Anti-fog additives and treatments, in the most basic sense, are chemicals that prevent the condensation of water in the form of small droplets on a surface resembling fog.
The appearance of fog seen on the surface of clear plastic packaging is the result of the condensation of water vapor on the surface of the material. In food packaging applications, the food that is being stored may have a high moisture content, so when the packaged item is stored in a cool environment, the temperature drops initiating condensation on the surface leading to fog.
This cannot only ruin the shelf appeal of the product by preventing the consumer from seeing the contents, but it could also affect the quality of the food.
There are two methods used to minimize the formation of fog on sheet and thermoformed parts – internal additives or external topical coatings. These treatments both work to minimize surface tension, resulting in a non-scattering film of water rather than single tiny droplets.
Our Anti Fog Film offers excellent anti-fog property as well as optical clarity, weather durability, etc. It has great performance on freezer and refrigerator glass door as well.