Sikafloor®-2 SynTop-2

9 months from date of production if stored in undamaged original sealed containers

Store in dry conditions at temperatures between +5 °C and +30 °C.

+5 °C Min,  +35 °C Max

Rel. air-humidity : minimum 30% ; maximum 98%
Watch out for efflorescence at low humidity.
Watch out for slow bleeding, slower curing and hardening and slower power-floating operations at high humidity

The above values are dependant upon the concrete reaching its design strength for serviceability and will be affected by changing ambient conditions.

~5 kg/m² - 12 kg/m²

The concrete deliveries should be of consistent quality. A concrete slump in the range 75 to 110 mm will normally give best results. The slab should be of good quality concrete with a minimum water / cement ratio consistent with the production of a fully compacted slab. The compressive strength should be a minimum of 25 N/mm². Use of Sikament or Sika ViscoCrete super-plasticizers is advised to ensure the optimum quality of concrete and where fibres are used, their optimum dispersion within the mix.

Automatic spreader in conjunction with a laser screed:
Spread Sikafloor®-2 SynTop-2 evenly onto the concrete immediately after screeding at 5 kg/m² (example consumption) in one application.

Manual application:
Allow the surface “bleed” water to evaporate. Sprinkle Sikafloor®-2 SynTop-2 onto the screeded concrete evenly in 2 stages.
(first stage: 3 kg/m², second stage: 2 kg/m²) (Example consumption)
Care should be taken to apply the powder to avoid creating ripples etc. in the concrete surface. Overall application rate 5 kg/m². Casting Sikafloor®-2 SynTop-2 powder carelessly or further than 2 metres from point of casting will reduce the consistency of finish.

Compaction:
The first application should be worked into the slab followed immediately by application of the second stage of Sikafloor®-2 SynTop-2.

Curing:
Cure and seal Sikafloor®-2 SynTop-2 immediately after finishing using Sikafloor-ProSeal-22 (refer to separate data sheet).

Application time

Application time for dry-shake products is influenced by every variable which affects the placing of concrete, and will vary greatly depending on the particular conditions.

For mechanical application with automatic spreader and laser screed, the spreading can start almost immediately after concrete has been levelled to allow for the hydration of the dryshake. Compaction with the trowel can start as soon as weight of the power trowels is supported by the concrete.

For manual application, the dryshake must be spread once the concrete can be stepped on, without leaving a print deeper than 3 - 5 mm.

Periodical checking of the condition and development of the concrete will determine the correct time frame for each stage and sequence of application.

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