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Sikafloor-155 WN, Solvent-Free, Water-Based Epoxy Primer for Floors, Interior, Oxide Red, 10 kg

Sikafloor-155 WN, Solvent-Free, Water-Based Epoxy Primer for Floors, Interior, Oxide Red, 10 kg

Primers, Paints & Pigments
SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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General Specifications
Packaging 10 kg
Chemical Base Water dispersed epoxy
Usage Primer and adhesion promoter for concrete, screeds, and epoxy systems
Application Method Roller
Usage Area Interior
Color Oxide red (~ RAL 3009)
Service Temperature +5 °C min. / +35 °C max.
Storage Conditions The product must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C.
Density 1.4 kg /l
Consumption 0.3 - 0.5 kg/m2 / coat

Sikafloor®-155 WN is a solvent-free, water dispersed primer based on epoxy resin.

  • Easy and fast to apply
  • Especially suitable for highly absorbent substrates
  • Water dispersed and odourless
  • Can be applied in unventilated areas
  • Very good bond strength over its whole application temperature range
  • Environmentally friendly
Usage
As a primer and adhesion promoter on properly prepared:
  • New concrete
  • Cementitious screeds
  • Hardened concrete
  • Existing epoxy floor coatings
  • EpoCem levelling layers
As a primer for:
  • Sikafloor®-81 EpoCem®
  • Sikafloor®-20 PurCem® and Sikafloor®-21 PurCem® if required.
 
Advantages
  • Easy and fast to apply
  • Especially suitable for highly absorbent substrates
  • Water dispersed and odourless
  • Can be applied in unventilated areas
  • Very good bond strength over its whole application temperature range
  • Environmentally friendly
Packaging

Part A

7.5 kg containers

Part B 

2.5 kg containers

Part A+B

10 kg ready to mix units
Colour

Resin - part A

thick coloured paste

Hardener - part B

light yellow translucent emulsion
Mixed ResinOxide red (~ RAL 3009)
Technical Information
Tensile Adhesion Strength

>1.5 N/mm2 (failure in concrete),28 days at +23°C / 50% r.h.

(EN 13892-8)
Application Information
Mixing Ratio

Part A : B = 3 : 1 by weight
Layer Thickness

D.F.T.: ~ 110 - 180 µm per coat
Ambient Air Temperature

+10°C min. / +35°C max.
Relative Air Humidity

85% r.h. max.
Dew Point

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.
Substrate Temperature

+10°C min. / +35°C max.
Substrate Moisture Content

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.
Pot Life

Temperature

Time

+10°C

~ 180 minutes

+20°C

~ 90 minutes

+30°C~ 45 minutes

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

Before applying Sikafloor®-81 onto Sikafloor®-155 WN allow:

Substrate temperature

Min.waiting time

Max.waiting time

+10°C

12 hours

72 hours

+20°C

6 hours

48 hours

+30°C4 hours24 hours

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

Applied Product Ready for Use

Substrate temperature

Foot traffic

+10°C

~ 12 hours

+20°C~ 12 hours

+30°C

~ 12 hours