... more than 3.8m3/m2*s Fiberglass flooring tissue roll without deformation C-F-0.5 Fiberglass Flooring TissueC-F ... substrate for flexible sheet flooring and wallpaper, using it as base material made of soft plastic flooring look flat, non-shrinkage ... thickness, stable dimension2. Smooth surface, less wool yarn3. High temperature without deformation, non-warping, non-rotten4. Easy to compnsite with PVC ...