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Sikalastic®-152 SA

Fibre-reinforced cementitious mortar for flexible waterproofing and concrete protection

Sikalastic®-152 SA is a 2-component, crack-bridging, fibre-reinforced cementitious mortar, with low elastic modulus with special additives for waterproofing and protection of concrete subgrades subject to flexural strain. Suitable for use in hot and tropical climates.

  • Flexible waterproofing and concrete protection in one product
  • Very good crack-bridging abilities
  • Reliable application also in very humid environment
  • All components ready delivered, no additional mixing water required
  • Applicable also on lightly humid substrate
  • Non sagging: easy application also on vertical walls
  • Excellent adhesion onto lots of substrates such as concrete, cement mortars, stone, masonry
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Usage

  • Flexible waterproofing and protection of hydraulic structures such as basins, tanks, concrete piping, bridges and canals
  • Waterproofing of bathrooms, shower, terraces, balconies, swimming pools before the application of ceramic tiles bonded with adhesives
  • Waterproofing and protection of outer walls to be buried into the ground
  • Inside waterproofing of light counter pressure water of walls and floors in basements
 

Advantages

  • Flexible waterproofing and concrete protection in one product
  • Very good crack-bridging abilities
  • Reliable application also in very humid environment
  • All components ready delivered, no additional mixing water required
  • Applicable also on lightly humid substrate
  • Non sagging: easy application also on vertical walls
  • Excellent adhesion onto lots of substrates such as concrete, cement mortars, stone, masonry

Packaging

Ready batched 33 kg units:
Comp. A (liquid): 8 kg Comp. B (powder): 25 kg

Colour

Grey

Product Details

Product Information

Composition

Cement modified with polymers, selected alkali-resistant aggregates, microsilica and fibres.

Shelf life

12 months from the date of production, if stored properly in undamaged original sealed packaging.

Storage conditions

In dry and cool conditions.

Maximum Grain Size

Dmax : ~0.3 mm
System information

System Structure

For bonding tiles or equivalent materials directly on Sikalastic®-152 SA, use SikaCeram® C2 type according to EN 12004 or an adhesive compatible with Sikalastic®-152 SA. The application can take place after the second layer has fully cured.
Technical Information

Tensile Adhesion Strength

≥ 0.8 N/mm2 (28 d)

(EN 1542)

Crack Bridging Ability

Static

≥ 0.9 mm (+23 °C)

Dynamic

≥ 0.2 mm

(5 cycles / +23 °C)

Water Penetration under Pressure

No penetration at 5 bar water pressure

(DIN 1048-5)

Application

Application Information

Mixing Ratio

Comp. A : Comp. B = 8 : 25 (weight)

Fresh Mortar Density

~1.55 kg/l

Layer Thickness

Minimum 2 mm with constant thickness, applied in minimum 2 layers (maximum recommended thickness per layer is 2 mm)

Ambient Air Temperature

+5 °C min. / +40 °C max.

Substrate Temperature

+5 °C min. / +40 °C max.

Pot Life

~2 h (+25 °C)

Waiting Time / Overcoating

Sikalastic®-152 SA must be properly hardened before over coating or contact with water. The following waiting times can be used as a guide:

+20 °C

Waiting time between coats

~24 hours

Lining with tiles

~24 hours

Coating by emulsion coat~2 days
Immersion in water~2 days

Waiting times may vary depending on humidity of environment and substrate.
Consumption

Consumption

This depends on the substrate roughness as a guide: ~1.55 kg/m2/mm. This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level and wastage etc..
Application steps

MIXING

Sikalastic®-152 SA can be mixed with a low speed (~500 r.p.m.) electric drill mixer. Shake carefully Comp. A before using. Then pour ~½ Comp. A into a suitable mixing container and add Comp. B slowly while mixing. When homogeneous, add the remaining amount of Comp. A, and mix thoroughly at least for 3 minutes, until the proper lump-free consistency is reached.
Do not add any additional water or other ingredients; each packaging unit must be entirely mixed.

 

APPLICATION

All connections between the substrate and pipe entries, plant and equipment, light switches etc., must be sealed and watertight. Joints in concrete, pipes, anywhere else in the structure must also be sealed and made watertight.

Use coved details at the floor/wall junctions.

Apply Sikalastic®-152 SA by means of a trowel onto the substrate, exerting a good pressure.

Apply the first coat of Sikalastic®-152 SA using a notched (3 x 3 mm) trowel, with firm even pressure onto the substrate in order to achieve a regular, consistent thickness. As soon as the first layer has hardened, apply the second coat of Sikalastic®-152 SA by trowel, taking care to achieve a uniform and continuous layer, which totally covers the first one.

In highly stressed areas a special alkali-resistant glass fibre fabric (eg. 150 - 160 g/m2 and 0.47 mm thick) shall be placed into the first fresh mortar layer. It shall be well trimmed and fully embedded into the mortar avoiding the formation of voids in the coating.

Sikalastic®-152 SA cannot be smoothed using float or sponge trowel. It is possible to smooth the surface as soon as the curing of the product is complete by light abrasion techniques

CLEANING OF EQUIPMENT

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

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