NATCEM 35 Approved for use at ZERO Degrees
Date published:
June 28, 2024
Working in freezing conditions can be challenging for Civil Engineering projects, as many cement-based products are ineffective below 5°C. Natural Cement is pleased to announce that our NATCEM 35 is now approved for use in Public Water Supplies at temperatures as low as 0°C!

Based in Barnsley, South Yorkshire, Natural Cement manufactures eco-friendly mortars, grouts, and shotcretes using a Natural Cement binder in use for over 200 years. Our products are ideal for Concrete Repairs, Waterproofing, Grouting, Screeding, and Sprayed Concrete across Construction, Water & Utilities, Rail, Civil Engineering, Tunnelling, and Sea Defence & Coastal markets.
NATCEM 35 is an eco-friendly, fast-setting mortar with rapid strength gain, ideal for potable water applications in cold weather. It joins NATCEM AC, WATERSTOP, and NATCEM D in being approved under Regulation 31 of the Water Supply Regulations for use from 0°C, reducing winter project delays.
Construction products used from the water source to delivery in a consumer building must be approved under Regulation 31 of The Water Supply Regulations (Regulation 33 in Scotland and Ireland).
Natural Cement supply Environmentally Friendly mortars, grouts and shotcrete products which are DWI.reg 31 approved. For more information on the range or to organise a product training session please call our technical team on 01226 381133 or email enquiries@naturalcement.co.uk.
More from the water sector
Find out how the UK water sector is informing, innovating, and influencing change
Future Water Awards 2026 – Nominations now open
Celebrate excellence in the UK water sector by nominating outstanding individuals and organisations for the 2026 Future Water Awards, recognising emerging talent, people, and above-and-beyond contributions.
Case Study: Welsh Water scales up Flygt Concertor pump deployment
Dŵr Cymru Welsh Water is expanding its deployment of Flygt Concertor intelligent pumping systems after a successful trial that achieved 40% energy savings and reduced blockages. This initiative supports their broader goals of pollution reduction and carbon neutrality by 2040.
Dŵr Cymru Welsh Water scales up Flygt Concertor pump deployment, achieving significant energy savings and improved wastewater management.
CEO Blog: The year the system was examined – and the year it must start working differently
As the UK water sector enters 2026, it faces critical challenges in governance, capability, and public trust. Future Water Association aims to facilitate practical changes to improve system performance and accountability.
Explore the Future Water Association's insights on the UK's water sector challenges and the need for practical changes in governance and accountability.
