With the temperature monitoring test one of the most important aspects related to industrial painting is verified: that the drying and hardening phase of the paint has been carried out correctly, inside the curing oven.
Monitoring the temperature of a surface coating means making sure that the polymerisation phase has taken place according to the reference standards. An unsuitable curing temperature would lead to a non-optimal drying of the paint, a factor that can cause it to detach from the substrate with evident damage to the treated item.
The procedure that leads to carrying out this test involves the use of an instrument called a temperature data logger: it is a device made up of a data recorder contained within a protective metal casing, and a series of sensors specifically designed for temperature detection.
By placing these sensors directly on the painted surface, the data logger is allowed to accompany the item to be tested directly inside the curing oven. Here, the recorder contained in the metal casing collects the data from the sensors and subsequently, by connecting the data logger to a computer, it will be possible to analyse the results of the test.
The standard that governs this test is the one indicated by Datapaq.
In the graph, the outcome of a paint temperature verification test, for alloy wheels treated with cataphoresis.