2nd Evaluation Of The Anti-Corrosion Protection Of Small Steel Parts With Vci Film Using Apl04 Test Method
|Film:||MetPro VCI Film|
|Metal Preparation||No Cleaning|
|Date Tested:||25th January — 5th February 2016|
TESTING OF ANTI-CORROSIVE PROPERTIES:
|Test Method:||APL04 (Long Test)|
|Test Metals Used:||Piston parts supplied by customer|
|Temperature Cycle:||1 cycle consists of 6 hours at 40ºC and 6 hours at 10ºC|
|Duration:||24 hours equilibration and 10 days on test (2 cycles per day)|
On a scale of 0 – 100%
(where Excellent = 0-2%, Very Good = >2 – 10%, Good = >10 – 20%, Poor = >20 – 50%, Very Poor = >50 – 100%)
The purpose of this test was to examine the anti-corrosion protection of a piston using MetPro VCI film and compare with a blank piston. A piston, still coated with traces of metal working fluid was wrapped in a 29µm MetPro film, and another was cleaned with methanol and tested as a control. Both samples were then placed in the test chamber and subjected to alternating climatic conditions.
On completion of the test, it was found that this metal is prone to corrosion as the entire surface was discoloured. The results also revealed that MetPro VCI film provided excellent protection for these part as there was no evidence of corrosion or discoloration, following the test.