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Exterior Facade Coating

Lotus effect exterior masonry coating.

A technically advanced, two-coat coloured facade coating product which insulates mineral building materials by reducing water absorption. 10 year manufacturer’s guarantee and a lifetime expectancy of 25 years.

Key Features

  • For use on mineral substrates that require a coloured exterior wall coating.
  • Manufactured in Germany using the very latest, superior technology
  • It insulates mineral building materials by reducing water absorption
  • It has undergone UKAS accredited testing
  • Verified by the Energy Saving Trust
  • Choice of colours available
  • Super-hydrophobic
  • Highly breathable
  • Creates a self-cleaning surface like the Lotus Effect
  • Prevents salt efflorescence
  • Discourages discoloration
  • Prevents growth of moss, algae and lichens.
  • It is a matt finish, dirt-resistant and silicone resin based technology
  • Excellent covering abilities
  • Very high titanium content for maximum product performance
  • Minimises frost damage
  • Proven performance


Interested in our products? Simply call 0161 763 7074 to purchase.

rosetteProduct Guarantee

ProPERLA Exterior Facade Coating comes with a 10 year manufacturer’s guarantee but has been proven to perform for 25 years. When tested under accelerated weathering conditions in accordance with ETAG 034:2012 (which correlates with 25 years in service weathering) there was no deterioration in performance or aesthetic appearance.

Interested in this product? Simply call 0161 763 7074 to purchase.

Stay dry and warm

When applied, ProPERLA Exterior Facade Coating creates a super hydrophobic surface commonly referred to as the ‘lotus effect‘ due to it’s similarity to the water repelling properties of the lotus leaf.  When it rains, coated mineral surfaces will repel the water, causing it to form beads (because the water is more attracted to itself than the surface) and run off without being absorbed. Independent tests have shown that it reduces water absorption by 93.4% and meets the British standard for water vapour resistance BS EN ISO 7783:2011

UKAS accredited tests have demonstrated that by reducing water absorption of the walls, ProPERLA Exterior Facade Coating lead to thermal performance benefits. It has been proven to meet ETAG 004;2011.

Testing in a hygrothermal chamber revealed that a wall coated in ProPERLA Exterior Facade Coating and subjected to repeated heat-rain conditions in accordance with ETAG 034:2012, resulted in reduced heat loss when compared with the uncoated (control) wall. The uncoated wall showed on average an increase of 6⁰C of heat loss in comparison to the walls coated with ProPERLA Exterior Facade Coating.

ProPERLA Masonry Crème improves thermal efficiency and contributes to lower energy consumption and lower energy bills, by keeping walls dry. Damp walls act as ‘thermal bridges’ – enabling heat to transfer from the inside out twice as quickly as it would if the walls remained dry.



ProPERLA Facade Coating does not restrict the ability of the building to breathe. Water vapour permeability testing was conducted in accordance with BS EN ISO 7783:2011 and it demonstrated that the coating had little effect on the water vapour diffusion of the substrate.

Application of ProPERLA Exterior Facade Coating protects the walls and cavities by keeping them dry whilst allowing air and moisture to escape. It maintains the important capability of the building envelope to breathe. Unlike some stone and brick sealing products, it does not block the pores of the masonry by coating them with a thin film.


Prevent and protect


ProPERLA Exterior Facade Coating not only improves the appearance of the building, it helps to maintain and protect it in the long term too;

  • It mimics the lotus leaf by creating a super hydrophobic, self cleaning surface. Dirt particles are unable to obtain a hold on ProPERLA treated surfaces and will simply flow off with rainfall.
  • The growth of moss, algae and lichens is deterred.
  • Helps to prevent discolouration.
  • Slows the ageing or breakdown of the surface of the building by helping to protect it from the damaging effects of the weather including wind driven rain, frost, high air humidity and sea salt penetrated air.
  • Performance is unaffected by UV rays.
  • Colour stable

The property will be weather protected and colour stable for many years.

Proven Performance


ProPERLA Exterior Facade Coating has undergone independent tests by UKAS certified body Lucideon and has been proven to meet the following standards;

  • ETAG 034:2012 – 25 year hygrothermal performance
  • ETAG 004;2011 – external thermal insulation composite
  • BS EN ISO 7783 – 2011 – water vapour diffusion
  • BS EN ISO 12572 – water vapour resistance



This product is available in a range of pastel shades – for example, Water Lily, Devon Stone, Pebble, Polar White and Cotswold Cream. If you would like to receive a small sample of these colours, please complete the enquiry form on our contact page or email our branch at info@properla.co.uk


The images above are indicative of the range of colours available and should be used as a guide only. Due to the variability of computer screens we cannot guarantee an exact colour match between the actual colour and the colour as displayed on a screen or when printed. For a more accurate representation of the colour we strongly recommend requesting a coated sample.


ProPERLA Exterior Facade Coating can be applied by paint brush, roller or airless spray. It has excellent coverage and normally requires only two coats.

The substrate simply requires high pressure cleaning and treatment with ProPERLA Cleaner prior to application.

For bare, absorbent, unpainted surfaces it is recommended that ProPERLA Wall Primer is used prior to coating for maximum protection.

Full instructions on how to apply ProPERLA Exterior Facade Coating can be found in the Datasheet, available to download above.

For more information on this product, simply call 0161 763 7074.

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