Product comparison
Anhydrite vs Cemfloor — Which Liquid Screed?
The single most common question we're asked. Here's the plain-English answer.
Anhydrite (calcium-sulphate) and Cemfloor (cement-based) are both flowing screeds. They pour the same way, look nearly identical, and have similar coverage rates.
The difference that matters is chemistry — and that changes which finishes and which rooms are safe.
Head-to-head
| Property | Anhydrite / Cemfloor |
|---|---|
| Wet-room safe | No / Yes |
| Needs laitance sanding before tile | Yes / No |
| Cover over UFH pipe | 35mm / 30mm |
| Compatible with epoxy resin | No / Yes |
| Cost per m² | Slightly cheaper / Slightly more |
| Best for | Dry residential / Wet + commercial + tile |
If tile, wet-rooms, kitchens, basements or resin are anywhere in the pour zone — Cemfloor. Otherwise anhydrite is fine.
— Exeter Liquid Screeders
Frequently asked
Not sure which to spec?
Send the drawings and finishes schedule. We'll give you an honest recommendation.