BELSIL WO 3700 is a non-ionic emulsifier suitable for water in oil (W/O) and water in silicone (W/Si) formulations. BELSIL WO 3700 ensures good emulsion stability due to its special polymeric polydimethylsiloxane structure functionalized with polyether groups as well as alkyl groups. It appears as an almost colorless medium-viscose liquid with a calculated HLB value of approximately 3. BELSIL WO 3700 significantly improves the texture of W/O formulations, allowing for the formulation of not only high viscose creams, but also stable low-viscous lotions. BELSIL WO 3700 is well-suited for industrial applications requiring stable emulsions, such as coatings, sealants and other chemical formulations.