SikaLatex® MY

Water resistant bonding agent and mortar additive

Formally known as SikaLatex®. SikaLatex® MY is a modified styrene butadiene emulsion to be mixed with cement (neat) or cement / sand mortar for improved adhesion and water resistance properties.

Increases adhesion, flexural and tensile strength
Improves abrasion resistance (less dusting)
Reduces water permeability
Increases chemical resistance
Non-toxic, non-corrosive and non-flammable
Easy to use
Does not re-emulsify even in high alkaline conditions

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Product Data Sheet Show all documents

Usage

For higher strength floor screeds with less ‘dusting’, improved flexibility and resistance to cracking
For wear resistant floor toppings in water treatment works, sewage systems, etc. together with Sika®-1 System
As an additive to repair mortars for patching and filling
As a bonding agent for rendering, tile fixing and masonry jointing mortars, etc.
As a bonding grout between old and new concrete, as well as in construction joints

Advantages

Increases adhesion, flexural and tensile strength
Improves abrasion resistance (less dusting)
Reduces water permeability
Increases chemical resistance
Non-toxic, non-corrosive and non-flammable
Easy to use
Does not re-emulsify even in high alkaline conditions

Packaging

20 L pail
200 L drum (available upon request)

Colour

Milky white liquid

Product Details

Product Information

Shelf Life

12 months from the date of production

Storage Conditions

Store properly in original, unopened and undamaged sealed packaging in dry conditions. Protect from direct sunlight.

Technical Information

Mortar Mix Design

(all mixing ratios given are by volume)

Bonding Coat

SikaLatex® MY : water	1 : 1
Cement : sand	1 : 1
Sand grain size	See "Further Information - Sand"
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.23–0.3 L of SikaLatex® MY per m² per 1 mm thickness based on W/C ratio of 0.5–0.8).

Repair and Patching Mortar, Masonry Joints, etc

SikaLatex® MY : water	1 : 1 for mortar < 10 mm thickness 1 : 2 for mortar > 10 mm thickness
Cement : sand	1 : 1 to 1 : 3
Sand grain size	See "Further Information - Sand"
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.7–2.3 L of SikaLatex® MY per m² per 10 mm thickness based on W/C ratio of 0.5–0.8).

Floor Screeds, Intermediate Coats and Wear Resistant Screeds

SikaLatex® MY : water	1 : 1 to 1 : 2 for hard wearing floors 1 : 2 to 1 : 4 for normal use
Cement : sand	1 : 2 to 1 : 3
Sand grain size	See "Further Information - Sand"
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.4–1.9 L of SikaLatex® MY per m² per 10 mm thickness based on W/C ratio of 0.5–0.8).

Renderings

Normal Rendering with Hydraulic Lime Mortar

SikaLatex® MY : water	1 : 2 to 1 : 4
Binder with sand	1 : 2.5 to 1 : 4
Sand grain size	0.3–0.8 mm
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.3–1.1 L of SikaLatex® MY per m² per 10 mm thickness based on W/C ratio of 0.5–0.8).

Cement / Sand Rendering

SikaLatex® MY : water	1 : 1 to 1 : 2
Cement : sand	1 : 3 to 1 : 4
Sand grain size	0.3–0.8 mm
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.7–1.9 L of SikaLatex® MY per m² per 10 mm thickness based on W/C ratio of 0.5–0.8).

Adhesive Mortar (e.g. as a tile adhesive)

SikaLatex® MY : water	1 : 2
Cement : sand	1 : 2
Sand grain size	0–2 mm with higher proportion of fine sand under 0.2 mm
W/C ratio	Mix to suit requirement / application. Generally, use as little gauging water (SikaLatex® MY solution) as possible.
Consumption	See ‘Consumption’ (approx. 0.7–1.0 L of SikaLatex® MY per m² per 10 mm thickness based on W/C ratio of 0.5–0.8).

Application

Application Information

Ambient Air Temperature

Minimum +5 °C

Substrate Temperature

Minimum +5 °C

Consumption

Approx. SikaLatex® MY requirement in litre per m² per 10 mm thickness. Mixing ratio by volume.

SikaLatex® MY : Water = 2 : 1

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	3.0	4.0
1 : 1.5	2.2	3.0
1 : 2	1.9	2.5
1 : 2.5	1.6	2.2
1 : 3	1.4	2.0
1 : 4	1.2	1.6

SikaLatex® MY : Water = 1 : 1

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	2.3	3.0
1 : 1.5	1.6	2.3
1 : 2	1.4	1.9
1 : 2.5	1.2	1.7
1 : 3	1.1	1.5
1 : 4	0.9	1.2

SikaLatex® MY : Water = 1 : 1.5

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	1.8	2.4
1 : 1.5	1.3	1.8
1 : 2	1.1	1.5
1 : 2.5	1.0	1.3
1 : 3	0.8	1.2
1 : 4	0.7	1.0

SikaLatex® MY : Water = 1 : 2

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	1.5	2.1
1 : 1.5	1.1	1.5
1 : 2	0.9	1.3
1 : 2.5	0.8	1.1
1 : 3	0.7	1.0
1 : 4	0.6	0.8

SikaLatex® MY : Water = 1 : 2.5

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	1.3	1.7
1 : 1.5	0.9	1.3
1 : 2	0.8	1.1
1 : 2.5	0.7	1.0
1 : 3	0.6	0.9
1 : 4	0.5	0.7

SikaLatex® MY : Water = 1 : 3

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	1.1	1.5
1 : 1.5	0.8	1.1
1 : 2	0.7	1.0
1 : 2.5	0.6	0.8
1 : 3	0.5	0.8
1 : 4	0.4	0.6

SikaLatex® MY : Water = 1 : 4

Cement : Sand	W/C Ratio = 0.5	W/C Ratio = 0.8
1 : 1	0.9	1.2
1 : 1.5	0.7	0.9
1 : 2	0.6	0.8
1 : 2.5	0.5	0.7
1 : 3	0.4	0.6
1 : 4	0.3	0.5

Application steps

MIXING

Mix sand and cement first, then add SikaLatex® MY solution as required (SikaLatex® MY solution is SikaLatex® MY diluted with water – see ‘Mortar Mix Design’). Mix either by hand or with a low speed drill for no more than 2 minutes.