Evaluating Australian Challenge Corrosion Inhibitor Film
Background: Hiro Tatejima/Itochu Plastics System Co. submitted green LDPE co-extruded film labeled as Australian Challenge to Cortec Corporation for Corrosion inhibitor performance evaluation. Film claimed to contain VCIs.
Purpose: Evaluate corrosion inhibitor performance of film, labeled as Australian Challenge.
Method: Razor Blade Test
VIA Test
SO2 Test
Materials: Razor Blade Test Kit
VIA Test Kit
SO2 Test Kit
Procedure: The above tests were performed according to standard procedures for each.
Results: Razor Blade Test
Material |
Panel #1 |
Panel #2 |
Panel #3 |
Australian Challenge Film |
Fail |
Fail |
Fail |
Cor-Pak Stretch Film* |
Pass |
Pass |
Pass |
Control |
Fail |
Fail |
Fail |
VIA Test
Material |
Plug #1 |
Plug #2 |
Plug #3 |
Australian Challenge Film |
Grade 0 |
Grade 0 |
Grade 0 |
Control |
Grade 0 |
Grade 0 |
Grade 0 |
SO2 Test
Material |
Panel #1 |
Panel #2 |
Panel #3 |
Australian Challenge Film |
Grade 0 |
Grade 0 |
Grade 0 |
Cor-Pak Stretch Film* |
Grade 4 |
Grade 4 |
Grade 4 |
Control |
Fail |
Fail |
Fail |
*Typical results of Cor-Pak Stretch Film
VIA Test Grades (Grade 2 or 3 are passing)
|
SO2 Grades (Grade 3 and 4 are passing):
Grade 0- Extensive corrosion covering 25% or more of panel surface
Grade 1- Moderate corrosion covering 10-25% of panel surface
Grade 2- Slight corrosion covering 5-10% of panel surface
Grade 3- Very slight corrosion covering 0-5% of panel surface
Grade 4- No visible corrosion on panel surface
Conclusion: The film labeled as Australian Challenge does not contain Cortec’s masterbatch, has not sufficient amount of inhibitors (if any), and, based on the testing results, doesn’t provide any corrosion protection.
Project #: 02-129-1125
Estimated Cost of Project: 2 hours
To: Hiro TateJima/Itochu Plastics System Co.
From: Bob Berg
Date: 6/13/02
cc: Boris Miksic
Anna Vignetti
Art Ahlbrecht
Margarita Kharshan
Cliff Cracauer
Bob Boyle
Vanessa Schultz