MICROTOP Special Mortar/Filler TW 02

Application

For the production of spray mortar using the wet spray sealing flow process as well as for the coating of surfaces, to increase concrete cover and finish in the drinking water sector. MICROTOP TW 02 has an extremely low pore volume.

Properties

• microsilica-coated
• Low modulus of elasticity
• Low pore volume
• Open to water vapour diffusion
• Impermeable Waterproof
• Smooth and fillable
• Machine

sprayable Processing

• Substrate: The load-bearing concrete/old plaster (adhesive tensile strength at least ≥ 1.5 N/mm2) must always be blasted, preferably with HD water ≥ 1,000 bar. For a force-fit composite, the surface must be crack-free, even, free of loose and crumbly components and ultra-fine mortar enrichments, as well as rough and open-pored. Pre-wet the substrate thoroughly one day before processing. Any gravel nests, cavities, etc. must be levelled with a MICROTOP TW 02 scratch filler.

• Processing: Mix MICROTOP TW 02 as a complete container with the prescribed amount of water for approx. 3 minutes with a slow-running whisk. The application is carried out in accordance with DIN 18551 by dense phase conveying or filler technology.

The

air conditioning of the water chambers to prevent condensation must be ensured until the applied material has achieved sufficient mechanical strength. By using humidifiers, the relative humidity must be kept at 95% for at least 10 days after application. The heat input must not exceed 20 °C. Draughts and major air movements are to be avoided.

Delivery form

25 kg paper special packaging

Storage

Store in a dry place like cement. Shelf life approx. 12 months.

Quality: C30/37

Grain size: 0 - 0.2 mm

Colour: natural

Density: approx. 2.04 kg/l

Temperature (processing, ambient and substrate temperature): ≥ 5 °C

Water / cement value (W/Z): ≤ 0.4 - ≤ 0.5

Water addition: approx. 5 - 6.25 l/25 kg Container

Layer thickness: approx. 2 - 5 mm

DVGW Worksheet (Type Class 1, W 300, W 347): yes