Evaluation of Suprabha VCI Paper
Background: P.K. Mathew has interest in the evaluation of Suprabha VCI paper and the comparison with Cortec VpCI-146 paper.
Purpose: Evaluate the corrosion protection offered by Suprabha VCI paper.
Method: Razor Blade Test
VIA Test
F-12 Test
SO2 Test
NO2- Test
Materials: Razor Blade Test Kit
VIA Test Kit
F-12 Test Kit
SO2 Test Kit
NO2- 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 |
|
Suprabha VCI paper |
Fail |
Fail |
Fail |
|
Cortec VpCI-146 Paper* |
Pass |
Pass |
Pass |
|
Control |
Fail |
Fail |
Fail |
* Typical results for Cortec VpCI-146 paper.
VIA Test
|
Material |
Panel #1 |
Panel #2 |
Panel #3 |
|
Suprabha VCI paper |
Grade 3 |
Grade 3 |
Grade 3 |
|
Cortec VpCI-146 Paper* |
Grade 3 |
Grade 3 |
Grade 3 |
|
Control |
Fail |
Fail |
Fail |
* Typical results for Cortec VpCI-146 paper.
F-12 Test
|
Material |
Panel #1 |
Panel #2 |
Panel #3 |
|
Suprabha VCI paper |
Grade 1 |
--- |
--- |
|
Cortec VpCI-146 Paper* |
Grade 3 |
Grade 3 |
Grade 3 |
|
Control |
Fail |
Fail |
Fail |
* Typical results for Cortec VpCI-146 paper.
** Note: Due to lack of Suprabha VCI paper, only able to perform test on one panel.
SO2 Test
|
Material |
Panel #1 |
Panel #2 |
Panel #3 |
|
Suprabha VCI paper |
Grade 0 |
Grade 1 |
Grade 2 |
|
Cortec VpCI-146 Paper* |
Grade 3 |
Grade 3 |
Grade 3 |
|
Control |
Fail |
Fail |
Fail |
* Typical results for Cortec VpCI-146 paper.
VIA Test Grades
 |
|
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
F-12 Grades (Grade 2 or 3 is passing):
Grade 0- Moderate corrosion covering 10-25% of panel surface
Grade 1- Slight corrosion covering 5-10% of panel surface
Grade 2- Very slight corrosion covering 0-5% of panel surface
Grade 3- No visible corrosion on panel surface
Control- Corrosion covering 5% or more of panel surface
NO2- Test: No nitrites were detected in Suprabha VCI paper.
Conclusion: Suprabha VCI paper provides vapor corrosion inhibitor protection but very limited contact or barrier protection.
Project #: 01-363-1125
Time Spent on Project: 2 hours
To: P.K. Mathew/Bechem OKS Lubricants
From: Bob Berg
Date: 1/25/02
cc: Boris Miksic
Anna Vignetti
Art Ahlbrecht
Cliff Cracauer
Bob Boyle
Rita Kharshan
Christophe Chandler
Vanessa Schultz