METHOD 6301.3
March 22, 2001
ADHESION (WET) TAPE TEST
1.
SCOPE
1.1
Scope. This method covers a procedure suitable for establishing acceptability of intercoat
and surface adhesion of an organic coating system immersed in water. This procedure may be
utilized as a production test.
2.
APPARATUS
2.1
Masking tape. A masking tape that has a 1-inch wide strip of flatback paper tape having an
average adhesion of 60-ounces/inch widths with a code number 250 or equivalent.
2.2
Roller. A 4-1/2-pound rubber covered roller, having a surface Durometer hardness value
within the range of 70 to 80. A roller approximately 3-1/2 inches in diameter and 1-3/4 inches in
width.
3.
REAGENTS
3.1
Reagents. Distilled water.
4.
PROCEDURE
4.1
Preparation. Apply the coating system to the substrate and allow drying as specified in the
product specification. Immerse the test specimen in distilled water for 24 hours. Remove the test
specimen from the water and wipe dry with a soft cloth. Within 1 minute after removal from the
water make two parallel scratches, one inch apart, through the coating to the metal with a stylus.
Immediately apply a 1-inch wide strip of the masking tape with the adhesive side down across the
scratches. Press the tape against the surface of the coating by passing the roller across the tape eight
times. Remove the tape with one quick motion and examine for damage to the intercoat or surface
adhesion.
5.
PRECISION
5.1
Data. No data.
6.
NOTES
6.1
Notes. None.
FED. TEST METHOD STD. 141D
1
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