Raw material control - Unadulterated old newspaper

The newspapers are first put through the shredder. Small parts, e.g. paper clips, are removed by an electromagnet.

This is where the Finnish technology really comes into its own, as it is well-known that the size of a cellulose fibre and its capacity to retain air influences its later subsidence behaviour and caloric conductivity.

The special treatment in the grinding mill produces cellulose fibres similar to cotton wadding. For fire protection purposes and to protect wood constructions from attack by rot or vermin, so-called borates are added. Thermofloc is composed of approx. 90% newspaper and 10% harmless, non-vaporizing boracic salts.

The finished product is packed in PE bags weighing 14 kg each. Now, Thermofloc Blow-in Insulation is ready to be applied in ceilings, pitched roof areas and walls as an ecologically safer insulation material