Thomsit SL 85 is a smoothing and self-levelling compound that can be applied 0.5 – 50 mm in one application. Can be used over clean Tongue and Groove (T&G) floorboards, access flooring and other difficult substrates. Can also be applied to some existing adhesive residues – if in doubt please contact Thomsit Technical Services. Especially suitable for pump installation. Resistant to roller castors >3mm. Suitable for use with underfloor heating. Thomsit SL 85 is not recommended as a wearing surface. For interior use only.