Using KYNAR PVDF coating, Talco features its unique two- or three-layer coating as per customer's request to protect the aluminum surface. The first layer - is a primer on the surface after being chemically treated. The second layer - which is the base color. Third (upper) - It is a transparent coating to protect the color. Where it is recommended to use the third layer in general, and for metal finishes in particular. While it can be applied to all paint surfaces. This is according to AAMA 2605 specifications, with a warranty of up to 25 years.