Fills (loose or tied) serve as a levelling layer on the one hand, and technical cable/pipe installations can be laid in the bulk level on the other.
The Estroperl and Staubex dry fills, which are easy to process, are made on the basis of perlite, an insulating material that has been tried and tested for decades, i.e. dust-bound, highly temperature-resistant and insensitive to moisture, rotting or vermin. In addition, Estroperl is non-water-absorbent thanks to a special coating - making it ideal wherever water-bearing pipes run.
