Product Data Sheet
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SikaTop®-121 MY

Polymer modified patching and adhesive mortar

SikaTop®-121 MY is a two part cement based polymer modified trowelable paste, adhesive and filling compound for the protection and repair of concrete and metal surfaces.

SikaTop®-121 MY is an economical and easy to use material offering the following beneficial properties:
  • Easy to mix and apply
  • Good mechanical strengths
  • Excellent adhesion
  • Waterproof
  • Non-toxic
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Product Data Sheet
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Usage

SikaTop®-121 MY is a versatile material that can be uitilised to carry out the following functions:
  • Filling compound to level off irregularities and fill blowholes and fine honeycombs
  • Adhesive for floor and wall tiles
  • Rendering for reservoirs
  • Bonding mortar between new and old concrete
 

Advantages

SikaTop®-121 MY is an economical and easy to use material offering the following beneficial properties:
  • Easy to mix and apply
  • Good mechanical strengths
  • Excellent adhesion
  • Waterproof
  • Non-toxic

Packaging

Part A

5 kg can

Part B

20 kg bag

Colour

Part A

Milky white liquid

Part B

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. Protect from direct sunlight, rain and water.
Technical Information

Compressive Strength

> 35 N/mm² (at 28 days)

(EN 196-1)

Tensile Strength in Flexure

> 10 N/mm² (at 28 days)

(EN 196-1)

Tensile Adhesion Strength

To Concrete

~1.5 N/mm² (at 28 days, concrete failure)

Application

Application Information

Mixing Ratio

Part A : Part B = 1:4 or 1:5 parts by weight (depending on required consistency)

Fresh Mortar Density

~2.0 kg/l

Layer Thickness

Maximum thickness per coat is 5 mm.
Consumption

Consumption

~2.15 kg/m² per 1 mm thickness
Application steps

MIXING

Place the full contents of part A in a suitable container. Add part B and mix with a low speed drill (less than 500 rpm) and stir for 3 minutes until a smooth, even consistency product is achieved.

When used as a filling compound, use only 80–90 % of part A depending on the required consistency.

Note: Normal cement mixers (example tilting drum) are not suitable.

APPLICATION

Tile Adhesive

When using as a tile adhesive or bonding agent, apply to the desired thickness with a notched trowel. For tiling, press the tiles firmly into place whilst the adhesive is still wet.

Bonding Agent

When using SikaTop®-121 MY as a bonding agent to be rendered later, work wet-on-wet with subsequent coats.

Filler

When using as a filler, apply with a spatula or trowel to desired profile and finish smooth.

CURING TREATMENT

Treat exposed surfaces with Sika® Antisol® E curing compound or use other approved curing methods.

CLEANING OF TOOLS

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

 

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