Original Earth Plaster information

The Product

Ready to use Original Earth Plaster has excellent cohesion provided by the presence of clay which acts as a natural binder. The inclusion of hemp makes it lighter and easier to use. Particle sizes: 8mm down.

Suitable Uses

The material is suitable as a scratch coat or as a textured finish coat on internal surfaces only.


Milled and screened whole hemp, screened silt and clay particles, high calcium lime, mineral aggregates and water supplied as a pre-formulated mix, which requires some agitation before use.


A solid lightweight fibre re-enforced material combines masonry and organic qualities. The material has good breathable, insulating, thermal mass, flexible and hygroscopic qualities.


  • 300Lt Crane-able Plastic Tubs.
  • 300Lt Bulk Bags


Store in a cool, dry location avoiding direct sunlight and frost.

Health & Safety

X Irritant.

  • Irritates the eyes and skin.
  • Contact with skin can cause sensitization.
  • In case of contact with eyes rinse with plenty of water and seek medical advice.
  • Wear suitable protective clothing and safety goggles.


Applied manually using steel plastering trowel. Spray gun can be used but superior finish achieved manually. Use only clean water without admixtures. Use an electric hand mixer and mix thoroughly before application. Can be applied at thicknesses of

8-10 mm.


Internally: Use steel float to finish.

Weather Conditions

Do not apply below 5°C. Maintain temperature above 50C in winter months.


Use only breathable paints.


Suitable for a wide range of substrates. Background to be stable and dust free. Highly absorbent surfaces should be dampened beforehand.

Regulating Atmosphere

Internally: Care most be taken to reduce humidity during drying phase. Provide adequate ventilation or heat and dehumidification.


General Guidelines

High humidity and non-absorbent substrates will increase setting time.

Plaster benefits from working and compression with steel float.

Lime is a caustic material with abrasive mineral components.

Take care to protect finished surface from lime staining and scratching by covering and/or cleaning as work progresses.

In renovation work mineral staining may sometimes occur. In this unlikely event consult a painting expert to achieve a breathable finish.

In renovation work, strip non-breathable renders from wall, rake out non breathable pointing, provide adequate drainage around building and ensure breathable floor is installed to avoid forced migration of rising damp in walls. Where adequate steps have been taken allow time for walls to gradually dry out.

Do not use in damp basements.