Cleaning Internal Radiator Parts

Radiators play an important role in the functioning of various types of equipment and machinery, from automobiles to HVAC systems. Over time, these radiators accumulate contamination such as hard carbonised resin which can hinder their performance. To ensure efficient functioning of the radiators, it is important to clean them regularly.

Customers Criteria: Free from all contamination
Material: Aluminium, Copper
Component: Radiator Internal Part
Contamination prior to cleaning: Hard carbonised resin

The cleaning criteria set by the customer required the radiator internal parts to be free from all contamination. These internal parts are typically made of aluminium or copper. The contamination prior to cleaning is usually hard carbonised resin, which is difficult to remove using conventional cleaning methods.

Ultrasonic Cleaner Cleaning Fluid Temperature(s) Concentration
Kemet 30 Galvex 18.01 80°C 3%
Kemet 30 Tap water 50°C 100%
Versa 120 Dryer N/A 65°C N/A

Process for cleaning radiator internal part:

To clean the radiator internal parts, a powerful cleaning agent called Decospray HT13 was used. Decospray HT13 is an alkaline cleaning detergent with a pH value of 14, which makes it a stronger cleaning agent. It has very high degreasing and oil separation properties, which make it effective in removing contamination from sensitive metals like aluminium and copper.

Before cleaning the radiator internal parts, a smaller bench top ultrasonic was used to test the off-cut of a radiator. The tank was degassed and allowed to reach temperature before cleaning. The sample was then placed in a basket and submerged in the tank for a cycle time of 10 minutes.

After the first cycle, a quick inspection revealed that the cleaning agent was effective at removing the contamination without attacking the sensitive metals. However, heavy contamination was still remaining, and further cleaning was required. The sample had a total cleaning time of 2 hours in the ultrasonic before being rinsed in tap water for 3 minutes and finally dried in a hot air dryer for 15 minutes at 65°C.

Before cleaning radiator

before cleaning radiator

After cleaning radiator

after cleaning radiator

kemet ISO 9001

BSI number Q05919

Over 85 years of service to industry

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