Liquid screed is a modern flowing floor material used to create smooth, level surfaces with less manual work than traditional sand and cement screed. It is widely used across UK construction projects, particularly in large spaces and in floors with underfloor heating.
Core ingredients
Liquid screed is normally made from four main components:
- A binding material, usually cement or calcium sulphate
• Fine aggregates such as graded sand
• Water to create a fluid, pumpable consistency
• Performance additives that control strength, drying and flow
The exact blend depends on the product and the requirements of the project.
Cement-based liquid screed
Cement-based liquid screed uses cement as the primary binder combined with fine aggregates and specialist additives. It is often selected because it dries relatively quickly and handles moisture better than some other systems. For this reason it is frequently used in kitchens, bathrooms and commercial buildings where moisture exposure is possible.
Anhydrite liquid screed
Anhydrite screed replaces cement with calcium sulphate. This type of screed flows extremely well and is known for producing very flat floors over large areas. It also works particularly well with underfloor heating systems because the liquid mix surrounds pipes fully, helping distribute heat evenly throughout the floor.
However, anhydrite screeds require correct preparation before certain floor coverings are installed.
Why the mix matters
The materials used influence drying time, structural strength, moisture resistance and compatibility with floor finishes. Selecting the wrong screed type can lead to delays, adhesion problems or moisture issues, especially in refurbishment projects.
Why choose LMA Floor Screeding London?
With more than 15 years of experience, LMA Floor Screeding London installs liquid screed, traditional screed and levelling systems across London with reliable results and clear advice.