of pot life without visible change.

Before applying Sikafloor®-81 / -82 EpoCem® onto Sikafloor®-155 WN allow:

At low temperatures and / or high humidity curing time will increase.
Apply subsequent coats only to tack free primer.

0.3 - 0.5 kg/m²/coat (2.0 - 3.3 m² / kg / coat)

Sikafloor®-155 WN, diluted with water 10 % by weight for the first coat.
Undiluted for the second coat.
This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variation in level or wastage, etc.

Prior to mixing, thoroughly stir part A (resin), then add all of part B (hardener) and mix both liquid parts thoroughly for one minute until a uniform mix has been achieved.
When parts A and B have been mixed for one minute for the first coat, slowly add 10 % of clean water while mixing continues for a further two minutes, until a fully homogenous mix has been achieved.
For the second coat, do not add additional water, but continue the mixing for a total of 3 minutes until a fully homogenous mix has been achieved.
To ensure thorough mixing of both coats, after the minimum 3 minutes mixing, pour the mixed material into another container carefully scraping the sides and mixing paddle with a spatula and then mix again briefly to ensure complete and thorough mixing.
Excessive mixing must also be avoided to minimise air entrainment.

Mixing Tools

Low speed electric stirrer (~ 300 - 400 rpm)

Apply Sikafloor®-155 WN by suitable brush, roller or trowel and overwork with a roller.
Caution
The end of the product’s pot life is not noticeable! Respect the limitations mentioned. Discard material not used within indicated pot life.

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