Aquabuddy Pool Cover 500 Micron 8.5x4.2m Swimming Pool Solar Blanket Blue SilverLDPE. It's the key to having a great swimming pool all year around. The acronym actually stands for Low Density Polyethylene. A thermoplastic that can withstand temperatures of up to 80? continuously. It's also what our Solar Pool Cover is made of to face up to the heat of the typical Australian summer. Incorporating an innovative split blue and silver isothermal design, the solar pool cover is able to let heat pass through via the translucent blue