Gypsol; Anhydrite binder for pumpable, self-smoothing floor screeds

Extensive Gypsol product range

In addition to our Gypsol Classic screed, we have developed a range of exclusive products. Each of these, such as the recently released Gypsol Rapide screed, allow you to incorporate our materials into just about any construction project.

1. Rapide; A self-compacting, self-smoothing, fast-drying floor screed
2. Classic; Our general-purpose screeding system. The most commonly used material in our range.
3. HTC; Gypsol HTC (High Thermal Conductivity) for use with underfloor heating and cooling systems.
4. TS-15; An ultra-thin screed for bonded and un-bonded applications at a minimum depth of 15mm.
5. TS-20; A thin screed suitable for bonded and un-bonded applications down to a 20mm minimum depth.
6. XS; Extra strength material for use in heavy-duty applications, where loading is likely to be higher than normal.
7. TimBRE; Specially formulated and tested for use in timber frame and over timber supported floors including acoustic conditions.
8. Sureflo; Pre-blended product supplied in 25kg bags for mixing on site. Ideal where minimal quantities are required, or access for ready-mix lorries is not possible.
9. Summit; Particularly fit for screeds pumped over very long distances or high buildings of 10 stories and above.
10. Modular; Designed for use in modular construction to allow early movement of units, also for a lightweight steel frame and Lewis Decking.

Easy to place, self-compacting, free-flowing anhydrite screed binder

An extensive range of offsite mixing plants uses our Gypsol. Providing you with the following benefits:

This way of working significantly reduces the negative impact on the musculoskeletal system of installing contractors.

Sustainable Gypsol floor screed solution

As a company at the forefront of screed manufacture, we are ever conscious of the impact we and our customers have on the environment. We therefore continuously aim to reduce our carbon footprint and educate our customers and clients about how they can optimise their designs using Gypsol screeds and help minimise their environmental impact.

Gypsol screed provides benefits, including:

• Low manufacturing carbon footprint
• Low operating energy
• Reduced lifetime impact
• Low-temperature underfloor heating
• Safer to work with
• Low cost
• Reduced waste
• Low embodied energy

Due to the inherent properties of Gypsol Screed and its sustainable credentials, our material has been awarded Silver status by the Supply Chain School for Sustainability.

Low manufacturing carbon footprint

Our carbon footprint has been independently audited and certified, verifying that Gypsol Binder products just 26.26 kg of carbon dioxide per 1 tonne of material manufactured. This compares favourably with cement manufacture, which exerts in the region of 900kg per 1 tonne of material produced.  You could, therefore, save up to 94% of the carbon emissions associated with the manufacture of your floor screed by switching from cement-based to Gypsol screed. Find out more in our carbon footprint guidance sheet.

Low operating energy

The more you reduce the energy used during the operational lifetime of a building, the lower the impact on the environment. Reducing your screed depth offers the opportunity to increase insulation depth. This enables the use of insulation systems which provide a lower GWP (Global Warming Potential) as well as reducing the heat loss through the floor, ensuring the building is as thermally efficient as possible.

Reduced lifetime impact

Gypsol screeds are 100% recyclable, which has a significant effect on the lifetime analysis of a building.

Low-temperature underfloor heating

When using underfloor heating, the key to efficiency is high thermal conductivity coupled with rapid response to changes in ambient conditions. Gypsol screeds offer thermal conductivity as high as 2.5 W/mK compared with 1:4 sand cement screed, which typically offers just 1.1W/mK.

This advantage, coupled with the thinner section, improves the floors ability to generate thermal inertia, increasing the coefficient of performance of the underfloor heating system by up to 25%. Altogether this results in much-reduced flow temperatures and corresponding energy savings.

Gypsol binder toxicology

Our LKAB Minerals’ Gypsol screeds emit no VOCs.

Gypsol origins

LKAB Minerals manufacture Gypsol binder from a by-product of the chemical industry. For every 1 tonne of Gypsol binder used 0.98 tonnes of landfill is avoided. Also, we are the only Anhydrite binder supplier with our own UK based manufacturing facility, ensuring control of the entire process and reducing the carbon footprint associated with transportation and logistics.

Safe to work with Gypsol screed

Gypsol binder does not contain Portland cement. Gypsol screed is supplied ready to use, significantly reducing the manual labour associated with other screed systems. Installation of Gypsol is carried out using specialist pumping equipment and does not require the installer to be on his hands and knees. Gypsol is fully self-compacting and therefore, reduces the negative on the musculoskeletal system of installers.

Low embodied energy

Unlike other binder systems, the manufacturing process for Gypsol binder requires no high-temperature production methods. This means that very little energy is used in the manufacture of our material. When incorporated into Gypsol Screed, it can also be used at much-reduced depths, requiring less material in the construction process. It also allows for more sustainable products to be used in conjunction with the screed, thus reducing the embodied energy of the building. For more information on optimising your design, contact your regional specifications manager.

Gypsol origin

We manufacture Gypsol anhydrite binder to UKCA/CE certified standards in the UK.  LKAB Minerals produce Gypsol binder from a by-product which we retrieve from the chemical industry. Previously this product was used as landfill.

Gypsol toxicology

A non-toxic, non-hazardous stable mineral. You can download the Safety Data Sheet from the documentation tab.

LKAB Minerals can provide support to assist with your Gypsol screed projects.

CPD’s and documentation

The internal support we offer consists of:

• CPD training presentation at your company. FREE of charge, duration ~1 hour. Ask for more information or plan a session via our Area Technical and Specification Managers via below contact form.
• Informational guides:
  • General design
  • Underfloor heating
  • Post-installation guide
  • Floor coverings flow chart
  • Surface preparation guide
  • Ancillary products guide
  • Gypsol comparing sheet
  • Creating joints

NBS Specifications

The Gypsol team can offer a comprehensive NBS Specification for your project. Contact your regional Technical Specification Manager for details.

BIM Modelling

Located with the NBS National BIM Library, BIM Modelling is a specification tool for designers. Our BIM Models are listed below:

• Gypsol classic flowing screed
• Gypsol Modular Gypsum based flowing screed
• Gypsol Solida heated screed system
• Gypsol Summit flowscreed
• Gypsol TimBRE self-levelling anhydrite screed
• Gypsol TS-15 ultra-thin flowing screed
• Gypsol TS-20 thin flowing screed
• Gypsol XS High Strength Anhydrite screed
• Sureflo bagged Gypsum screed
• Gypsol HTC thermal screed

RIBA

The Royal Institute of British Architects (RIBA) provides support to Architects & designers:

• • Riba product selector