Silres BS 1042
SILRES® BS 1042 is an aqueous emulsion of reactive polydimethylsiloxane. It is used to impart water-repellency to glass wool mat or rock wool mat bound with phenolic resin.
It can be sprayed onto the warm material in order to avoid an additional drying process. Treatment of glass wool mat or rock wool mat with SILRES® BS 1042 after drying and hardening is not recommended. Excess SILRES® BS 1042 will cause a significant deterioration of the water repellent effect in perlite or similar materials.
Advantages
·Long-time water repellency
·Superior weatherability
·Can be used in combination with binders such as phenolic resin
Typical general characteristics
Appearance | White |
Active substance | Approximately 60 % |
Density (20 ℃) | Approximately 1000 kg/m³ |
pH(20 ℃) | 5 - 9 |
Ignition temperature (liquids, according to DIN 51794) | 420 ℃ |
Applications
> Rock wool
> Glass wool
> Perlite
> Vermiculite
It can either be spayed onto materials, or impregnate materials after dilution with water.
Recommended dosage
The quantity of SILRES® BS 1042 to be applied depends on the desired water repellency of the end product. It can be diluted with any quantity of water. The usual amount of SILRES® BS 1042 applied ranges between 0.2 and 2% based on the weight of material to be treated.