Anhydrite / calcium-sulphate
Gyvlon Anhydrite Screed in Devon & the South West
Gyvlon is the market-leading anhydrite screed in the UK. We install it across the South West on the right jobs.
Gyvlon is Tarmac's anhydrite (calcium-sulphate) flowing screed. It's fast to pour, self-levelling, and excellent with underfloor heating in dry residential builds.
We install it where it makes sense — and steer clients to Cemfloor where wet-area risk means anhydrite isn't the right chemistry.
Gyvlon vs Cemfloor — a plain-English take
Gyvlon is good for
- Dry residential builds
- UFH under engineered wood
- Fastest possible pour
- Lowest cost per m²
Cemfloor is better for
- Any wet-room in the pour zone
- Tile finishes without sanding
- Basements and commercial kitchens
- Renovation over damp slabs
Frequently asked
Wanting Gyvlon quoted?
Send the drawings. We'll price Gyvlon and Cemfloor side by side so you can decide.