Leisure Time Fast Gloss is a spa and hot tub polish and cleaner; Fast Gloss protects spa surfaces from sunlight, chemicals and temperature extremes; Fast Gloss is easy to apply and buffs without streaking or smearing; Fast Gloss lasts up to six months, but should be reapplied every three months for best results; This product is compatible with chlorine, bromine, ozone and biguanide sanitizers and all spa finishes