The Evercoat Metal Glaze Polyester Finishing Putty FIB 416 is a 30 oz. standard putty designed for cavity sealing in automotive applications. Made by Evercoat in the United States, this product includes a hardener and comes in a 2-pack. It is suitable for sealing cavities and is recommended for use with metal surfaces. Additionally, it is important to note that this product may contain chemicals that pose a significant risk to reproductive health, making it essential to take necessary precautions when handling and using this product.