You can paint a lot of different surfaces with Bauwerk Colour Lime Paints, some can be painted with very minimal preparation, some require a few more steps before you can apply our paint.
BAUWERK Limewash paints are perfect for all masonry surfaces, like render, bricks, mud brick, strawbale that’s where it works best as it is absorbed into the wall leaving a breathable surface that is protected by the natural properties of the paint. However it’s also ok if your walls are already painted or are made of gyprock / drywall / plasterboard or plaster.
If your wall is already painted or are made of gyprock / drywall / plasterboard or plaster.
It is very important that your walls are correctly primed, as Limewash and Prep Coat will not mask what is on your wall, for example, inconsistent materials like the join lines of where the plasterboards meets, or any fillers or patches that are on the wall – to ensure that no ghosting of these inconsistencies comes through to your final finish.
Step 1. First apply 2 coats of a good quality water based drywall / plasterboard / gyprock primer, to ensure an even absorbency across the wall surface.
Step 2. Apply 1 coat of our BAUWERK Prep Coat by roller, especially formulated to make limewashing easier and more durable on previously painted walls.
Step 3. Apply Limewash by brush 2-3 coats, however you like it best. We find 2 coats is usually enough.
Do I need BAUWERK Prep Coat?
We have especially developed our Prep Coat as a bridge coat between standard paint and primers to make limewash more durable, and easy to apply.
BAUWERK Prep Coat is not a primer.
It is important to understand that BAUWERK Limewash and Prep Coat have no capacity to mask what is on your wall, it allows all the history and the materials of the wall to come through.
Natural walls such as unpainted render, brick, stone, masonry, mud brick, etc. Do not require any undercoat or primer, limewash can be applied directly to the wall.
Dampen walls sufficiently with water, prior to painting the first coat to ensure the paint is spread out thinly. First coat can be applied as soon as surface is ready – no curing time needed.
Previously painted render, brick, stone, masonry, mud brick. Carry out any surface repair and remove all dust and loose particles. No undercoat required. Sand well if previous paint has any gloss level. Previously painted masonry internal walls with an inconsistent wall finish or gloss finish – you can apply 1 coat of BAUWERK Prep Coat to create a more uniform finish.
Some Tips about wether your painted wall needs a primer:
1 Check absorbency of the surface
Most important is that the surface has some ability to absorb the paint as lime wash paints always look for a surface it can penetrate into.
If you are not sure if your surface has some absorbency you can do a quick and easy test with clean water: if the water is absorbed, so will be the paint. If the water is rejected we have to create an absorbent surface first.
2 Check if the surface has absorbency differences
Most surfaces will naturally have some differences in absorbency. Most are ok, but some you may not like to see through the finished paint work:
- the outlines of plasterboard (gyprock)panels
- spot repairs done with fillers or in a prominent part of the wall
- filled up channels for electrical cables or plumbing pipes
If you do not want to see such repairs it is necessary to equalise the absorbency across the entire surface, otherwise they might ''ghost'' through after painting. Follow our Application guidelines to fix such surfaces.
Surfaces such as newly rendered walls, natural stone, mud bricks, rammed earth, even canvas, can be painted directly. You can add clean water to the surface before the first application in cases of high absorbency. Never thin the paint for that purpose!