Thermosphere 25Kg Flexible Self-Levelling Compound for Underfloor Heating is a free-flowing, rapid-setting, and fibre-reinforced material, enhancing durability and flexibility, making it ideal for both electric and wet underfloor heating installations.

This product is suitable for multiple substrates like plywood, chipboard, concrete, and existing tiles, allowing for up to 50mm application in one pour. It sets rapidly, enabling tile installation or foot traffic in three hours, with other flooring ready within 24 hours at 20°C.

With a coverage of 5.25m² at 3mm thickness, it is an efficient and cost-effective choice for interior use at temperatures above 5°C. Its grey finish ensures a professional, seamless result, meeting EN 13813 Class CT C30 F7 standards for performance and reliability.