Step 1 - Masking up
Every area that is not to be treated with DuraKote textured coating, needs to be carefully protected, by using specialist masking paper cut to the correct size for all windows, walls, and doors. Floor areas are covered with heavy duty dust sheets. All adjacent plant life or motor vehicles are protected from the coating by polythene sheeting, which is cut to suit the particular need. are protected from the spraying.
Step 2 - Power Washing
Every surface holds years of grime deposits from diesel engines to which dust sticks. Some surfaces have problems with algae growth and other contaminants (such as years of soot, grime, algae, mould and any loosely adherent paint). It is vital to remove all contaminants by using power wash machines which contain very powerful fungicides and cleaners. This allows us to see any hidden brickwork, render, masonry or plaster which may be damaged. Once again your surrounding areas are protected through this process.
Step 3 - Wall Restoration and Repair
All the damaged wall surfaces that were first inspected, such as cracked render, blown render or pebbledash and broken brickwork is removed. All cracks are cut out in a V-shape. These are then filled with the correct polymer modified cement so that the cracks never re-appear. Any unpainted brickwork is then bag-rubbed with a PVA motor mix, filling in the small air holes and softening the brick line. The utmost care is taken so that a uniform finish is achieved once the restoration work has been completed. All architectural features are carefully maintained throughout this process - before the coating is applied.
Step 4 - Sealer Wall Coating
A base coating is applied, which consists of Dura-Dri – a powerful water repellent. This is mixed with some DuraKote textured coating until a runny solution is achieved. This mixture is then applied to all wall surfaces using a masonry brush so that it reaches all nooks and crannies. The Dura-Dri penetrates into the surface and completely stops the absorbtion of moisture, preventing dampness in the walls. Most importantly, because of its chemical action, it also allows the walls to breathe. Therefore any dampness already present in the wall surface can breathe out naturally as water vapour.
Step 5 - The Application of DuraKote Textured Wall Coating
It is imperative that Durakote textured coating be applied by specialist heavy duty spray equiptment. We have found over the years the best equipment is the Graco pumps which are imported from the United States. Smaller, less powerful equipment does not penetrate the existing wall surface sufficiently. Our textured coating is sprayed onto the prepared surfaces at a thickness of 600 microns – the equivalent of 20 coats of conventional exterior paint, concealing any repair work. DuraKote is normally touch dry between 12-18 hours after application, and should heavy rain occur before this drying time, it has no effect whatsoever on the DuraKote textured coating. After the wall coating becomes touch dry, there is a ‘curing’ process, which lasts for approximately 6 weeks. This allows the solvent to vaporise from the textured coating, and at this stage, the true colour originally chosen, is perfectly achieved.
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Whats in the Coating?
Long Oil Alkyd Resin
A proven resin used in various types of paint systems, particularly architectural, with its initial quick-dry properties. Even when applied in thick coat layers, the results are impeccable. The flexibility of this substance prevents cracking and the substance is also resilient to the common paint problem known as ‘yellowing’, where the colour becomes murky and the wall coating loses it’s true colour. Alkyd Resin has been used in high build spray applied coatings for over 40 years providing a long term resistant and flexible media with excellent adhesion qualities on a wide range of substrates.
Polybutene Resin
Provides excellent flexibility and water resistance.
Titanium Dioxide Titanium Dioxide is the natural oxide of titanium (TiOz) and gives excellent hiding power and opacity to the coating, providing long term colour retention and long term durability. This is achieved by the absorption of UV light energy, and its ability to scatter visible light and imparting whiteness when used in the wall coating.
Zinc Oxide
Assists in hiding properties and combating mould growth.
Mica
Incorporated into the coating as a lubricant and offers excellent cracking resistance. The durable particles provide good bridging capabilities and fire retardence.
Perlite
Perlite is amorphous volcanic glass and provides the textured effect of the wall coating, excellent weather resistance and insulation against the elements, excellent fire retardency qualities. When heated it has an unusual property of expanding, giving it great aggregated insulation properties, ideal for your home.
Granicalcium Particles Provides packing and bridging capabilities, excellent chemical and weather resistance, extremely durable and fire retardant.
A.B.Fibre
Provides a filibrated pattern within the coating offering three dimensional strength. Excellent chemical resistance and anti-sag properties.
Solvent
White Spirit to BS 245.
Biocide/Fungicide Agents
To provide the coating with long term protection against fungal and algal growth, a high ratio of a Biocide and Fungicide are incorporated into the formula of the textured wall coating. The wall coating fungicide is a mercury-free antimicrobial agent. The fine particle dispersion is formulated to prevent elements in certain paint formulations reacting with it, which would cause discolouring. It has a high viscosity which also prevents discolouring of the coating, as well as eliminating weather effects such as peeling, flaking, corroding, fading and also various fungal and agae species that would normally grow over time.