Limewash Prep Coat

For interior use only

The Bauwerk Limewash Prep Coat is a fast to apply, matte white preparation paint specially formulated to create the ideal base coat for Bauwerk Limewash Paint. Use on previously painted walls, where a fresh new surface is desired.

    • Free from preservatives

    • Water-based, low-odour

    • Free from fogging-active substances

    • Emission-minimised and solvent-free

    • Good opacity

    • Easy to apply by roller, spray or brush

    • Diffusion-capable (breathable paint)

    • Ultra-low VOC content of under 1 gram per litre

    • Matt white finish

    • Can also be used as a top coat for ceilings

  • Bauwerk Limewash Prep Coat is an ulta-low VOC white water based paint that has three main functions:

    1. It provides a completely uniform matt white background colour

    2. It has the right amount of absorbency to allow the limewash paint to anchor itself into and

    3. It allows for easy application with enough time to brush out the paint the way you prefer

    Prep Coat is not a primer. It is important to understand that Bauwerk Limewash Paint and Prep Coat have no capacity to mask what is on your wall (i.e. blemishes and marks), it allows all the history and the materials of the wall to come through.

    It is also not a sealer to block out stains or equalise absorbency differences.

  • Pure limewash paints require a moderately absorbing surface. However, many interior spaces are already decorated with a conventional paint that does not allow the limewash to penetrate into.

    Bauwerk Limewash Prep Coat builds a bridge between a previously painted or non-absorbing interior surface, and creates a matt white uniform background and allows the Limewash paint to be painted easily and with just two coats on top.

    Prep Coat is only used for some interior wall applications, you will need Prep Coat when you want to paint:

    • surfaces that have previously been painted with other paints

    • non-absorbent materials, such as plywood

    • dry wall panels, including gypsum plaster board (must be prepared first with a water-based primer)

  • 1 litre covers approximately 6m2 per coat.

    • concrete

    • wallpaper

    • over existing coats of paint

    • gypsum plaster

    • gypsum plasterboard

    • gypsum wallboard

    Substrates must be dry as well as free from contamination and adhesion-reducing substances.

    Drywall or repaired surfaces must be treated or prepared adequately with a water-based primer to create a surface of equal absorbency to prevent “ghosting”.

  • Bauwerk Limewash Prep Coat can be applied by brush, roller or spray gun, usually just one coat is enough.

    The paint is ready to use and only needs to be stirred thoroughly.

    Do not apply at temperatures below 5°C.

    Start at the window and brush away from the light.

    To avoid visible lines, or a picture framing affect that may appear once limewashed, always paint wet on wet, even when cutting in to keep the finish consistent and even.

    If painting the ceiling then paint the ceiling first, followed by the walls.

    To avoid overlapping marks, blend vertical strokes with horizontal strokes without loading any additional paint.

  • At 20 °C and above with 65 % relative humidity the surface is dry to the touch after 3 - 4 hours.

    Application of limewash paint can commence the next day.

    These times are extended at lower temperatures and higher humidity.

    If you use the Prep-Coat as a finish (on the ceiling for instance) we recommend to apply two coats. The second coat can be applied over the first coat after 4 - 6 hours.

  • Clean tools with water after use.

    Pro Tip: Rollers do not need to be washed out if you are planning to use them again the next day or even after a couple of days. Use cling wrap or similar and completely wrap the roller or paint brush tightly around it. As long as there is no air reaching the tool it will not dry out.

  • Bauwerk containers and their lids can be recycled.

    Only recycle containers that are completely empty.

    Liquid left-over materials should be left open to allow the water content to fully evaporate. The dried left-over materials can be disposed of as construction waste or rubble or as municipal or domestic waste.

  • Characteristics in accordance with DIN EN 13 300: Wet scrub resistance:

    • Class 2, corresponds to scrub- resistant acc. to DIN 53 778.

    Contrast ratio:

    • Opacity - class 1, with a yield of 6 m2/l or 150 ml/m2.

    Paint sheen:

    • Matte

    Binder:

    • Acrylic resin dispersion

    Density:

    • Approx. 1.50 g/cm3

    Colour:

    • White

    Storage:

    • Cool, dry, protected from frost; keep container closed!

    EU limit value for VOC content:

    • This product (cat. A/a): 30 g/l (2010)

    • This product contains < 1 g/l VOC