Isoperl-Dustex
Isoperl®-Dustex® is a grained, heat and sound insulating levelling bulk on a perlite-basis under screeds. Dust-borne with a special emulsion.
Processing
Isoperl®-Dustex® is poured directly onto the cleaned bare ceiling and is pulled level and horizontal with a straight edge or using gauges. When introducing more than 40 mm in thickness, a sealing of 20 % must be considered. Isoperl®-Dustex® fillings introduced in this way must also be mechanically sealed. This takes place by placing switch boards on the cover plates or on bitumen corrugated cardboard and sealing it with a hand beater or a light surface shaker.
Then the cement or mastic asphalt coat can be applied.
Material requirements
12 litres Isoperl®-Dustex® per m² of surface and per cm of thickness including 20 Vol.-% sealing.
Special processing information3
For wet coats, Isoperl®-Dustex® dry filler should be covered with bitumen corrugated cardboard, whereby attention should be paid that the individual tracks overlap by at least 8 cm.
For mastic asphalt screeds, cover plates such as fibre plates with a thickness of 8 - 10 mm are placed on the Isoperl®-Dustex® dry filler under consideration of a clean impact edge with joint displacement. The mastic asphalt is then introduced.
To make sure that the quality of the Isoperl®-Dustex® dry fillers are not adversely affected, switch boards should be used when sealing and the screed masses placed over laid planks.
Installation thickness of Isoperl®-Dustex® and recommended screed thicknesses.
| Isoperl®-Dustex® | Minimum thickness of mastic asphalt | Minimum thickness of cement coat |
|---|---|---|
| up to 30 mm | 30 mm | 35 mm |
| above 40 mm incl. seal | 25 - 30 mm | 40 - 45 mm |
Typical chemical analysis
| SiO2 | 74.84% |
|---|---|
| CaO | 1.69% |
| Al2O3 | 12.91% |
| MgO | 0.10% |
| TiO2 | 0.19% |
| Na2O | 3.71% |
| Fe2O3 | 1.32% |
| K2O | 4.52% |
Technical data
| building material | DIN 4102-A1, non-flammable |
|---|---|
| λ | 0.050 W/(m*K) |
| Granulation | 0-6 mm |
| Bulk weight approx | 85 kg/m³ |
| Strength | 0.01MN/m² (the planning thickness is the reduced installation thickness corresponding with the seal of 20 Vol.-%.) |
Delivery unit
100 litre plastic sacks
