PermaRock SiliconeUltra K Finish represent the state-of-the-art in external through-colour renders.
Based on a hybrid binder system of organically crosslinked nano-quartz particles and silicone emulsion, SiliconeUltra K Finish offer a class-leading self-cleansing effect with enhanced resistance to dirt pick-up, providing cleaner surfaces for longer than conventional silicone, acrylic or mineral renders and can also help minimise costs associated with dealing with surface discolouration over the life of the building.
They are lightweight, water repellent, have excellent water vapour permeability and can resist aggressive air pollutants. Photo-catalytic particles help actively break down dirt particles which can be washed from the surface under normal weathering. These low environmental impact renders also contain a preservative against coating deterioration due to algae and fungus.
Available in an extensive range of colours from the PermaRock A1 Colour Range, PermaRock SiliconeUltra K Finish is available with a K (stippled) texture, in 1.5, 2.0 and 3.0 mm grain sizes. Darker colours (Lightness Factor <20) are unsuitable for use with EPS systems.
Where utilised on Mineral Fibre insulation systems or PermaRock / PermaRend render systems, these darker shades may also require an additional coat of PermaRock SiliconeUltra Façade Coating.
PermaRock Façade A1 Colour Range
Our Façade A1 colour range provides 500 colour shades with the highest colour brilliance and more permanent colour stability. Formulated entirely with inorganic pigments, the colour range is designed to complement PermaRock’s SiliconeUltra through-coloured renders which employ unique binder combinations.
Learn about the key benefits of the A1 range
Method of Application
Supplied pre-tinted to the required colour, PermaRock SiliconeUltra K Finish is ready to use and are applied onto the prepared surface by stainless steel trowel or using spray equipment. The applied finish is then rubbed-up and textured with a plastic float to the grain size.
Application / Drying Conditions
Temperature (material, substrate and ambient) during application and drying : +5 ºC to + 30 ºC. Application should not take place in direct sunlight, during strong wind, fog, high relative humidity or when imminent rain or frost is expected. The material dries by water evaporation and film formation.
Drying time: at 20 ºC and 65% RR: Surface dry after approx. 24 hours. Cured, recoatable and ready for stress after 2 - 3 days.
Packaging
PermaRock K & R Primer is supplied, pre-tinted to the required colour, in 25 kg plastic pails.
PermaRock SiliconeUltra K Finish is supplied pre-tinted to the chosen colour in 20 kg plastic pails.