MasterTop 518 A binder for fast setting site mixed cementitious screed mortar – for fast track installation of cementitious screeds

Formerly: MASTERTOP 518

How does MasterTop 518 work?

MasterTop 518 is a pre-bagged cementitious binder for site mixed screeds; the product is intended to be mixed with approved aggregates. MasterTop 518 is specially formulated to:

  • Improve workability of the mixed screed.
  • Maximise compaction of the laid screed.
  • Reduce shrinkage in the drying screed.
  • Ensure a rapid drying time of the screed
  • Provide a site mixed product of consistent performance.

What is MasterTop 518 used for?

MasterTop 518 ideal as a solution in the following areas:

  • For indoor and outdoor use
  • For areas which are exposed to permanent wetness.
  • For fast track bonded screeds and screeds installed on an isolating or insulating layer.
  • Suitable for heated screeds.
  • As repair mortar for concrete floors and cementitious screeds.
  • For layer thicknesses from 10 to 80 mm for continual layer of application.

What are the benefits of MasterTop 518?

MasterTop 518 offers the following advantages:

  • Can be tiled after approximately 3 days, already walkable after approx. 1 day.
  • On-site mixing of sand required.
  • Different mixing ratios possible.
  • Long working time, can be worked with and smoothed for almost 1 hour despite of short curing time.
  • Suitable for application by pump, even at higher temperatures.
  • Temperature resistant from -30°C to +80°C, therefore suitable for balconies, terraces, garages, industrial floor coverings cleaned with superheated steam.
  • Insensitive to moisture, therefore suitable for areas exposed to permanent wetness.

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