LKAB Minerals launches low-carbon and laitance-free floor screed to meet new environmental and performance standards

Press releases November 20, 2025

Gypsol ZL cuts installation costs by 66%, lowers embodied carbon by 88% and supports compliance with schemes including the Future Homes Standard and BREEAM

LKAB Minerals has launched Gypsol Zero Laitance (ZL), a new low-carbon liquid floor screed that eliminates sanding, accelerates project delivery and helps developers meet the rising bar for sustainable construction. Suitable for both commercial and residential developments, it provides a durable, low-carbon foundation for a wide range of flooring applications.

As regulations tighten, schemes including the Future Homes Standard (FHS), BREEAM (Building Research Establishment Environmental Assessment Method) and LEED (Leadership in Energy and Environmental Design) are placing greater emphasis on the embodied carbon and energy performance of building materials – floors included.

Traditional screeds are typically cement-based, contributing heavily to the sector’s carbon footprint through energy-intensive cement production. Globally, cement manufacturing accounts for around 8% of CO₂ emissions, underlining the urgent need for low-carbon alternatives.

Using a natural anhydrite binder instead of cement, Gypsol ZL reduces embodied carbon by 88% compared with conventional screeds. Its zero-laitance formula eliminates the sanding stage entirely, saving labour and speeding up delivery. With a thinner pour depth and faster drying profile, it also minimises material use and site disruption – cutting total installation costs by up to 66%.

an image to show zero laitance floor screed

Ben Bland, Commercial Manager for Andricite, Gypsol Binder & Screeds at LKAB Minerals, said: “Sustainability and performance are becoming the foundations of how we build – and in our case, that’s quite literal. As government policy, design standards and even public expectations continue to evolve, the industry will keep feeling that pressure to deliver greener, faster and more resilient projects. With Gypsol ZL, we’re showing how change can start from the ground up – removing unnecessary stages, cutting embodied carbon and helping contractors deliver stronger outcomes.”

Niche Energy Solutions is an energy, underfloor heating and screeding sub-contractor that have used LKAB Minerals’ products for many years.

Darren Meredith, Sales Manager at Niche Energy Solutions said: “LKAB’s range of anhydrite options has a quality, consistency and robustness that is second to none. In an industry where neglect of the correct post installation guidelines can be rife, the missing piece in the puzzle was a zero-laitance option. I’ve been really pleased to bring this to live environments in the early stages and am delighted with the results.”

With Gypsol ZL, LKAB Minerals continues to set the benchmark for durable, reliable, and performance-driven flooring solutions in the UK and Ireland.