Product Data Sheet Show all documents

SikaTop® Seal-109 TH

Polymer-Modified Flexible Cementitious Waterproofing Coating

SikaTop® Seal-109 TH is a cementitious, two-part, polymer-modified flexible waterproofing coating. It is applied to concrete and mortar to prevent water infiltration.

  • Good crack bridging capability
  • Pre-batched components
  • Mixes and applies easily
  • Easily applied by roller or brush
  • Good adhesion to sound substrates
  • Impermeable
  • Increased frost and salt resistance
  • Decreases carbon dioxide penetration
  • Non-toxic, same as cement
  • Flexible
  • Resistant to freezing and thawing (-10°C)
  • Economical
Product Data Sheet Show all documents

Usage

Waterproofing, sealing of hairline cracks and as a protective coating against aggressive elements such as carbon dioxide (for example, in concrete repair work), frost and de-icing agents.
Areas of application include water tanks, basements, car parks, terraces, balconies, bridges, retaining walls, swimming pools, RC gutters, bathroom floors and walls, planter boxes, wet rooms for example kitchens, shower rooms and laundries.    

Advantages

  • Good crack bridging capability
  • Pre-batched components
  • Mixes and applies easily
  • Easily applied by roller or brush
  • Good adhesion to sound substrates
  • Impermeable
  • Increased frost and salt resistance
  • Decreases carbon dioxide penetration
  • Non-toxic, same as cement
  • Flexible
  • Resistant to freezing and thawing (-10°C)
  • Economical

Packaging

36 kg sets (Part A: 10 kg and Part B: 26 kg)

Colour

Part A: White liquid
Part B: Grey powder
Parts A + B (mixed): Dark grey slurry

Product Details

Product Information

Composition

Polymer modified portland cement

Shelf life

6 months from the date of production If stored properly in undamaged, original, sealed packaging.

Storage conditions

Store in dry and cool conditions, protected from direct sunlight.

Density

1.7 – 1.9 kg/l (at temperature 25°C)
Technical Information

Tensile strength

1.4 ± 0.1 (MPa)

Application

Application Information

Ambient air temperature

+8°C minimum

Substrate temperature

+8°C minimum

Pot Life

~ 30 minutes (at +20°C)
Consumption

Consumption

Minimum 2 coats at approximately 1.0 kg/m² per coat. For areas subject to high water ingress, apply a third coat at 1.0 kg/m².
Always ensure waterproof coatings are applied in a minimum of 2 coats.
Application steps

MIXING

Under normal circumstances, when the full quantities of both parts are mixed together, a creamy consistency will result. Mix in a clean container by slowly adding the powder part to the liquid part and stirring with a low speed mixer.

APPLICATION

Whilst the substrate is still damp but free of standing water, apply the first coat by brush, roller of squeegee, working the material well into the
surface to achieve full bond.
Allow 4 – 8 hours (+20°C) for the first coat to cure before applying the following coats.
For large areas, SikaTop® Seal-109 TH can be applied by spray using a suitable worm type mixer/pump.
An additional stripe coat is recommended over cracks, wall/floor intersections, etc. as these locations are where movement is most likely to be expected in service.

CURING TREATMENT

Special curing methods are generally not required but some precautions should be taken for applications directly under sunlight and windy conditions.

CLEANING OF EQUIPMENT

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

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