Novel Natural Additives For Surface Coatings

Many additives used in the coatings industry are based on synthetic petroleum-derived raw materials. As concerns grow regarding the sustainability, naturally, and biodegradability of coatings, formulators are beginning to consider replacing non-renewable formula ingredients with alternate additives based on natural and sustainable chemistries. This article reviews several new developments in natural additive powders and emulsions that offer a more favorable environmental profile while also demonstrating excellent performance properties. Wax additives are an essential part of any ink and coating formulator’s toolkit. Micronized wax powders, dispersions and emulsions can improve the durability of all types of surface coatings, imparting slip, abrasion and scratch resistance, anti-blocking, and rub resistance. Most commercial wax additives are based on synthetic materials including polyethylene and polypropylene. In the past few years, there has been a growing trend to develop formulated systems that contain higher percentages of materials that are biobased, renewable, and/or biodegradable.