THOMSIT TF 201 Sheet Membrane is a dimensionally stable separation course, always loose lay, to ensure the reliable installation of PVC and CV sheeting on difficult substrates. These include for example:

• Cement screeds up to 6 % CM residual moisture
• Calcium sulfate screeds (anhydrite) up to 2 % CM residual moisture

The membrane can also be used on substrates that are not ready for covering but load-bearing, e.g.:

• Old stonewood and magnesite screeds
• Floors contaminated with wax, grease, chemical residues, old paint or other coats
• Floors with residues of sulfite liquor and bitumen adhesives
  
  

Do not use on subfloors with high-low textures and on mineral oil contaminated floors.