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LPG in Aerosols Aerosols are made up of two components:
 | The product; in the form of a liquid, emulsion or suspension. |
| The propellant; which can be a liquefied gas, or even a compressed gas. |
The propellant is the driving force (or, you could say, the 'engine') behind the aerosol and there are two types:
| Liquefied propellants are gases that exist as liquids under pressure. Because the aerosol is under pressure the propellant exists mainly as a liquid, but it will also be in the head space as a gas. As the product is used up by opening the valve, some of the liquid propellant turns to gas and keeps the head space full of gas. In this way the pressure in the can remains essentially constant and the spray performance is maintained throughout the life of the aerosol. |
| Compressed gas propellants only occupy the head space above the liquid in the can. When the aerosol valve is opened the gas 'pushes' the liquid out of the can. The amount of gas in the headspace remains the same but it has more space, and as a result the pressure will drop during the life of the can. Spray performance in this type of aerosol is maintained by careful choice of aerosol valve and actuator. |
Aerosol propellant grade LPG consists of a high purity mixture of propane, isobutane and n-butane. LPG is used as the propellant in most aerosols today.
Shell Gas LPG offers a unique advantage to customers in Aerosol industry through its strong position as fuel manufacturer & supplier. As well as the wealth of technical & engineering know -how in this area,
Shell Gas LPG supplies the highest quality products for the Aerosol industries.
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