MADHUR ENTERPRISES

 
 
EXTRACTS OF TEST REPORT
 

PACIFIC TESTING LABORATORIES, INC.

24950, Avenue Tibbitts, Valencia, CA 91355 – 3426 USA
Tel.: (661) 257-1437 Fax : (661) 257-2411.

 
 
Extracts of Test Report No. 35857-2 of Liquiguard-PC

 

A. FLEXIBILITY:

The coating should not crack, or crazing when tested per paragraph 4.8.11.

 
Test Method  : The specimen was tested for Flexibility in accordance with paragraph     4.8.11, of MIL-I-46058C, Amendment 7.
 
Results : When the tested specimens were visually examined at 10X   magnification, the specimens exhibited no evidence of cracking or   crazing of coating material.
 
Conclusion : The samples tested met the requirement when   subjected to the   Flexibility Test as described herein.
 
B. ADHESION :
The coating should not detach from the substrate when tested.
 

Test Method : The specimen was tested for Adhesion in accordance with ASTMD 3359, Method B (Cross-Cut Tape Test).

 

Test Description : About one (1) inch cuts made for each specimen using a multiblade     cutter. The specimens were cut through the film to the substrate in   one steady motion using just sufficient pressure on the cutting tool to   have the cutting edge reach the substrate. After making the required   cuts, brushed the film lightly with a soft brush to remove any   detached flakes or ribbons of coating.

Then, the tape was placed over the grid. To ensure good contact with   the film, the tape was rubbed firmly with the eraser on the end of a   pencil. Within 90 seconds of application, the tape was removed by   seizing the free end and rapidly (not jerked) back upon itself at as   close to an angle of 190 degree as possible. The grid area was   inspected for removal of coating from the substrate.

 
Results : When visually examined, the edges of the cuts were completely   smooth and non of the squares of the lattice was detached.
 

Conclusion : The samples tested met the requirement stated by the customer when subjected to the Adhesion Test as described herein.

 
C. IMPACT TEST :
The coating should not crack, peel, or have edge failure when   impacted with a heavy metal object. ASTM D1709 (Free Falling   Dart   Method).
 

Test Method : Each of the two samples submitted for the Impact Test were tested as   received, at room ambient conditions, there was no conditioning   required.

As Test-Fixture was assembled which included a Gardner Laboratory   Model 1053 Impact Tester, equipped with an Impact Dark. The Dart   exhibited a weight of 10 pounds, approximately 0.575”.

A solid steel block was used as base upon which the sample to be   tested was placed, to ensure that the height measurement was  corrected to the point of Impact.

The Red-coated sample was tested first, followed by Blue-coated   sample.

Each sample was subjected to a series of seven (7) Impacts; each   Impact was conducted on the same surface, approximately one-inch   distant from the previous.

Each Impact Point was identified on the sample, immediately   following the Impact, to enable subsequent macro-microscope   examination.

Each sample was subjected to the following Impacts, using the standard 10 pound Dart :

Drop Height : 6, 12, 18, 24, 30, 36, 42 inches (42” drop height is the   limit of the Gardner Laboratory Impact Tester).

Following completion of seven (7) Impact on each of the two (2)   tested samples were subjected to macro-microscopic evaluation at a   magnification of 8X, at each of the Impact points.

 
Test Results : There was no evidence of cracking, peeling, or edge-failure of the   coating when impacted with the heavy metal dart dropped onto the   coated surface of the substrate.
 
Conclusion : The samples tested met the requirement stated by the customer when subjected to the Impact Test as described herein