Granite Protector Films have been developed to protect calcium-based stone and metal from all etching and staining. The protected surface is warranted to be acid-, alkaline-, water-, and oil-proof for a period of 10 years from the date of installation for any interior residential use, and 5 years in commercial or hospitality-associated environments.  Due to weather conditions, Granite Protector cannot be warranted outside. The lifespan of Granite Protector Film in direct sunlight ranges from 1 to 3 years.  The warranty covers the product against yellowing or blistering on the protected surface. The warranty does not include scratching or peeling.