Bauwerk Limewash paint is ideal for raw masonry interiors where it can be absorbed into the walls leaving a breathable surface that is protected by the natural properties of the paint. With no undercoat or sealer required, the process is quick and simple.

Surface Requirements:

Step 1 Brush down the wall.
Step 2 Dampen walls with clean water using a brush or light mist spray to ensure easy application of limewash.

Paint Application:

Step 3 Apply 2 coats of Bauwerk Limewash using a Bauwerk natural fibre brush. Dip the brush into the bucket and flick off excess paint. The brush can hold a lot of paint, but should not be dripping.
Using loose, free strokes, stretch the paint as far as possible in all directions. Maintain a wer edge at all times to prevent colour overlays. Do not leave drips or runs. Continue to stir the paint regularly while painting.
Allow 1-2 hours between coats. When wet, the colour will appear darker and transparent. As the paint dries the colour will lighten and become opague.
Find here specifications and certificates for our paint or watch our guide on how to paint a render masonry wall here or at the bottom of the page

Tip:
With large expanses, it helps to work to a natural break in the wall such as a mortar joint or V joint or with the assistance of another person.
During construction or renovation, it is advisable to schedule Bauwerk painting as the final trade to prevent damage to the final finish caused by other trades or building equipment.

Number of Coats:
Two coats usually suffice.

Weather:
Paint only with a minimum of three clear days without rain or protect the surface from rain after painting. The ideal temperature for applying Bauwerk Limewash is 8°C-30°C (46°F-86°F)
Do not paint if the surface and/or air temperature falls below 5°C (41°F) during application or curing.

If you have a rough surface, a repaired render or a rendered finish you are not satisfied with you can consider to apply a thin coat render with a smaller aggregate size of no more than 0.6 to 1mm on top of the existing render.

Thin coat render is a pre-blended cementitious render with the addition of additives to increase adhesion and improved workability. This will be faster, more economical and a better looking surface than any other method.


This is what you need to consider:

Ensure you finished all repairs before applying on coat of thin coat render. Apply to a thickness of around 2 mm, allow some time to cure and use a sponge float to finish. If you like a surface that is smooth to the touch, but still slightly textured use a stainless stell trowel and at the right time push all grains that are proud of the surface back level to the surface.

Allow to cure and protect the surface from all sorts of contamination, such as grease, fat, oil, wax, but also acrylic gap fillers or paint when painting door surrounds or architraves.

Brush off dust and all loose particles prior to applying two coats of limewash paint. There is no need for any primers or Prep Coat.

1 liter of limewash will be enough to cover approximately 7 - 10 m2. We recommend two coats of limewash paint for such a surface.

External cement render can easily be painted with limewash paint

Surface Requirements:
External cement rendered surfaces should be free from any dirt and dust, finished to the standard that does not require additional coatings (ie crack-free). It also should be free from absorption limiting substances, such as acrylic gap sealers, overspray with other paints etc.

Render Application:

External renders are best applied in two coats to avoid ghosting of the block/brick joints. If the wall is free standing allow for a water proof capping with an overhang.

Paint Application:

You can paint directly on to the cement rendered surface, even if it is still damp.

Should the surface be dry and too absorbent to easily stretch out the paint then dampen the surface sufficiently. Do not thin the paint.
Paint wet in wet (always catch the edges before they have dried).
For large areas ensure adequate scaffolding and manpower.

Number of Coats:

Two coats usually suffice.

Weather:

Paint only with a minimum of three clear days without rain or protect the surface from rain after painting. Do not paint if the wall and air temperature is at 5 deg C or below.