Exterior paint coating on the climatic conditions of the requirements analysis

Time:2011-08-03Hits:1745

HC coating Network News: Compared with the painter's comfort level, sunny weather conditions on the painting project is more important. Coatings in mild weather conditions can play a better performance. In fact, the harsh conditions of the coating painting project will be greatly reduced.
Not too cold
For most coatings, the coating temperature is the lowest in 10 ℃, here refers to the surface of the substrate temperature and air temperature. Whether it is latex or oil-based paint, at low temperatures will cause the paint brush and roller becomes very difficult, impeding the normal drying process of coating, wet paint, and so easily absorbed in the air of dust, insects and pollen . For latex products in the next 36 hours the temperature is higher than the minimum recommended when painting is a more sensible approach, so you can form a suitable film coating, and coating quality is not compromised.
Not too hot
Because the latex paint film by way of limitation, hot weather will make paint drying too fast, and to affect the durability. Avoid painting under the following conditions, in particular, the coexistence of a variety of situations when: air or substrate surface temperature exceeds 32 degrees Celsius; the case of direct sunlight, especially in the dark paint when painting; windy weather; humidity low; painting in the age-old, a very porous substrate, such as old, weathered concrete surface.