A dry ready mix lime mortar for preparation and resurfacing, internal use, made a kinder way. Natural Mineral Filler is bound with natural hydraulic lime instead of gypsum or cement, a breathable mineral binder that has smoothed walls for centuries. A fine filler for levelling and preparing interior walls before you decorate.
Natural Mineral Filler is part of the Soil & Sky range, a small collection of honest mineral and plant-based finishes.
Unlike ordinary lime fillers, it bonds to low-absorption surfaces, so it fills straight over sound painted walls as well as bare plaster, plasterboard and cement renders, with no stripping back needed. Make sure existing paint is sound, remove any flaking first and test a small area.
Cement-free, solvent-free and negligible in VOC
Breathable and vapour-permeable, so your walls can breathe
Low shrinkage, high elasticity
Internal use, apply in coats up to 10 mm, conforms to BS EN 998-1
Mixing: add roughly 0.2 to 0.24 litres of clean water per kg to a smooth paste (whisk 4 to 5 minutes). Use within 4 hours.
Available in 1 kg, 3 kg, 5 kg, 10 kg.
Contains natural hydraulic lime. Danger: causes skin irritation and serious eye damage. Wear protective gloves and eye protection, and keep out of reach of children. Safety Data Sheet available on request.
Why us? We help people choose genuinely safer paints and finishes, without the greenwashing. We’re an independent shop, not a paint brand, and we only recommend products we truly believe in, or have tested and tried. For us, this is personal: better indoor air quality matters. Don't just take our word for it, read our Reviews. What is a natural paint?
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Pre-orderThis is on backorder, and we will ship to you as soon as it arrives! Any questions, get in contact. Thanks, Chris.
Technical data, safety data and application guidance for Natural Mineral Filler – Dry Ready Mix Lime Mortar & Resurfacing Plaster. All open in a new tab.