Natural Clay Plasters
100% natural clay plaster.
Most building substrates (some require a suitable primer), including plasterboard and other conventional and eco-walling substrates.
Clayworks Clay plasters include blends of unfired clays mixed with minerals and pigments to provide healthy, breathable finishes for internal walls and ceilings.
As well as being 100% natural, the clay plasters are also high performance. The plaster regulates relative humidity, allowing buildings to breathe, and absorb toxins, odours and acoustics. They can also passively regulate temperature.
The product offers a seamless finish, ready mixed in a wide range of naturally pigmented colours and extraordinary textures, from luxurious silkiness to deeply coarse and rustic.
Features and benefits:
- 100% natural.
- Available in classic and custom finishes.
- Non-caustic.
- No requirement for painting.
- Passive regulator of humidity and temperature.
- Recyclable.
- Non-toxic, no volatile organic compounds (VOCs), no off-gassing.
- Helps maintain indoor moisture levels between 40–60%, the level recommended by Allergy UK to help prevent respiratory problems and illness.
- Helps mitigate the effects of indoor ozone and formaldehyde.
- Suitable for insulating and breathable render carrying boards, in rooms such as kitchens and bathrooms (but no areas in direct contact with water such as splashbacks).
Color | 88 standard colours Plus custom colours. |
Finish | Dependent on type specified |
Material | Clay |
Uniclass 2015 | |
CAWS | M20/220 Multicoat proprietary plaster M20/42 Proprietary plaster |
Colour | Available in 88 colours, insert requirements. |
Product Reference | Natural Clay Plasters - demi rustic Textured. Available in classic and custom finishes. Thickness when applied: 5-7 mm. Natural Clay Plasters - heavy texture rustic Available in classic and custom finishes. Natural Clay Plasters - rustic Textured. Available in classic and custom finishes. Thickness when applied: 7-15 mm. Natural Clay Plasters - smooth Smooth/ polished. Thickness when applied: 2 mm. Natural Clay Plasters - tonal Polished. Thickness when applied: 2 mm. |
Density | Smooth and tonal: 1600 kg/m³ ; demi-rustic and rustic: 1722 kg/m³. |
Impact resistance | Impact Diameter <15 mm to BS EN 520. |
ThermalConductivity | Smooth and tonal: 0.84 W/m·K; demi-rustic and rustic: 0.97 W/m·K. |
Moisture buffer value | Smooth and tonal: 1.28; demi-rustic and rustic: 1.4. |
Coverage | Per 25 kg bag: Smooth and tonal: 7-8 m²; demi-rustic: 2.7 m²; rustic: 1.25 m². |
Noise reduction coefficient (NRC) | 0.10. |
Country of material origin | United Kingdom Manufactured in Cornwall (UK) from abundant raw materials, they are amongst the most sustainable and healthy wall finishes available. |
Embodied carbon | Very low embodied and whole life carbon; a possible 2.4 kg carbon saving per m² compared with conventional wall build-ups Smooth and tonal finish: 0.1162 kg CO2 equivalent |
Recyclability | They are recyclable, compostable, re-useable, and contain no toxic ingredients or VOCs No waste materials during processing and no landfill material produced No water used in the manufacturing process |