Yes, our Jade Quartz and Jade Ice kits do come with a guarantee card, signed by a Purist chemist, Covering a period of five to two years respectively. Puris guarantees against the ceramic coating cracking, bubbling, peeling or color change with loss of gloss not more than 25%. This guarantee is valid while the installation and maintenance are carried out in accordance with the manufacturer’s recommended procedures A61 ceramic detox shampoo & A68 Jade reboot detail spray. The original purchaser must also retain ownership of the vehicle for the guarantee to be valid.