Paints & Coatings

Paints & Coating Industry

Foaming is an undesirable side effect of certain industrial processes which reduces processing and storage capacity, decreases operating efficiencies, and creates problems with product quality and performance.
To effectively control foaming, it is necessary to use a Defoamer to chemically break the films of liquid which surround the bubbles of gas released in processing, or to use an Anti-Foaming Agent to prevent the foam films from forming in the first place.
Polydimethylsiloxane or PDMS is a Silicone-based foam control additive and is a cost-effective and efficient option for preventing and controlling foam. Due to low surface tension.
Silicones spread evenly and rapidly over a foam film, facilitating penetration and collapse of the foam. They also possess the advantage of being non-contaminating, since they are inert and are typically effective at much lower concentrations than non-silicone defoamers.

Hydrophilic additives, such as thickeners and surfactants, used in exterior and interior paints are vulnerable to fungal and algal attack which cause defacement of the painted surfaces.
Zinc Pyrithione is a dual-action biocide that is an excellent fungicide and algaecide and avoid the need for blending multiple fungicide and algaecide products.
Further, Zinc Pyrithione is not a skin sensitiser like other fungicides such as DCOIT and so does not require labelling in the finished paint product.
Finally, Zinc Pyrithione decomposes extremely slowly under ultraviolet rays, and so provides years of protection under direct sunlight exposure.