Longfloor Th7n
Longfloor Th7n is a specifically engineered low profile self-levelling cementitious liquid floor screed. Longfloor Th7n is a combination of Longfloor binder, Retanol Xtreme Pro 1, cement, water and a sand which is compatible. Longfloor Th7n is a high performing screed which complies with BSEN 13813:2002.
Longfloor Th7n has been designed for use in low profile screeds at depths ranging from 12 to 50mm, giving the end user an alternative option to an SLU material or a traditional sand and cement screed.
Features & Benefits
Benefits Of Longfloor Th7n
- Thin Section – Up to 70% less compared to traditional screed
- Light Weight – Down to 24kg/m2 when bonded, offering up to a 70% lighter solution compared to traditional screed
- Versatility – Suitable for most floor conditions and all different types of floor finishes
- Cost Savings – Readymix solution, no on site mixing required, no need for bag storage or disposal, ensures high productivity
- Ease of placement – High fluidity, no reinforcement required
- Less labour intensive – Self compacting
Technical Information
Longfloor Th7n is produced in an ISO 9001 quality-controlled environment and meets the requirements of BS EN 13813:2002.
Compressive strength C30
Flexural Strength F8
Minimum Thickness Bonded – 12mm
Unbonded – 20mm
Floating Domestic – 35mm
Commercial – 40mm
Low profile underfloor heating systems – 20mm above pipe
Drying shrinkage <0.5mm/m
(28 days)
Flow Rate 260 – 280
Fresh Density 2100 – 2200 kg/m3
Substrate Type Suitable for most substrates
Surface Irregularity SR2 – BS 8204-7
ISCR Test Category A
Foot Traffic 24 – 48hrs
Maximum Bay Sizes Unheated = 250m²
Heated = 100m²
(floor area ratio to be considered)
The depths stipulated above are based on a standard thermal insulation being used, screeds can be installed at reduced depths if a higher strength insulation is used. For further guidance please contact our Technical Team.
