Evaluating Cortec VpCI-146 Paper with Requirements Listed in
Performance Specification MIL-PRF-3420G
Background: Cortec Corporation is
seeking to have Cortec VpCI-146 listed on qualified product list
MIL-PRF-3420G. The process of
getting listed, involves Cortec Corporation performing the requirement tests as
listed in performance specification MIL-PRF-3420G. Upon attaining results in compliance with what is listed in
performance specification MIL-PRF-3420G, Cortec Corporation will submit product
to Naval Air Systems Command. Naval Air Systems Command will then repeat
testing to confirm results attained by Cortec Corporation.
Purpose:
Perform the tests as
indicated in performance specification MIL-PRF-3420G and compare results with
listed result requirements.
Method: Compatibility
with Copper Test (MIL-PRF-3420G, Section 4.6.4)
Vapor inhibitor ability Test (FED-STD-101 Test Method
No. 4031, procedure B)
Vapor
inhibitor ability after exhaustion Test (FED-STD-101 Test Method No. 4031,
procedure B)
Contact
Corrosivity Test(FED-STD-101 Test Method No. 3005)
Blocking
Resistance Test(FED-STD-101 Test Method No. 3003, procedure A)
Water
resistance of markings Test (FED-STD-101 Test Method No. 3027)
Bursting
Strength Test(FED-STD-101 Test Method No. 2007)
Tearing
Strength Test (ASTM D689)
Compatibility
with MIL-PRF-131 barrier material Test (MIL-PRF-3420G, Section 4.6.5)
Long
Term Protection Test (MIL-PRF-3420G, Section 4.6.3)
Materials: Cortec
VpCI-146 paper
The
materials used for the above listed methods, are indicated in each test method
standard operating procedure.
Procedure: The
above tests were performed according to standard procedures for each.
Results:
Compatibility with Copper
Procedure was done according MIL-PRF-3420G, section
4.6.4.2
Compatibility with Copper
test results
|
Material
|
Corrosion amount (%)
|
Performance Requirement
|
|
Copper panel wrapped with
Cortec VpCI-146 paper
|
0
|
No pitting, etching or
discoloration of
vapor exposed copper
surface
|
|
Copper panel wrapped with
Cortec VpCI-146 paper
|
0
|
No pitting, etching or
discoloration of
vapor exposed copper
surface
|
|
Copper panel wrapped with
Cortec VpCI-146 paper
|
0
|
No pitting, etching or
discoloration of
vapor exposed copper
surface
|
Vapor inhibitor ability
Procedure was done according to FED-STD-101 Test
Method No. 4031 procedure B
Vapor inhibitor ability test
results
|
Material
|
Corrosion observed (%)
|
Performance Requirement
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Control
|
~ 40
|
|
Vapor inhibitor ability (after exhaustion)
Procedure was done according to Fed-STD-101 Test
Method No. 4031 procedure B
Vapor inhibitor ability
(after exhaustion) test results
|
Material
|
Corrosion observed (%)
|
Performance Requirement
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of polished surface of steel panel
|
|
Control
|
~ 62
|
|
Contact Corrosivity
Procedure was done according to Fed-STD-101 Test
Method No. 3005
Carbon Steel panels used.
Contact Corrosivity test
results
|
Material
|
Amount of corrosion
after 20 hours (%)
|
Performance Requirement
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of contact area of panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of contact area of panel
|
|
Cortec VpCI-146
|
0
|
No corrosion, etching or
pitting of contact area of panel
|
Blocking Resistance
Procedure was done according to FED-STD-101 Test
Method No. 3003 procedure A
Blocking Resistance test
results
|
Material
|
Qualitative results
|
Performance Requirement
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
|
Cortec VpCI-146
|
No blocking,
delamination or rupture
|
No delamination, tearing
or flaking when the sheets
|
Water resistance of Markings
Procedure was done according to FED-STD-101 Test
Method No. 3027
Water Resistance of Markings
test results
|
Material
|
Qualitative description of
markings after
two hours in circulating
water bath
|
Performance Requirement
|
|
Cortec VpCI-146
|
Observed markings are
clear and legible
|
Markings shall be clear
and legible
|
|
Cortec VpCI-146
|
Observed markings are
clear and legible
|
Markings shall be clear
and legible
|
|
Cortec VpCI-146
|
Observed markings are
clear and legible
|
Markings shall be clear
and legible
|
Bursting Strength
Procedure was done according to FED-STD-101 Test
Method No. 2007
Bursting Strength test
results
|
Material
|
FED-STD-101 Test Method
No. 2007;
Bursting Strength (psi)
|
Performance Specification
|
|
Cortec VpCI-146 paper
|
42.28/43.04
|
40
|
Note: Printed side up/Printed side down
See Enclosed report
Tearing Strength
Procedure was done according to ASTM D689
Tearing Strength test
results
|
Material
|
ASTM D689 Tearing Strength
(gf)
|
Performance Requirement
(gf)
|
|
Cortec VpCI-146 paper
|
39.0/42.4
|
40/40
|
Note: Machine Direction/Cross Direction
See Enclosed report
Compatibility with MIL-PRF-131 Barrier Material
Procedure was done according to MIL-PRF-3420G, section
4.5.6.2
Compatibility with
MIL-PRF-131 Barrier Material test results
|
Material
|
Deterioration amount on
surface of Cortec
VpCI-146 paper %
|
Performance Requirement
|
|
Cortec VpCI-146 paper
|
0
|
No delamination, swelling,
embrittlement, dissolution,
effect on the sealability
or deterioration of barrier materials
|
|
Cortec VpCI-146 paper
|
0
|
No delamination, swelling,
embrittlement, dissolution, effect
on the sealability or
deterioration of barrier materials
|
|
Cortec VpCI-146 paper
|
0
|
No delamination, swelling,
embrittlement, dissolution, effect
on the sealability or
deterioration of barrier materials
|
Long
Term protection test
Procedure done according to MIL-PRF-3420G sections
4.6.3.1 and 4.6.3.2
Long term protection test results
|
Material
|
Corrosion amount
on four panels
after one year (%)
|
Performance Requirement
|
|
Cortec VpCI-146 paper
|
0
|
No corrosion of steel
panels
|
|
Cortec VpCI-146 paper
|
0
|
No corrosion of steel
panels
|
|
Cortec VpCI-146 paper
|
0
|
No corrosion of steel
panels
|
|
Cortec VpCI-146 paper
|
0
|
No corrosion of steel
panels
|
Conclusion: Cortec
VpCI-146 corrosion inhibiting paper satisfies the testing requirements of
Performance Specification MIL-PRF-3420G.
Project #:
02-002-1125 (2)
Estimated Cost of Project: $4,500.00
To: Frank
Magnifico/Naval Air Systems Command
From: Bob Berg
Date: 4/9/03
cc: Boris Miksic
Anna Vignetti
Art
Ahlbrecht
Rita
Kharshan
Cliff
Cracauer
Vanessa
Schultz
Bob
Boyle
|
