Does National Coatings use mildewcides or preservatives in their products to prevent mildew, algae, or other growth on the roof surface?
Yes. Acrylic coatings are water-based and susceptible to bacteria and fungal growth both in packaged storage and later as a dry installed coating. To ensure storage stability and film integrity in the field, NCC uses appropriate “salt and pepper” mildewcides and algaecides in our quality coatings. We also use Zinc Oxide in our products. Zinc Oxide resists mildew and algae growth and unlike other coating mildewcides, does not leach out of the dried coating film or get destroyed by continued exposure to UV rays. It also provides opaqueness to UV, whiteness and reflectivity to a well-formulated acrylic coating. Various leading biocides are also used in order to balance these additives with ZnO to achieve the best in-can and dry coating preservation possible. Using the test method ASTM G-21, our products receive a zero rating (no mildew growth).
Related Questions
- How long will my roof Shingles stay free of Algae, Mold, Mildew, moss, Fungi, lichen colonies and all that ugly streaks and stains once you have cleaned it ?
- Does National Coatings use mildewcides or preservatives in their products to prevent mildew, algae, or other growth on the roof surface?
- How to avoid Algae growth on façade coatings?
