Coral Proteção Sol & Chuva White: Waterproof Paint that Reflects Heat
White reflects more sunlight than dark colors, reducing heat buildup on the facade. See the technical profile of Coral's waterproof exterior paint.
White reflects the most sunlight among the shades in the Coral Proteção Sol & Chuva line, a general physical principle of heat absorption by color. Combined with the product’s flexible rubberized film, the result tends to be a facade that accumulates less heat over the day, on top of the protection against infiltration, cracks, algae and mold.
Technical data
Classified under Brazil’s ABNT NBR 11702 standard (09/2019), type 4.5.16. Composition: modified acrylic resin, active and inert pigments, coalescents, thickeners, microbicides, other additives and water.
Solids by volume 41% to 47%; solids by weight 48% to 58%; viscosity 85 to 120 KU; specific gravity 1.200 to 1.350 g/cm³; VOC 1.5 to 24.0 g/L; flash point above 100°C.
Application
Coverage up to 85 m² per 18 L container (75 m² for 16 L, 17 m² for 3.6 L, 15 m² for 3.2 L), 3 coats as reference, 10% dilution, applied with a low-nap roller, spray gun, brush or trim brush. Touch-dry in 30 minutes, between coats in 4 hours, full cure in 24 hours.
Treating cracks before painting
A shallow hairline crack, up to 0.2 mm, just needs cleaning, brushing and a coat of wall primer before the finish. A structural crack, above that width, calls for a V-groove cut, then a fill of product mixed with sand (2-3 parts sand to 1 part product) over polyester mesh, sealed under at least 3 finish coats.
Surface preparation
Freshly textured surface with active water-repellent effect: 2 coats of wall primer first. New render: wait 30 days to cure, or apply a wall primer if waiting is not possible. Wall with mold: wash with water and bleach in equal parts, wait 6 hours, rinse and let dry completely.
Technical specification
| Field | Specification |
|---|---|
| Line | Coral Proteção Sol & Chuva Pintura Impermeabilizante |
| Color | White |
| Classification | ABNT NBR 11702 (09/2019), type 4.5.16 |
| VOC | 1.5 to 24.0 g/L |
| Coats | 3 |
| Coverage | Up to 85 m² per 18 L |
FAQ
Does White really reduce heat absorbed by the facade?
Light colors reflect more sunlight than dark colors, a general physical principle of heat absorption by color; there are no specific temperature measurements documented for this product.
Does White show dirt more easily on an exterior wall?
There is no documented data on this; visually, light colors tend to show dirt marks with more contrast than medium or dark tones.
How many coats does this color need?
3 coats as reference, the same standard across the whole line, regardless of color.
What is the coverage of an 18 L container?
Up to 85 m², the same reference across the line, since coverage is defined by the formulation, not the color.
Does White protect against mold and algae too?
Yes, the same film prevents and fights infiltration, cracks, algae and mold, in the same formulation.
How do I treat a structural crack before painting white?
Cut the crack into a V-groove, coat it with wall primer, then fill with product and sand (2-3 parts sand per part of product) over polyester mesh, closing with at least 3 finish coats.
Can I apply this on a rainy day?
Not recommended. Avoid rainy days, temperatures below 10°C or above 40°C, and relative humidity above 85%.
How long is the full cure time?
24 hours, with touch-dry in 30 minutes and 4 hours between coats.