Product Data Sheet Show all documents
Sika® Flexitape Heavy

Sika® Flexitape Heavy

Sika® Flexitape Heavy is a flexible knitted polyamide used as localised reinforcement with Sika® Liquid Applied Roofing Membranes and balcony waterproofing systems. Unlike conventional scrims, it is readily capable of stretching within the membrane to accommodate a high degree of thermal and structural movement.

  • Easy and quick application
  • Follows surface contours and is easy to adjust to complicated details
  • Enhance the crack-bridging properties of the system
  • Enhance mechanical properties of the system
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Product Data Sheet Show all documents

Usage

  • Localised reinforcement for Sika® systems used over joints or cracks liable to movement and for bridging gaps between substrates
  • Localised reinforcement used in in the construction of expansion joints
  • For new construction and refurbishment projects
 

Advantages

  • Easy and quick application
  • Follows surface contours and is easy to adjust to complicated details
  • Enhance the crack-bridging properties of the system
  • Enhance mechanical properties of the system

Packaging

Roll width

Roll length

75 mm

50 m

150 mm

50 m

Colour

White

 

Product Details

Product Information

Chemical Base

Knitted Polyamide

Shelf Life

Product does not expire if correctly stored

Storage Conditions

The product must be stored properly in original, unopened and undamaged sealed packaging, flat and wrinkle free, in dry conditions at temperatures between +5 °C and +35 °C.

Application

Application steps

SUBSTRATE QUALITY

The surface must be sound, of sufficient strength, clean, dry and free of dirt, oil, grease and other contamination. Depending on the material the substrate must be primed or mechanically cleaned. Grinding may be necessary to level the surface. Suitable substrates are such as: concrete, bituminous felts and coatings, metal, brickwork, asbestos cement, ceramic tiles, wooden substrates.


For detailed information regarding substrate preparation and primer chart please refer to the Method Statement of the corresponding Liquid Applied Membrane system.

APPLICATION

Prior the application of the Sikalastic® the priming coat if used must have cured tack-free. For the Waiting Time / Overcoating please refer to the PDS of the appropriate primer. Damageable areas (handrails etc.) have to be protected with tape or plastic wrapping.
Sika® Flexitape Heavy is applied in combination with Sikalastic® Liquid Applied Membrane systems.

  1. Apply first coat of of Sikalastic® Liquid Applied Membrane approximately 33 % wider than the tape with a consumption rate according to the PDS of the Liquid Applied Membrane. Work only so far in advance that the material stays liquid.
  2. Roll out the Sika® Flexitape Heavy and ensure that there are no bubbles or creases. Overlapping of Sika® Flexitape Heavy must be minimum 5 cm and ensure overlaps are sufficiently wet to bond. The roller may require only a little extra material to remain wet but no further significant material needs to be added at this stage.
  3. After the coat is dry, apply a second coat of Sikalastic® Liquid Applied Membrane with a consumption rate according to the PDS of the Liquid Applied Membrane.
     

Please note, lay the tape as naturally as possible, direct from the roll, inner face upwards in order to avoid edge curl.

For detailed application information please refer to the Method Statement of the corresponding Liquid Applied Membrane system.

 

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