High quality thin screed for bonded and unbonded applications.
For bonded applications the subfloor should be appropriately treated, this may include mechanical abrasion e.g. Shot blasting, and the complete removal of arising detritus (preferably using a vacuum cleaner) and the application of an organic polymer bonding agent (epoxy resin or polymer dispersion) prior to installation.
For unbounded applications Supaflo TS-20 should be installed on unfolded polythene sheeting of ideally 500 gauge (approximately 110 μm thick). Thick folded sheeting has the potential to induce cracks in the screed.
Supaflo TS-20 should only be used if the building envelope is complete; doors and windows should be in place and must be closed for the first 24 to 48 hours after installation.
The manufacturer recommends bay sizes should be restricted to 750 m² for areas of approximately equal dimension. For long thin sections the maximum manufacturer recommended aspect ratio is 1:5.
Supaflo TS-20 is a thin section screed based on an anhydrite binder. It is formulated to provide a strong and durable, thin topping to solid internal substrates such as, in situ concrete slabs, beam and block sub floors and precast concrete planks. When tested for in situ crushing resistance to BS 8204:1:2003 Supaflo TS-20 achieved Category A.
If used as an alternative to a smoothing compound some post installation treatment may be required before the final flooring is applied, such as light sanding. Supaflo TS-20 cannot be finished to a feather edge.
Features and benefits:
M13/10 Proprietary trowelled levelling screeds
M13/110 Proprietary trowelled levelling screeds
minimum at any point.
Off-white fluid mortar.
Plastic: 2150–2250 kg/m³; Dry: 1950–2050 kg/m³.
(BS 8204:7 Annex A, Truncated cone).
Reaction to fire
Class A1-fl, non-combustible.
Batched, transported, placed and finished within three hours.
24 to 48 hours.
Five to seven days.
Approximately 1 mm per day.
Compressive strength - 28 days
Binder 10–20 kg per tonne. Mortar: 20–40 kg/m³.
Binder: 98%. Mortar up to 40%.