Summary. The vapour degreasing process, ideal for cleaning parts sensitive to liquids, uses condensed solvent vapours, typically chlorinated or fluorinated, to remove oils and greases. The process involves heating solvent in a tank to create vapours, which then condense on and cleanse the item, effectively dissolving contaminants. This technique is especially suitable for items with intricate features or hard-to-reach areas.


Vapour degreasing is an amazing technology. It is perfect for products that cannot be introduced to water and/or other liquids. This is because the vapour degreasing process keeps the physical liquids away from the product. If you’re wondering if this method of cleaning is right for you, it’s important to understand the basics. So, as vapour degreasing experts, we’ve outlined the process to get you started.

What is Vapour Degreasing?

Vapour Degreasing is the procedure of degreasing and cleaning parts using condensed solvent vapours. The process utilises the hot vapours of a chlorinated or fluorinated solvent to evacuate soils, especially oils, greases, and waxes.

How Does it Work?

A vapour degreasing unit comprises of a steel tank with a heated solvent reservoir or sump at the base and a cooling zone close to the top.

To start with, a measured amount of heat is pumped into the chamber. This boils the chemicals and generates the hot solvent mixed gas (vapour.) Because the hot gas is heavier than the air, it pushes the air up and fills the tank up to the cooling area.

Furthermore, the vapour from the chemicals travels to the top of the cooling area of the machine. The temperature difference between the hot gas and the degreasing cold item, causes the chemical gas to condense onto thus attach itself to the item and dissolve the grease, wax, etc.

Understanding The Process

The soils expelled from the work pieces boil at much higher temperatures than the solvent. Therefore, bringing the development of unadulterated solvent vapours. Even if the boiling solvent contains heavy contamination from soil of previous work parts, the process remains effective.

In vapour degreasing, solvent vapours build up and heat the parts to the boiling temperature of the degreasing solvent. The parts then quickly dry as they exit the vapour zone. Typically, manufacturers control solvent stability by adding stabilisers during solvent fabrication. Most regular chlorinated solvents all oblige stabilisers to perform effectively in vapour cleaning.

The Framework

The least complex type of degreasing framework enables the build up of solvent vapour. There may be a need of a spray stage if the work piece contains visually impaired openings or breaks that are not available to the vapour. Therefore, if the vapour cannot uproot the soil, the framework then comprises vapour-spray-vapour stages. Different techniques incorporate warm liquid-vapour, boiling liquid/warm – liquid-vapour frameworks. Likewise ultrasonic cleaning can be utilised as a part of conjunction with the vapour degreasing process.

At the point when a ferrous metal is vapour degreased, organic films are generally evacuated. After that, the metal is exceedingly helpless to atmospheric consumption. When steel parts with a high surface completion (e.g. anti-friction direction) are being degreased and finish rust counteractive action is coveted, rust flushing ought to be incorporated as a vital piece of the degreasing framework.


Get in Touch with Supersheen Today

Are you looking for vapour cleaning services in the West Midlands? Supersheen are a leading metal finishing company specialising in metal deburring, vapour degreasing, vibro deburring & barrel polishing. We have established a reputation for delivering high quality services unsurpassed in the finishing industry. WIth a fast turnaround, we collect, process and deliver your products from and to your factory.

If you found this blog useful, you may want to read a previous one on Deflashing and Deburring