EXPIRATION: Product comes with a PRODUCTION DATE ("Pr") only. Expiration is one year from production date and is written in day/month/year format.CARPRO CQUARTZ Wheel and Trim Coat is the most advanced trim & wheel coating available. Made from quality high-grade organic silane, containing more than 50% pure silica! Unlike other trim products, CARPRO CQUARTZ Wheel and Trim Coat restores and protects for two years or longer by utilizing a unique nano composition which allows it to chemically bond to the pores of the trim! CARPRO CQUARTZ Wheel and Trim Coat is also HIGHLY resistant to extreme temperatures making it the perfect product for protecting wheels. Traditional products wash off in a matter of weeks or months but CARPRO CQUARTZ Wheel and Trim Coat has been tested all over the world and continues to protect for month after month! CARPRO CQUARTZ Wheel and Trim Coat was engineered specifically for coating plastics as well as rubber and metal. It can be used on almost any wheel finish including clear coated, chrome, aluminum, and plastic. In my experience CARPRO CQUARTZ Wheel and Trim Coat leads the entire market when it comes to exterior plastic trim protection and it darkens the trim without leaving any unwanted slick greasy residue. CARPRO CQUARTZ Wheel and Trim Coat is a remarkable semi permanent coating that shields automotive surfaces from the elements and restores their appearances. The clear protective layer formed by CARPRO CQUARTZ Wheel and Trim Coat is like a glass coating! It bonds strong, cleans up easily, and lasts up to one year. Now that's low-maintenance protection!