Kay-Cel EPS 70 Polystyrene Flooring Insulation Panels are delivered to site wrapped in polythene. The panels should be stored in the original wrapping, under cover and protected from direct sunlight. Panels should be kept above ground level and out of contact with solvents and materials containing volatile organic compounds such as coal tar, pitch or timber recently treated with creosote. This Panel is available in the following thicknesses: 25mm 50mm 75mm 100mm Kay-Cel Plus is made from lightweight expanded polystyrene material. This gives a higher thermal performance than normal. It is also robust enough to be used above concrete. Contact us today to find out more.