Silicone Water Repellents Emulsion

Introduction

SiSiB® WR1370 is a highly efficient aqueous water dilutable emulsion of a reactive polydimethylsiloxane which can be used to provide water repellency to glass wool (fiber glass) or stone wool bound with phenolic resin.

SiSiB® WR1370 can be used for expanded minerals such as perlite or vermiculite, or expanded clay aggregates.

Features and Benefits

• SiSiB® WR1370 reduces viscosity significantly improving feed and dilution process.

• Compared to other reactive polydimethylsiloxane emulsions, WR1370 shows particularly high thermal stability when sprayed onto substances during the manufacture of thermal insulation materials.

Typical Physical Properties

Applications

• SiSiB® WR1370 is designed to be compatible with phenolic resin binders and tolerates without surplus of ammonia variation processing and formulating conditions.

• SiSiB® WR1370 is compatible and can be blended with most phenolic resins without negative reactions or precipitation.

• Compatibility tests are necessary for specific phenolic resins and additives before use.

Recommended Levels

• SiSiB® WR1370 can be diluted with water.

• According to the glass or stone fiber mass the addition ratio varies between 0.05% - 0.2% for stone wool and 0.1% - 0.3% (always depend on the weight of the dried final product) for glass wool.

• The usage of SiSiB® WR1370 also depends on the required water repellency of the final product given.
  

• SiSiB® WR1370 can be used to provide water repellency for expanded perlite or similar porous materials by spraying. The recommended dosage is 0.2% - 0.4 % for perlite, 0.1% - 0.2 % for expanded clay aggregates. To avoid an additional drying process, it can be sprayed onto the warm expanded material. But prolonged heating of the siliconized material must be avoided.