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Anhydrite Liquid Screed - Gypsol HTC - High Strength High-Performance Screed

Verified by manufacturer 4 months ago

LKAB Minerals Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

Gypsol HTC is a high strength high-performance screed explicitly designed to enhance the thermal properties of an underfloor heating system.

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Application

This free-flowing and self-compacting liquid screed produces a highly efficient heating system with a co-efficient of performance some 25% higher than competing sand cement screed systems. The screed is independently third-party verified for the thermal conductivity of up to 2.5 W/mK.

Screed will give you a surface finish which is:

  • Smooth.
  • Flat.
  • Level.


Therefore, it forms a subfloor for tiles, vinyl, laminate, or any other floor covering for internal floors.


Specially trained screeders using specialized equipment pump Gypsol HTC into place. Screed can be applied thinner than other flowing screeds because it requires just a 20 mm cover to any underfloor heating pipes/cables. Improves overall diffusivity and offers unrivaled thermal performance.

Description

Gypsol HTC is specifically formulated for use with underfloor heating and cooling systems. It suitable for both warm water and electric underfloor heating.


Gypsol Binder is an integral component of Gypsol HTC, a screed specially formulated to allow thinner depths than other Gypsol liquid screeds, allowing just a 20 mm cover to heating conduits. Gypsol HTC is designed to offer high thermal performance in conjunction with underfloor heating and cooling systems. Gypsol HTC is suitable for all types of floor covering, including traditional tiles, carpets, vinyl, and wood floors.


Features and benefits:

  • Rapid application.
  • Unrivalled thermal performance.
  • Up to 2.5 W/mK thermal conductivity.
  • Up to 25% improvement in COP.
  • Reduced depth.
  • Reduced operating energy.
  • Higher output.
  • Up to 94% lower Carbon Emissions.
  • Thin Screed sections: 40 mm Floating Commercial, 35 mm Floating Domestic, 30 mm Unbonded, 25 mm Bonded, 20 mm cover to underfloor heating pipes/cables.
  • Fast drying: 28 days natural drying*, 13 days forced drying*. Is also available in Rapide format for even quicker drying times
  • Rapid commissioning of underfloor heating: Underfloor heating can be commissioned and run after just seven days.
  • No reinforcement nor fibres required.
  • No curing agents required.
  • Fully self-compacting and high density: Offers 80 kg/m² density at just 40 mm.
  • Rapid return to service of work areas.
  • Foot traffic after only 48 hours.
  • Full loading after just seven days.
  • Assured high strength: Minimum Ca-C30—F5.


*Independently tested and based on 50 mm depth at 20˚C and 60% RH. Complete test data is available on request.

General information

Color

White

Finish

Smooth

Material

Other

Guidance for specification option:

Gypsol Screed.

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

25 mm

30 mm

35 mm

40 mm

Uniclass

Pr_35_31_06_77 Screed flooringPrimary

CAWS

K11/295 Floating floor system

M12/120 Resin flooring

M12/12 Resin flooring

M12/35 Coated resin flooring

M12/10 Resin flooring

M12/110 Resin flooring

Specification data - Screed flooring

Third party product certification

BBA certified.

Colour

Off white.

Appearance

Fluid mortar.

Density

2000 kg/m³ (dry); 2200 kg/m³ (wet).

Strength

C25—F4.

Guidance for specification option:

Minimum binder content 800 kg/m³.

Manufacturer guidance

Required strength.

Required Flow

To EN 13454-2, 230—270 mm.

Reaction to fire

Class A1fl Non-Combustible.

Working time

3 hours.

Guidance for specification option:

Place and finish within 3 hours of batching.

Drying time

24—48 hours (foot traffic); 7 days (loading).

Guidance for specification option:

  • Drying (50 mm depth): At 20°C and 60% RH - 28 days Active force drying - 13 days.
  • Can be force dried after 7 days.

ThermalConductivity

Up to 2.5 w/mK.

Depth

Guidance for specification option:

  • Bonded: 25 mm*.
  • Unbonded: 30 mm.
  • Floating: 35 mm domestic/ 40 mm commercial.
  • Acoustic 80 kg/m² @ 40 mm.
  • Cover to conduits 20 mm.


*Prepare the substrate in accordance with BS8204:7:2003 using a gritted two coat epoxy resin DPM or similar.

Manufacturer guidance

Minimum depth requirements.

Sustainability data

Country of product manufacture

United Kingdom

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

7.5 kg CO₂ eq/m²

Guidance for specification option:

Minimum: 6.5 kg/m².

Manufacturer guidance

Maximum.

Third party certifications

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate

EPD

EPD

Gypsol Binder and Gypsol Complete Binder EPD

Literature

Gypsol HTC

Gypsol HTC

Gypsol Product Brochure

Gypsol Product Brochure

Hot and Cold Weather Guide

Hot and Cold Weather Guide

Case studies

New home installed with Gypsol HTC

New home installed with Gypsol HTC