Product Data Sheet
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SikaWall®-191 Base EM

High performance, cementitious base coat for internal and external wall

SikaWall®-191 Base EM is a cement based filling and levelling plaster for concrete surfaces. SikaWall®-191 Base EM consists of finely crushed white marble and high grade sand of consistent quality and composition, modified with alkali-resistant additives.

  • Provide a levelled and fine surface finish on internal and external walls, ceilings, etc.
  • Higher durability and flexibility
  • Quick drying and easy to apply
  • Thickness of the plaster can be varied to minimise wastage
  • Non-combustible
  • Non-cracking when applied at correct thickness and properly cured
  • Easy to mix – just add water
  • Good adhesion
  • Can be applied by spraying
Product Data Sheet
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Usage

SikaWall®-191 Base EM is a fast and economical way to level uneven substrates such as concrete, aerated concrete, hollow block walls, light-weight blocks, etc.  

Advantages

  • Provide a levelled and fine surface finish on internal and external walls, ceilings, etc.
  • Higher durability and flexibility
  • Quick drying and easy to apply
  • Thickness of the plaster can be varied to minimise wastage
  • Non-combustible
  • Non-cracking when applied at correct thickness and properly cured
  • Easy to mix – just add water
  • Good adhesion
  • Can be applied by spraying

Packaging

25 kg bag

Colour

Grey powder

Product Details

Product Information

Shelf Life

6 months from the date of production

Storage Conditions

Store properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight, rain and water.
Technical Information

Tensile Adhesion Strength

≥ 0.5 N/mm²

(EN 1015-12)

Application

Application Information

Mixing Ratio

6.5–7.0 L of water per 25 kg bag

Layer Thickness

2–5 mm

Fresh Mortar Density

1.6–1.9 kg/l
Consumption

Consumption

1.2–1.3 kg/m² per mm

* Dry powder
* This may only serve as a guideline. It is highly recommended to carry-out trials on site to determine the actual coverage.
Application steps

SUBSTRATE PREPARATION

The substrate must be sound, clean, dry and free from all contaminants e.g. dirt, oils, grease, coatings, surface treatments, etc. If in doubt, apply a test area first. Dry concrete, render or SikaWall® surfaces must be prewetted before application.

MIXING

SikaWall®-191 Base EM must be mixed with clean water at the site using a power drill whisk. Pour the required water into a clean container then add SikaWall®-191 Base EM while stirring continuously until a smooth consistency is achieved. Allow mixture to stand for a few minutes. Mix again and the plaster is ready for use.

 

CLEANING OF TOOLS

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

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