Fiberglass (FRP) outdoor patio furniture do not warp, rust, crack, corrode, or shrink. They are waterproof too. Fiberglass is non-porous which helps resist algae growth and makes it almost impossible to accumulate dirt. Over the years the fiberglass outdoor patio products do not change their appearance. With these, you will notice that it is not very hard to maintain your fiberglass outdoor patio garden furniture in good condition. Not high maintenance but regular easy maintenance. The best thing to do though, is to keep your outdoor patio furniture pieces clean because nothing will really last if you do not care enough.