Solar blankets (Polyethylene) have one main enemy – chlorine. Making the blanket laminate thicker helps, simply because there is more of it, hence the popularity of 500 micron pool covers. Manufacturers also add anti-oxidants to slow the chlorine damage down, but these themselves are degraded by the sun’s ultraviolet rays, so UV inhibitors are also added to protect the anti-oxidants! As we all know, Australia has particularly high UV levels, so this is an important consideration.
The bubble fabric we use is made in Australia with maximum anti-oxidants and UV inhibitors, and is specifically shaped so that it has no weak spots. After 30 years of experience in Australian conditions, it has well and truly stood the test of time. It also has a large surface area for improved heat gain.