Bostik Screedmaster Flow - Bedding and underlay compounds

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Bostik Screedmaster Flow is a two-part, protein and casein free, cementitious underlayment with improved workability for smoothing uneven floors prior to laying decorative floor coverings.

The high flow, easy trowelling compound can be used over most common substrates including concrete, sand/cement screeds, stone, anhydrite screeds, terrazzo and quarry tiles, as well as asphalt and other strong, rigid subfloors.

The moisture tolerant formula enables Bostik Screedmaster Flow to be used to smooth rough textured subfloors prior to the application of Bostik Screedmaster damp proof membranes in buildings incorporating a base DPM.

As Bostik Screedmaster Flow is totally protein and casein free, it's suitable for use in biologically sensitive areas, while the low odour formulation also makes it ideal for use in occupied buildings.

Screedmaster Flow can be used with warm water underfloor heating installations provided a maximum surface temperature of 27°C is not exceeded.

Features and benefits:

  • Excellent flow characteristics.
  • Protein-free and low odour.
  • Ideal for use with thin vinyl and LVT.
  • Can be used under a surface DPM.
Platform Compatible Version Certified to
IFC IFC - 1 2.0
Revit Revit 2017 + 1 2.0

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Properties and values

IFC
IfcExportAs
IfcCoveringType
IfcExportType
NOTDEFINED
COBie
BOS_General
NBS_Data
ApplicationTemperature
+5°C to +35°C
ApplicationThickness
Feather edge to 20 mm (bulk out above 10 mm)
Classification
CT-C25-F7
CompressiveStrength
>25 N/mm²
Coverage
Approx. 5 m² at 2- 3 mm thickness (20 kg Bag + 4.17 L Polyjerry)
DryingTimes
Foot traffic: 1.5 hours (<3 mm thickness) at 20°C, Loose lay floor coverings: 8 hours (<3 mm thickness) at 20°C, Bond textile floor coverings: 12 hours (<3 mm thickness) at 20°C, On non-absorbent subfloors lay floor coverings: 24 hours 3 mm thickness) at 20°C
FlexuralStrength
>7 N/mm²
Form
Two part bag & bottle
GaugingLiquid
S y nthetic Rubber
Storage
Unopened, clear of the ground. Cool, dry conditions. Protect from excessive draughts, damp, condensation, dew, etc
WorkingTime
20 minutes after mixing, dependent on conditions
Pset_CoveringCommon
Pset_CoveringFlooring

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