Evaluating Zerust Anti-stat Bag for Corrosion Inhibitor Protection

Background: Mike Meyer of Jesco and Matt Mark of Bermo Inc. submitted a sample Zerust Anti-Static bag for corrosion inhibitor performance testing by Cortec Laboratories. Bermo packages electronic component equipment individually and boxes in bulk. This packaging application requires vapor phase and contact corrosion protection as well ESD properties.

Purpose: Evaluate the contact and vapor phase corrosion inhibitor performance of Zerust Anti-Stat film and compare to VpCI 125 ESD film produced by Cortec Corporation. Recommend a appropriate corrosion inhibiting packaging solution for Bermo based on the laboratory test results.

Method: Razor Blade Test

VIA Test

Materials: Razor Blade Test Kit

VIA Test Kit

Procedure: The above tests were performed according to standard procedures for each.

Results:

Razor Blade Test (Carbon Steel)

Material

Panel #1

Panel #2

Panel #3

Zerust anti-stat film

Pass

Pass

Pass

Cortec VpCI-125 film*

Pass

Pass

Pass

Control

Fail

Fail

Fail

VIA Test

Material

Plug #1

Plug #2

Plug #3

Zerust anti-stat film

Grade 1

Grade 0

Grade 0

Cortec VpCI-125 film*

Grade 3

Grade 3

Grade 3

Control

Fail

Fail

Fail

*Typical values for Cortec VpCI-125 film

Conclusion: Zerust Anti-stat film doe not provide any vapor phase corrosion (VpCI) protection. Cortec VpCI-125 ESD Film provides vapor phase and contact corrosion protection as well as dissipating any static charge contained within the VpCI-125 ESD bag. The packaging method used by Bermo requires the film to provide vapor phase corrosion protection since the metal to be protected is not in direct contact with the film. Zerust Anti-Stat film is not suitable for Bermo’s application. Cortec VpCI-125 ESD film provides all the necessary protection required by Bermo.

VIA Test Grades (Grade 2 or 3 are passing)

 

 

Project #: 02-189-1125

Estimated Cost of Project: 3 hours

To: Mike Meyer, Jesco

For: Matt Mark, Bermo Inc

From: Bob Berg

Date: 08/26/02

cc: Boris Miksic

Anna Vignetti

Art Ahlbrecht

Margarita Kharshan

Cliff Cracauer

Vanessa Schultz

Bob Boyle