Paint Application

Earles Mineral Paint

Application Information

Earles Masonry Paint is composed of a blend of natural minerals without the addition of polymers, plastics or harmful inorganic chemicals. It is supplied as a fine powder which is mixed with water to form an easily applied coating. Breathable and weather resistant Earles Masonry Paint cures to a super matt finish.

Consumption

Consumption will depend on the porosity/texture of the surface and the required finishing application method. The following table is illustrative of the application of one coat of Earles Masonry Paint using 1KG, 5KG and 10KG of powder on a smooth rendered surface.

Coverage

Coverage given for unmixed dry powder per coat.

Surfaceper KGper 10KG tub
Smooth render4 - 6m240 - 60m2
Pebbledash2 - 3.5m220 - 35m2
Concrete blocks3 - 5.5m230 - 55m2
Wall and fibre boards5 - 7m250 - 70m2
Suitable brickwork4 - 6m240 - 60m2

Preparation

Ensure the surface is free of all weak and loose deposits and contamination such as dust, dirt, moss, lichen, grease, oil, sealer and anything that could affect the coating application.

Note: For application onto existing paint, where the previous paint has failed leaving areas of bare masonry, additional preparation is required. Apply two coats of Earles Masonry Paint onto the bare masonry areas before painting the entire surface with a further two coats of the paint. This will ensure the most even finish.

Primer

Earles Masonry Paint Surface Primer is essential when the paint is to be applied over any polymer based coatings, glazed bricks, old unpainted renders and old pebble dash or other loose and friable surfaces.

Mixing the Paint

Mix the paint by volume using equal quantities of water and powder to mix the paint, for example one cup of water to one cup of powder.

  • Gradually add the paint powder to the clean water whilst thoroughly mixing with a low speed powered mixing paddle
  • Avoid adding additional water to powder
  • Continue mixing ensuring all powder had been thoroughly incorporated
  • Let the mix stand for 2 minutes and then remix for 30 seconds
  • Once mixed, Earles Masonry Paint should be used within 2 hours
  • During use some settlement may occur. Stir if required. remembering that the paint will naturally thicken over time
  • Do not add more water to the mix as this may affect the curing process

Paint Application

A minimum of 2 coats of Earles Mineral Paint is recommended.

If Earles Masonry Paint Surface Primer has not been necessary, wet the surface down just prior to paint application. This is vital to stop the substrate drawing moisture out of the paint.

Apply the first coat of paint evenly to the surface using a brush, an HVLP or compressor based spray system. Do not use an airless spray system. Spray application will give the smoothest finish and the most consistent thickness of paint. If brush application is preferred it is essential to ensure that an equal thickness of paint is applied evenly over the whole surface.

Due to the lack of any polymer content in Earles Masonry Paint, airless spray systems are not recommended.

Allow a minimum of 6-8 hours between coats under normal circumstances. A longer curing time may be necessary in cold and damp conditions.

Apply a second coat of the paint and allow it to fully cure.

Further coats of paint may be necessary in circumstances where the background is of a dark colour.

Additional information for hot weather and application onto porous surfaces such as lime render and cobb

Prepare the Earles Masonry Paint mix ready for use. Thoroughly saturate the surface with water and immediately commence painting. If rapid drying is apparent after 1 hour, mist the coated surface with water, this will aid the curing process. Repeat this process for the second coat of paint.

Curing Process

Earles Masonry Paint is unique, it cures by hydration and during this process it is normal for the paint to appear chalky or slightly transparent. The paint will oxidise and initial curing will be complete within 7 days. After this initial cure the paint will continue to strengthen over time, resulting in a super matt, dust free finish.

Note: If applying onto mixed substrates or existing failed polymer paint there will be varying moisture content already present within the walls and some initial colour variation may be visible. As paint hydrates and cures, the moisture will be drawn out of the wall and the colour will even out.

Cleaning

Simply clean all equipment with fresh water immediately after use.

Northern Paints & Coatings
Unit 3b
Berwick Road Industrial Estate
Wooler, Northumberland, NE71 6AH
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