Food can interior coating

Organosols are more expensive to produce, polyesters are unstable when they come into contact with acids, vinyl coatings do not adhere well to metals and break down under high temperatures, and oleoresins have limited corrosion resistance and take a long time to dry [1,2].

The downside to epoxy-based resins is that they are made with bisphenol-A. In the past 10 years studies on bisphenol-A have started to find links between them and toxic effects for humans.

The main issue that has been discovered is that they possibly disrupt the human endocrine system [1,4]. The endocrine system controls hormone production in the body and if it is altered it cause harm to normal bodily function. Some older epoxy-based resins have been found to cause abnormally high levels of leaching of BPA into food products. More recent epoxy resins have corrected this issue and studies on new coatings show that only around 0. Research is currently focused on developing ways to produce alternative resins in cost and environmentally sustainable ways [2].

Even though epoxy-based resins are the most well rounded internal coatings in terms of functionality they are not necessarily the best.

Frequently asked questions about valPure non-BPA technologies. Sherwin-Williams offers a comprehensive range of products for food cans and ends. Safety by Design is Sherwin-Williams stringent pharmaceutical-like development protocol for screening materials to assure longevity and sustainability of new packaging coating technologies.

Sherwin-Williams is dedicated to ensuring regulatory compliance of our coatings, whether it's a newly developed coating or an existing product validation. Food Can Coatings Sherwin-Williams offers a comprehensive range of products for food cans. Used to protect both the interior and exterior of rigid packaging containers, these can coatings are seen in various applications.

Traditionally, these coatings have contained BPA, which is an industrial chemical found in certain plastics and resins. As consumer awareness has increased, the market has shifted away from using BPA in its can coating resin formulations. This is due to concern that BPA can seep into food or beverages, causing possible adverse health effects. Copolyester can coating resins in particular offer a functional and safe alternative to traditional formulations.

As the main component in these coatings, copolyesters provide good sterilization resistance, adequate rigidity and protection.