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What Is an Emulsion? Buy Industrial Paraffin Emulsion and Wax Emulsion
An emulsion is a stable mixture of two immiscible liquids, such as water and oil, in which one is dispersed as very fine droplets in the other and is kept stable by a substance called an emulsifier. Milk, mayonnaise and skin creams are everyday examples of emulsions. In industry, one of the most important emulsions is paraffin emulsion (wax emulsion): very fine particles of paraffin or slack wax dispersed in water and used to waterproof MDF, particleboard, paper and textiles. Mehr Gostar supplies paraffin emulsion for industrial use.
Types of emulsion
- Oil-in-water (O/W): oil droplets in water, such as milk, most lotions and industrial paraffin emulsions.
- Water-in-oil (W/O): water droplets in oil, such as butter and rich creams.
- By emulsifier type: anionic, cationic and non-ionic.
Read more in our articles on food emulsions and natural emulsifiers.
Paraffin emulsion and slack wax emulsion
| Property | Typical range | Note |
|---|---|---|
| Solid content | About 40–60% | The higher it is, the lower the dosage |
| Particle size | About 1–5 microns | Better dispersion and penetration with fine particles |
| Appearance | Milky white liquid | Phase separation indicates instability |
| Emulsifier type | Anionic, cationic or non-ionic | Must be compatible with the resin and process |
Paraffin emulsion is made from refined paraffin, and slack wax emulsion from slack wax, which is more economical. The exact specifications of each shipment are given in its certificate of analysis (COA).
Uses of paraffin emulsion
- MDF, particleboard and OSB: reduces water absorption and thickness swelling; typical dosage is about 0.5–1.5% paraffin (as solids) relative to the dry weight of the wood.
- Paper and board: water and moisture resistance.
- Textiles and leather: waterproofing and softening.
- Fruit and citrus coatings.
- Inks, polishes and coatings.
- Concrete and construction: curing and waterproofing.
Read more technical details in our article what is paraffin emulsion?
Storage
- Store at about 5–35 °C; freezing ruins the emulsion permanently.
- Keep the container closed and away from direct sunlight.
- Stir gently before use.
Price and ordering
The price of paraffin emulsion depends on the type of paraffin (refined or slack wax), solid content, emulsifier type, order volume and packaging. For advice on choosing the right type and today’s price, contact Mehr Gostar’s sales team.
Frequently asked questions
What is an emulsion?
An emulsion is a stable mixture of two immiscible liquids such as water and oil, made with the help of an emulsifier; examples are milk, mayonnaise, creams and industrial paraffin emulsions.
What is paraffin emulsion?
Paraffin emulsion is a stable mixture of very fine particles of paraffin or slack wax in water, used to waterproof MDF, particleboard, paper and textiles.
What is the dosage of paraffin emulsion in MDF?
Usually about 0.5–1.5% paraffin (as solids) relative to the dry weight of the wood, adjusted on the production line.
How should paraffin emulsion be stored?
At about 5–35 °C, protected from frost and direct sunlight, in a closed container.
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