What are Silicone Emulsions – The Ultimate Guide

Emulsions is a popular silicone product. In this guide, we are going to explore some fundamental aspects about silicone emulsions.

From chemical structure, composition, classification to applications. You will find everything about silicon emulsions right here.

Let’s dive right in:

What is Silicone Emulsion?

Silicone emulsion is special product, which consists of silicone oil and water. The water composition help create a range of compositions and properties that you can use for different applications.

Silicone Emulsion Structure
Silicone Emulsion Structure

Benefits of Silicone Emulsion

· Ease of Application and Clean

Silicone emulsion is easy to apply and clean.

· Enhanced Product Performance.

When used in applications such as agriculture, they help to improve the effectiveness of pesticides and herbicides by enhancing their spreading and wetting properties.

· Thermal Stability

It can be used in high temperatures and low temperatures without losing its properties or characteristics.

· Environmental Friendly

Silicone emulsion is considered environmentally friendly and does not cause any harm to the environment.

· Nontoxic and Safe

They are non-toxic and safe for use.

Function of Silicone Emulsion

  • Lubrication– Helps to reduce friction between surfaces thus providing a smooth and effective lubrication.
  • Water repellency – Silicone emulsion helps to create a barrier on the surface that makes it to be water-repellent.
  • Release agent – it acts as a release agent preventing materials from sticking to molds and surfaces.
  • Surface condition – Silicone emulsion acts as a surface condition by giving it a smooth and glossy surface
  • Protective coating – They help to form a barrier on the surface protecting it from damage such as UV radiation, and moisture among others.
  • Aesthetic enhancement – Silicone emulsions are used to enhance the appearance of products by giving them a smooth and glossy finish.
  • Softening agent – it acts as a softening agent in textile processing mostly used in fabrics.

Chemical Structure of Silicone Emulsion

It contains key components such as silicone components mainly a type of silicone oil comprising PDMS. Emulsifying agents are used to help stabilize the emulsion and reduce the surface tension between the silicone oil and water

Which mostly includes the cationic, anionic, and nonionic surfaces.

Silicone Emulsion Structure

Forming Silicone Emulsion
Forming Silicone Emulsion

The silicone emulsion structure combines its properties that create stable and effective formulation.

It also has structural formations such as oil droplets, surfactant layer, and emulsion type that can either be oil in water or water in oil.

Classification of silicone emulsion

When it comes to choosing different silicone emulsions, you may consider any of these options:

1. Based on Type of Dispersion

On the type of dispersion, it can either be oil in water which means that silicone oil droplets are dispersed in the water phase, or water in oil emulsion meaning that water droplets are dispersed in the continuous silicone oil phase.

2. Based on the Type of Silicone

Based on the type of silicone it can be categorized mainly as polydimethylysiloxane(PDM)emulsion, amino-functional silicone, and epoxy-function silicone phenyl-modified silicones.

3. Based on Type of Emulsifier

Emulsifier is categorized into nonionic emulsion, cationic emulsion, and anionic emulsion.

4. Based on Application

Silicone emulsion is classified based on the different applications it would be used for i.e. automotive emulsion among others.

Characteristics of Silicone Emulsion

  • Environmental friendly – Silicone emulsion is designed with low VOC and is biodegradable thus making it to be environmentally friendly
  • Water repellent – It acts as water repellent, and moisture protection preventing any damage.
  • It is safe – Silicone emulsion is generally safe for use, example it can be used in personal care and food-related applications without causing any harm
  • Thermal stability – It can remain stable under high temperatures and still work effectively under low temperatures.
  • Film formation – Forms a uniform coating and uniform appearance on products.
  • Ease application – It is easy to use or apply.
  • Stability– Silicone emulsion is stable over time with a resistance phase separation and it is durable and maintains its properties and performance.
  • Versatility – It can be used in different applications and is easily adjusted according to one’s needs and performance.

How to Make Silicone Emulsion

Step 1: Choose Silicone Emulsion Ingredients

Ensure you collect all the required materials needed for the process such as silicone oil, water, emulsifiers, stabilizers, and additives.

Step 2: Water Phase Preparation

Prepare the water phase. Measure the required or needed amount of water and mix it into the mixing vessel. You can also adjust the pH of the water phase if only necessary.

Step 3: Oil Phase Preparation

Now prepare the oil phase. Measure the required amount of silicone oil and in case you are using oil-soluble emulsifiers or any additives ensure they mix until they are combined.

Step 4: Silicone Emulsification Process

Now, we are at the emulsification process. In this process slowly add the silicone oil phase to the water phase while continuously mixing until the emulsion appears uniform. You should ensure that there is not visible oil droplets in the solution.

Check for any adjustments needed like checking the pH of the emulsion and adding any final additives.

Uses of Silicone Emulsion

Silicone Oil Emulsion
Silicone Oil Emulsion

Silicone emulsions are used in different applications as discussed below.

  • Personal care and cosmetic – It is used in hair care products, skincare products, makeup, and sun care products among others.
  • Textile industry – You can use it as fabric softener besides having water repelling properties.
  • Automotive – The automotive industry uses silicone emulsion to polish and wax surface
  • Construction – It is used in the construction industry to help improve water repellency and durability of concrete surfaces.
  • Paper and packaging – Paper and packaging use silicone emulsion as a release agent and coating to help improve water repellency and durability of paper products.
  • Medical and pharmaceutical – Used in the medical and pharmaceutical industry as a lubricant.
  • Food industry – Help reduce friction and lessen sticking in many applications.


What are the common thickening agents in Silicone Emulsion?

The common thickening agents include guar gum, polyacrylamide, fumed silica, and carbomers.

Are Silicone Emulsions Soluble in water?

Silicone emulsion is not soluble in water

What is the temperature of Silicone Emulsion?

The temperature ranges from 593 degrees to 649 degrees.


Silicone emulsion comprises different components, characteristics, and benefits as discussed above.

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