Rust Grip 15,000 Hour Salt Spray Test-ASTM B117
74 Kent Street
Brooklyn, New York 11222
January 11, 2011
Superior Products International II, Inc.
10835 W. 78th Street
Shawnee, KS 66214
Att: Mr. Craig R. Smith
To test a coating for compliance to the salt spray requirements as outlined in the Florida Department of Transportation specification.
Coated panels were submitted by Superior Products II, Inc. and identified as:
Rust Grip NS 1, 6-mils through Rust Grip NS 3, 6-mils
The coated panels were exposed in a Salt Fog Chamber maintained in accordance with ASTM B 117, for 15,000 hours. The panels were evaluated periodically for overall blistering in accordance with ASTM D 714 and rust staining in accordance with ASTM D 610.
ASTM D 714, Degree of Blistering
Blister Size Frequency of Occurrence
10 – None F – Few
8 – Pinpoint size M – Medium
6 – 1/16-inch diameter approx. MD – Medium Dense
4 – 1/8-inch diameter approx. D – Dense
2 – ¼-inch diameter approx.
TEST RESULTS (cont.)
ASTM D 610, Degree of Rusting
Rust Grade Description
10 No rusting
9 Minute rusting, less than 0.03% of surface area
8 Few isolated areas, less than 0.1% of surface area
6 Extensive rust areas, less than 1% of surface area
4 Rusting to the extent of 10% of surface area
2 Approximately 33% of surface rusted
0 Approximately 100% of surface rusted
ASTM B 117 SALT SPRAY (FOG) CORROSION RESISTANCE
The three coated panels of Rust Grip NS, 6-mils exhibit the following:
Blistering Rust Staining
15,000 Hours Exposure 10 10
DL Labs, Inc.
Mario Lazaro, Jr.
Assistant Technical Director
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