Water-Based Silicone Emulsions: Selection Guide & Formulations
Bottom Line Up Front: MESIL® Water-Based Silicone Emulsions are non-ionic, solvent-free active polydimethylsiloxane (PDMS) dispersions featuring ~50% non-volatile content. Stop guessing your formulations. Read the logic tree below to select the precise grade for architectural waterproof coatings or mineral wool insulation.
Compare Parameters Request TDSHow to Select the Right MESIL® Emulsion?
Your base material dictates the formulation. Use the following logical framework to select the exact emulsion grade for your engineering requirements:
- You are formulating for glass wool, rock wool, or expanded minerals (perlite).
- Select MESIL® BS 6150E.
Its ultra-low viscosity (~150 mPa·s) guarantees deep substrate penetration. It is highly water-dilutable and perfectly compatible with phenol resin binders without causing agglomeration. - You are manufacturing waterborne architectural paints, coatings, or plasters.
- Select MESIL® BS 6340E or BS 6042E.
These parallel grades are engineered for surface protection. They deliver a massive “water beading effect” while ensuring excellent water vapor permeability (breathability) and anti-blocking processing performance.
Engineering Specifications Matrix
A direct, cross-grade comparison of physical parameters to integrate into your production specifications.
| Test Parameters | BS 6150E (Insulation Grade) | BS 6340E / 6042E (Coatings Grade) |
|---|---|---|
| Appearance | Milky White Emulsion | Milky White Liquid |
| Emulsifier System | Non-ionic | Non-ionic |
| Non-Volatile Content | ~50 wt% | ~50 wt% |
| Viscosity (25°C) | ~150 mPa·s | Optimized for Paint Formulations |
| pH Value | ~5 | ~6.5 |
| Diluent | Water | Water |
Industrial Application & Dosing Guidelines
1. Mineral Wool & Insulation (BS 6150E)
Applied via spraying during or shortly before the binder application. Individual tests are required to define the necessary quantities based on the dried final product weight:
- Rock Wool: 0.05% to 0.2 wt%
- Glass Wool: 0.1% to 0.3 wt%
- Expanded Perlite: 0.2% to 0.4 wt%
- Expanded Clay: 0.1% to 0.2 wt%
2. Architectural Coatings (BS 6340E / 6042E)
Incorporated in undiluted form to waterborne masonry paints and plasters during or after their production. Provides strict environmental resistance without solvents.
- Formulation Guideline: Recommended dosage is 1.0% to 3.0 wt% on total formulation.
Packaging, Logistics & Shelf Life
Standardized parameters for procurement and warehousing.
- Storage Environment: Must be stored at or below 35°C in original, unopened containers to prevent demulsification.
- Lead Time: EXW preparation typically within 7-14 days upon order confirmation.