Limewash is one of the oldest decorative finishes still used today. It’s simple, mineral based and closely connected to the way traditional buildings were designed to function. For owners of older homes, those restoring period properties, or anyone interested in natural breathable materials, limewash is often one of the first finishes explored.
We’ll take a look at the traditional definition of limewash, and how that translates to products available on the market today. Whilst true limewash is still available, there are modern alternatives which have been refined to preserve the authenticity of limewash whilst eliminating some of its drawbacks.
What Is Limewash? The Traditional Definition
In its traditional form, limewash is simply lime and water processed to form a paint. Most of us in the UK will have seen the ruins of lime kilns in the countryside. These are where the base for limewash was manufactured historically - usually in close proximity to sources of lime.
The stone was crushed, and placed in the kiln to be burned at high temperatures for 3 days. The processed lime (quicklime) was mixed with water to create lime putty. You might hear this referred to as slaked lime or calcium hydroxide. The lime putty was then diluted further with water to create a thin milky paint. This was limewash in its most traditional form.
Unlike modern paints, limewash does not form a plastic film on the surface. Instead, it soaks into the substrate and bonds chemically as it cures. This is one of the reasons it is so compatible with traditional building materials.
What Does Limewash Look Like?
Limewash has a distinctive appearance that is difficult to replicate with modern plastic paints.
It typically produces:
- A soft, chalky, ultra matt finish.
- Slight tonal variation rather than a perfectly flat colour.
- A surface that reflects light in a subtle, natural way.
Over time, it tends to wear gently rather than peeling. Many people value this natural ageing as part of the character of traditional buildings.
Rather than looking applied, limewash often looks like part of the building itself.
Pros & Cons of Limewash paint
Limewash is still used today because its properties align closely with how traditional buildings are designed to behave.
Pros of Limewash Include:-
- Exceptional breathability - Limewash allows moisture vapour to pass freely through the surface, helping walls dry naturally rather than trapping moisture.
- Moisture regulation - Lime finishes are hygroscopic, meaning they absorb and release moisture depending on conditions. This can support more stable indoor humidity.
- Natural mould resistance - Lime is strongly alkaline, which discourages mould and microbial growth.
- Aesthetic suitability for period buildings - The finish is visually appropriate for cottages, listed buildings and heritage architecture.
Cons of Limewash Include:-
- Low durability - Limewash is not scrub resistant and can wear away through touch and friction. That means it’s not ideal for high traffic areas.
- Hard to repair - Limewash does not lend itself to patch repair. If part of a wall becomes damaged or uneven, the best way to restore the decorative surface is usually to repaint the entire surface.
- Substrate compatibility - Limewash has limited compatibility with modern building materials. It works best on porous materials like lime plaster, stone, and brick. It can have poor adhesion to modern gypsum plasters or previously painted surfaces.
- Application time - Limewash needs a little more time and care than modern paints. The surface needs proper preparation and needs to be damp during application. Limewash requires several thin coats, and the entire wall must be painted in a single session to avoid visible joins.
Modern Lime Based Paint Alternatives
Because of the limitations of traditional, many people now choose modern lime based paints that capture a similar mineral look and key characteristics such as exceptional breathability, while offering improved durability and usability.
AURO 326 Chalk Paint
Auro 326 creates an ultra matt, mineral style finish with a soft appearance and the character associated with lime surfaces. It remains highly breathable, making it suitable for older and historic interiors. Compared to limewash, it is simpler to use and offers greater resistance to everyday wear.
Suitable for: Interior walls
AURO 344 Lime Paint
Auro 344 is a genuine lime based paint with exceptional breathability (SD value < 0.05 m) and much stronger opacity than traditional limewash. It offers a more predictable finish and better coverage, making it ideal for those who want authentic lime performance without the inconsistency of pure limewash.
Suitable for: Interior and exterior walls and ceilings
Graphenstone GCS - High Performance with Heritage Colour Range
Graphenstone GCS is a modern mineral paint available in a curated palette of heritage tones as well as the standard Graphenstone colour range. Suitable for both interior and exterior use, it bonds well to mineral substrates such as plaster, render, brick, and gypsum based surfaces. Produces a durable matt finish designed for long term performance.
Suitable for: Interior and exterior walls
Graphenstone Ambient Pro - Refined White and Off-White Finishes
Graphenstone Ambient Pro is a n ultra matt mineral paint formulated with added photocatalytic properties, which help reduce airborne pollutants and support healthier indoor air. It creates a soft, refined finish while also offering strong durability.
Suitable for: Interior walls and ceilings
For Damp or Mould Prone Areas
In spaces where moisture and condensation are common, such as bathrooms and kitchens, Auro 327 and Auro 303 are designed specifically for challenging conditions. Their high alkalinity provides natural resistance to mould growth. Both dry to a classic matt finish and are well suited to areas where humidity is an ongoing concern.
Also worth considering for a traditional mineral look:-
Lime Earth Paint is a pigmented lime based paint made using traditional techniques. It offers the breathable, mineral character associated with limewash, but with improved coverage, broader colour options, and easier handling. Whole wall application is still recommended for best visual consistency, and absorbent surfaces such as clay or lime plaster benefit from light dampening before painting.
It is particularly well suited to listed properties and interiors where a softer, more natural aesthetic is desired.
Suitable for: Interior and exterior walls
Limewash - Authentic & Effective Finish
Limewash is a material deeply connected to how buildings were constructed for centuries, and it still has a place in many homes today.
Modern lime paints exist not to replace limewash, but to offer alternatives that suit modern expectations of durability and ease of use.
The most important principle remains the same: choose materials that work with your building, not against it. Need help? Contact us and one of our friendly team of paint experts will be happy to help!
