The PTEF polymers provide unmatched protection against UV rays, seal the surface to repel stains and deliver a deep, long lasting gloss. Application is simple, whether by hand or with a buffer, apply, let dry to a haze and wipe off. Use once per year to keep new and restored boats looking their best. Ideal for all fiberglass, metal, glass or painted surfaces. Note: if surface is oxidized or hazy, use One Step Heavy Duty Cleaner Wax with PTEF.