Exterior emulsions are water-based paints that offers protection for exterior masonry surfaces from the elements like sunlight, rainfall and algae/fungal attack.
In general terms any season other than rainy season should suit exterior painting. However, painting is not recommended when ambient temperatures are above 35⁰C and below 10⁰C. It is also equally important that the substrate ie; the wall, is not too hot or too cold or wet. Relative Humidity should be between 40% – 60% for best results and avoid painting when relative humidity is greater than 85% and also when humidity is very low.
Identify the reason for getting your wall painted. For medium term protection and shaded exteriors, you can choose our Exterior Emulsion Gold Series.
For long-term, we have Premium XT Exterior emulsion with a rich matt finish and for walls that need that extra shine and that extra protection from moisture and algae we have Acrylic Laminate.
Another unique product for the exteriors that combine protection from dirt and water is the Indigo Dirtproof and Waterproof exterior laminate and it’s the perfect choice for worry- free walls.
The steps recommended below must be followed for the best performance of any exterior emulsion.
1. The surface to be painted must be cleaned thoroughly using a wire brush and clean water. All traces of loose paint, algae, dust, grime must be removed. Areas where there is a high potential for algae growth must be cleaned using a bio-wash solution before painting.
2. Cracks, if any, on the surface to be painted must be closed.
3. Areas with constant dampness must be identified and corrected prior to painting. The source of the leak must be fixed permanently.
4. If the substrate shows signs of chalkiness, a primer with anti-efflorescence properties like Indigo WT Sealer Primer must be used.
Spray application is convenient if large areas have to be painted and there are not too many colour variants. Spray application gets the job done faster but requires a skilled applicator and there will be 35-45% wastage of material as spray mist. Care must be taken to mask existing furniture and nearby items when using spray application, especially during re-painting of interiors and this can be a tedious process.
Brush / Roller application takes more time but wastage of paint is much less compared to spray application. This method of application is generally preferred over spray for repainting interiors or when the number of shades involved are high.
All our exterior emulsions are water resistant and can withstand rainfall and splashes of water. In fact, Acrylic Laminate and Dirtproof and Waterproof emulsion repels water and designed to offer water beading effect.
Painting should be done when one starts to notice deterioration in the existing paint film, loss of paint film integrity and algae / fungal growth.
Repainting frequency generally depends on the type of paint used previously and also the conditions the wall has been exposed to. Generally exterior emulsions can last from 3 years to 7 years depending on the product used and the system of application, for eg: a product like Dirtproof and waterproof exterior laminate offers long term protection of 5-7 years.
Indigo Exterior emulsions are available in wide variety of colours to enhance the appearance of your house while also making sure that the walls remain protected from sunlight and rainfall. They also function to keep the surface free from algae and fungus.
Technically there is nothing wrong with painting an interior emulsion over an exterior emulsion, however it is not practical and usually not recommended. All exterior coatings come designed with features that help outlast the effects of sunlight & rainfall and offers all the decorative features that the exterior of
a house needs. This cannot be substituted by interior emulsions as these are formulated for a different purpose.
Yes. The main role of an exterior primer is to improve the adhesion between the substrate and the topcoat. It also improves the coverage of the topcoat. An exterior primer also plays an important role by improving the hiding especially when changing the colour of the exterior of your house completely during repainting and makes the process of colour transition a lot smoother and easier.