Evaluation Of The Anti-Corrosion Protection Of Small Steel Parts With Vci Film Using Apl04 Test Method
|Film:||LDPE Only Film||MetPro VCI Film|
|Date Tested:||July 3 — July 14 2014|
TESTING OF ANTI-CORROSIVE PROPERTIES:
|Test Method:||APL04 (Long Test)|
|Test Metals Used:||Small steel 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 small steel parts using MetPro VCI film. Sample A was wrapped in LDPE film, while sample B was wrapped in MetPro film.
The samples were then placed in the test chamber and subjected to alternating temperature in 100% RH. This environment enables condensation to occur on the surface of the metal, thus encourages corrosion.
On completion of the test, the samples were removed for inspection. Sample A was found to be completely corroded indicating the severity of the test. Sample B was completely free from corrosion, indicating that the VCI film provides excellent protection from corrosion of the steel part.