Every mineral we produce is refined through decades of expertise to meet modern industrial demands. From construction and agriculture to advanced manufacturing, our materials help industries build stronger, cleaner, and longer-lasting solutions.
Gypsol is a mineral product that offers excellent thermal conductivity, making it perfect for underfloor heating systems. Its rapid setting properties allow for faster project completion without compromising on quality.
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LKAB Minerals' Gypsol is the ultimate cement-free, low-carbon liquid floor screed solution.
LKAB Minerals Gypsol is a high-performance liquid floor screed solution designed to deliver smooth, durable, and quick-drying surfaces for a range of construction projects. Gypsol is known for providing a level, crack-resistant finish, ensuring a stable foundation for various flooring types, including tiles, carpets, and hardwood. Gypsol Zero Laitance (ZL) is our new screed that removes the sanding of laitance, enabling faster installation, earlier follow-on trades, accelerated drying and reduced labour and programme times. Find out more here.
Our Gypsol mineral is supplied throughout the UK. We have also supplied into Europe and Australia.
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The benefits of using Gypsol as liquid floor screed
Learn how Gypsol was used in the Wood Wharf buildings in Canary Wharf. Enquire today to find out how Gypsol can enhance your construction projects.
The speed and efficiency of using TS15 has enabled us to screed up to three floors every week to keep up with programme needs. Which is invaluable when projects are sometimes behind schedule and screed is one of the last things to go in.
Scott Baker
Operations Manager
Loughton Contracts
We can lay a whole floor in a day with liquid screed and then within a couple of days foot traffic can return onto it and works can progress whereas if you went down a traditional method you’d be on there at least five six days.
We manufacture Gypsol binder for anhydrite flowing screeds in quality-assured Readymix facilities throughout the UK. Gypsol screeds are also available in specific locations from volumetric on-site mixing systems.
Gypsol screed is made from our high-quality Gypsol anhydrite binder, specially selected sands, and clean water. Therefore, it offers the user a simple and effective floor-screeding solution for floating, unbonded, or fully bonded applications where a subsequent floor covering is required.
Benefits of using Gypsol
Using Gypsol Classic will benefit your screed floor because of:
Rapid application
Thin screed sections
40mm floating commercial
35mm floating domestic
15mm unbonded (TS-15 and Rapide)
15mm bonded (TS-15 and Rapide)
15mm cover to underfloor heating pipes (HTC and Rapide)
Fast drying
28 days of natural drying*
13 days forced drying*
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 80kg/m
2
density at just 40mm
Rapid return to service of work areas
Foot traffic after only 48 hours
Full loading after just seven days
Assured high strength
Range from C25 – C35 to F4 – F6
*Independently tested and based on 50mm depth at 20˚C and 60% RH. Complete test data is available on request.
Our Gypsol screed is available from all Readymix and volumetric screed producers who stock Gypsol Binder.
Applications of our liquid floor screed
Gypsol screeds are versatile and designed for a wide range of flooring applications across residential, commercial, and industrial projects.
Gypsol is suitable for various flooring systems, ensuring high performance, energy efficiency, and durability.
Our Zero Laitance additive is suitable for use with Rapide, HTC and TS-15. Using ZL eliminates sanding, accelerates project delivery time and meets carbon goals for construction.
Environmental information
LKAB Minerals recently had an EPD completed. Click below to see the results.
Completed following ISO 14025, as well as EN 15804:2012 and EN A2:2019, the EPD report found the following total of kg of CO2 per tonne: • Gypsol binder: 91.7 • Gypsol Complete binder: 108
Choose our high-quality Gypsol for your floor screed.
Choose Gypsol from LKAB Minerals for your next flooring project and enjoy reliable, quality floor screed that ensures a smooth and durable finish. Our expert team is here to assist you with product details and installation guidance. Get in touch with us to learn more about Gypsol’s benefits.
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Our Gypsol Rapide is a unique and highly innovative faster-drying screed. Mainly because it is developed using anhydrite, specially graded sands and selected additives to create a free-flowing, self-compacting and self-smoothing floor screed.
Quick-drying and installation
The screed has a drying time of as little as 14 days (condition dependent). Therefore, Gypsol Rapide dries in a fraction of the time of traditional anhydrite or cementitious screeds.
Gypsol Rapide offers rapid installation, covering up to 2,000m2 per day. On top of that, it is independently tested to ensure quality and consistency. LKAB Minerals range of screeds has third-party accreditation and is available from trained installers.
Exciting Gypsol Rapide launch
“This is an exciting step for the Gypsol brand and LKAB Minerals,” says John Fry, Commercial Manager for Gypsol. “The launch of our Rapide screed will ensure we service the ever-changing needs of our customers. And also allow for rapid installation in challenging construction projects.”
Customer support and innovation
LKAB Minerals range of Gypsol products is continuously evolving. First of all, we invest continuously in the R&D and improvement of new and existing products. And secondly, the company offer ongoing support to customers in the development and installation of Gypsol products.
In addition, we provide training to installers, to ensure they install their products correctly. Technical support is available through LKAB Minerals specialist UK team. Additionally, we can provide product testing in the interim until we established independent testing.
We designed our range of screeds specifically to meet the needs of the customer. You can place these screeds in just about any project; from traditional masonry and lightweight steel frames to timber frames and high strength applications.
Gypsol liquid flowing screed FAQs
Gypsol is a high-performance, anhydrite-based liquid screed binder for smooth, self-levelling floors. Compared to sand-cement screeds, it flows better, dries faster, and achieves more consistent strength, making it ideal for precise residential and commercial floors.
Gypsol offers a range of screeds and additives to suit different needs: – Classic: Standard liquid screed for general use – Rapide: Fast-drying screed for quick projects – HTC (High Thermal Conductivity): Optimised for underfloor heating – TS-15 & TS-20: Thin screeds for bonded or unbonded applications – TimBRE: Acoustic screed for timber floors – XS: Extra-strength screed for heavy-duty floors – Summit: Pumped installations and high-rise projects – Modular: For modular buildings and lightweight steel decks – Gypsol Zero Laitance (ZL): Eliminates surface laitance, removes sanding, and accelerates project delivery
Gypsol reduces embodied carbon by replacing part of the cement content with anhydrite binder. Like GGBS and Calcined Clay, it significantly lowers CO₂ emissions compared to traditional sand-cement screeds.
Typical thicknesses range from 15 mm for thin screeds (TS‑15/TS‑20) up to 65 mm for heavy-duty commercial floors. Its self-levelling properties ensure consistent coverage at any thickness.
The HTC variant offers excellent thermal conductivity, rapid heat response, and minimal shrinkage, preventing cracks and maximising energy efficiency.
Drying times vary by variant and thickness but generally take 2 to 7 days, far faster than cement-based screeds, which can take up to 28 days. Gypsol Zero Laitance (ZL) further speeds up project delivery by eliminating sanding.
Yes, the Summit variant maintains flow over long distances without segregation, making it ideal for multi-storey buildings.
TimBRE screeds reduce impact sound on timber subfloors, and Gypsol’s uniform density ensures even heat distribution for underfloor heating, improving comfort and efficiency.
Gypsol products come with data sheets, Environmental Product Declarations (EPDs), Declarations of Performance (DoPs), and ISO 14025 certifications. These provide verified performance, environmental impact data, and quality assurance.
Gypsol is supplied as a dry powder or pre-blended mix, combined with water, and poured onto a prepared subfloor. Its self-levelling properties reduce manual finishing, and standard pumping equipment works for larger installations.
Yes. Gypsol is verified by independent EPDs, supports lower carbon construction, and is suitable for projects targeting BREEAM or LEED certification.
LKAB Minerals provides online tools including case studies, embodied carbon calculators, and drying time estimators to support planning and decision-making.
