Rust Grip 15,000 Hour Salt Spray Test-ASTM B117

DL Laboratories          

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

Technical Director

 

Re: DL–15881C

OBJECTIVE

To test a coating for compliance to the salt spray requirements as outlined in the Florida Department of Transportation specification.

PRODUCT TESTED

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

TEST PROCEDURE

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.

TEST RESULTS

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

 

APPENDIX

TEST RESULTS 

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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