How to apply Limewash

Preserving the rich history of the architectural heritage is a noble endeavour. Historic restoration plays a pivotal role in maintaining the structural and aesthetic integrity of heritage buildings. A key component in this process is the use of lime putty mortar, a traditional and reliable material that ensures the authenticity and longevity of these cherished structures.

Limewash is a traditional painting technique that has recently become popular in modern design due to its rustic charm and eco-friendly properties. Composed of slaked lime and natural pigments, limewash adds a distinct textured finish whilst also offering breathability and durability. This article will explain the process of applying limewash, allowing you to add warmth and character to your space. 

Materials Needed:

  • Limewash - We recommend using a high-quality limewash in your colour of choice. This can be ready-made or made by mixing slaked lime and pigments. 
  • Paint Brushes - Natural bristle brushes or specific brushes designed for limewash application are advised. 
  • Plastic Sheets/ Drop Cloths - Protect the surrounding areas including floors from splatters and drips with a protective cover. 
  • Painter’s Tape - Mask off areas you don’t want to be coated with limewash using painter’s tape.
  • Mixing Containing - If you opt to make your own limewash, you will need a container for mixing. 
  • Water - This may be necessary to dilute the limewash. 

How to Apply Limewash: 

1. Prepare the Surface

Before starting to apply the limewash, ensure the surface is clean and free of dirt, dust and loose paint. We recommend stripping away old paint or varnish on the surface to achieve the best results. Cracks or imperfections should also be repaired and allowed to completely dry. 

2. Protect the Surrounding Areas

We advise covering the floors and areas close by that you don’t want to be painted with plastic sheets or drop cloths. Painter’s tape can also be used to mask off edges, corners, and fixtures that shouldn’t come into contact with the limewash. 

3. Limewash Preparation

If you have chosen to use ready-made limewash, this step can be skipped. However, if you are mixing your own, follow these guidelines: 

Gradually add water to mature lime putty to produce your desired consistency. We usually recommend a 1:3 ratio of lime to water, but adjust to your requirements. To tint the limewash add natural pigments and mix until they are fully incorporated to produce a consistent colour.This will ensure you achieve your desired texture and finish. 

4. Limewash Application 

Dip your paintbrush into the limewash, gently shake or tap it on the container edge to remove excess liquid. Apply your limewash in small sections, working from the top down. The initial coat should be thin enough to allow the surface texture to show through. The first coat will usually take a couple hours to dry, a second coat can then be applied in the same manner. If you are looking for a more opaque finish additional coats should be painted. 

5. Allow Limewash to Dry and Cure

Limewash will dry quickly, but it will require extra time to fully cure. The surface should be left to air dry for several days to a week, depending on temperature and humidity. We recommend avoiding touching or disturbing the painted surface. 

6. Optional Seal 

If you want to add extra protection to your lime wash finish, a clear breathable sealer can be applied. This layer helps resist staining and also makes the surface easier to clean. 

Limewash application is a rewarding DIY project that can instantly transform your interior or exterior spaces. Its unique texture combined with its classic appearance adds character and warmth, making it a great choice for a range of design styles. By following these steps and taking your time, you can learn the art of limewash application and enjoy the timeless beauty it can bring.