Sikafloor®-155 WN

Two part water dispersed epoxy resin primer according to EN 13813:2002, DoP 02 08 11 01 001 0 000002 1053.

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

D.F.T.: ~ 110 - 180 µm per coat

+10°C min. / +35°C max.

85% r.h. max.

Beware of condensation!
The substrate and uncured floor must be at least 3ºC 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 matt - damp green concrete when overcoating with the Sikafloor® EpoCem® range.

Caution: expiry of potlife without visible change. (Above values at 75% r.h.)

Before applying Sikafloor®-81 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 - 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) well, 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 potlife is not noticeable! Keep within the limitations mentioned below. Discard material not used within these times.

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