HoldTight®102 Chloride Removal Test: Data Summary

New York City Department of Transportation (NYC DOT), Brooklyn Site

Under the direction of Dr. Godci Tehrani for NYC DOT and Syed Hussain for HoldTight Solutions Inc.

Equipment was supplied and operated by NYC DOT personnel.

Samples were steel coupons cut from a NYC bridge.

Pressure washing was at approximately 500 p.s.i., 1 - 2 g.p.m.

HoldTight®102 was diluted 50 to 1.

Tests were conducted by Dr. Tehrani and Mr. Hussain using Bresle patches for extracting chloride.

Please note this data is preliminary and based on field notes of HoldTight Solutions Inc. NYC DOT has informally advised HoldTight Solutions Inc., that, on the basis of its analysis of its data, HoldTight®102 is acceptable as a Chloride Removal agent.

Sample#

Description of Sample

Test Kit # 1 Quantab Strips (ppm)

Test Kit # 2 Kitigawa Tubes (ppm)

1

As is - not cleaned

236

250

2

Power Tool Cleaned only

122

130

3

Power Tool Cleaned & pressure washed with water only

210

84

4

Power Tool Cleaned & pressure washed with water + HoldTight®102

32

14

5

Dry Blast only

58

65

6

Dry Blast & pressure washed with water only

41

20

7

Dry Blast & pressure washed with water + HoldTight®102

Undetectable

0