ASTM D6665-01

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Designation:D6665–01
Standard Practice for
Evaluation of Aging Resistance of Pre-stressed Prepainted
Metal in a Boiling Water Test
This standard is issued under the fixed designation D 6665; 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 4. Reagents
1.1 This practice can be used to evaluate the resistance of a 4.1 Deionized or other water, as agreed upon by customer
pre-stressed prepainted metal panel to cracking and loss of and vendor.
adhesion, or both, after accelerated aging by boiling water.
5. Test Specimen
Most coil coated products are formed and bent into specific
shapes to produce a final product. These operations introduce 5.1 Bumped, bent, drawn or otherwise deformed samples, to
be agreed upon between customer and vender. These should be
stresses, which may be relieved by cracking of the coating after
aging. prepared according to Test Methods D 2794, D 4145, and
E 643, unless such methods do not exist—at which time the
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the deformed samples should be prepared in a manner agreed upon
by customer and vendor.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6. Procedure
bility of regulatory limitations prior to use.
6.1 Examine the test specimens for cracking and tape
2. Referenced Documents
pick-off (adhesion loss), and record the results.
6.2 Place the formed test specimens in the boiling water
2.1 ASTM Standards:
D 2794 Standard Test Method for Resistance of Organic bath for one (1) min. Different times may be used if agreed
upon by customer and vendor.
Coatings to the Effects of Rapid Deformation (Impact)
D 4145 Standard Test Method for Coating Flexibility of 6.3 Remove the test specimens and allow them to air dry
Prepainted Sheet and cool to room temperature.
6.4 Inspect the test specimens for cracking and adhesion
E 643 Standard Test Method for Ball Punch Deformation of
Metallic Sheet Material loss, or both, then repeat the tape adhesion test.
7. Report
3. Apparatus
3.1 Boiling water bath bi
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