Our patented German engineered window tint from Huper Optik is far more durable than conventional dyed and metallized window films. The ceramic component is not reactive to salt, water, heat, and other environmental conditions. In this test, performed at the films conception, you can see the window tint mainatain its performance through this rigorous set of tests. No wonder it is the premeir window film for marine applications. Huper Optik Ceramic window films are 100% dye and metal free.