ASTM D2064-91(1998)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 2064 – 91 (Reapproved 1998)
Standard Test Method for
Print Resistance of Architectural Paints
This standard is issued under the fixed designation D 2064; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope create a pressure of about 0.9 psi (6.2 kPa). This assembly is
placed in a 140°F (60°C), or other agreed upon temperature,
1.1 This test method covers an accelerated procedure for
oven for 1 h. When cooled, the resulting paint surfaces are
evaluating the print resistance of architectural paints. It differs
rated on the numerical scale of 0 to 10, which corresponds to
from print resistance Test Method D 2091 in that the latter is
a subjective rating of an impression resulting from their being
concerned with lacquer finishes under packaging, shipping, and
in contact with the cheesecloth.
warehousing conditions, whereas this test method is concerned
with decorative coatings undergoing random on-site pressure
5. Significance and Use
contact.
5.1 The ability of a coating to resist printing is important
NOTE 1—Printing should not be confused with blocking, which is
because its appearance is adversely affected if the smoothness
measured in Test Method D 4946. The former relates to the indentation of
of the coating film is altered by contact with another surface,
a surface, and the latter, the sticking together of two surfaces.
particularly one with a texture. Interior paint systems, particu-
1.2 The values stated in inch-pound units are to be regarded
larly gloss and semigloss on window sills and other horizontal
as the standard. The values given in parentheses are for
surfaces, often have objects such as flower pots placed on them
information only.
that may tend to leave a permanent impression. This tendency
1.3 This standard does not purport to address all of the
for a paint film to “print” is a function of the hardness of the
safety concerns, if any, associated with its use. It is the
coating, the pressure, temperature, humidity, and the duration
responsibility of the user of this standard to establish appro-
of time that the object is in contact with the painted surface.
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Conditioning Room, at 65 to 85°F (18 to 29.5°C) and 40
2. Referenced Documents
to 60 % relative humidity.
2.1 ASTM Standards:
6.2 Glass Slides, approximately 3 by 6 in. (75 by 150 mm).
D 2091 Test Method for Print Resistance of Lacquers
6.3 Drawdown Applicator, 3-in. (75-mm) wide with a
D 4946 Test Method for Blocking Resistance of Architec-
clearance of 6 mils (150 μm).
tural Paints
6.4 Oven, maintained at 140 6 3.5°F (60 6 2°C) or, other
agreed upon temperature.
3. Terminology
6.5 Rubber Stoppers, No. 8 (40-mm top diameter and
3.1 Definitions:
32-mm bottom diameter).
3.1.1 print resistance—the ability of a paint film to resist
6.6 Cheesecloth, medium weave, 24/20, bleached cotton.
forming a permanent impression in a semihardened film as a
6.7 Scissors.
result of a pressure from an object placed on it.
6.8 Weight, 500-g.
3.2 For additional definitions of terms, refer to Paint/
Coatings Dictionary. 7. Procedure
7.1 Cast the paints being tested on glass slides using a
4. Summary of Test Method
drawdown applicator with a clearance of 6 mils (150 μm).
4.1 A piece of cheesecloth is placed on the painted surface
Allow the coated glass slides to dry in the conditioned room for
and topped with a No. 8 rubber stopper (position smaller
7 days.
diameter of stopper on the cheesecloth) and a 500-g weight to
1 1
7.2 Cut out approximately 1 ⁄2 by 1 ⁄2-in. (40 by 40-mm)
pieces of cheesecloth, one piece for each slide. Use cheesecloth
that is usually supplied with 4 intact layers. Do not separate the
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
layers.
and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee
...