ASTM D6665-09
(Practice)Standard Practice for Evaluation of Aging Resistance of Pre-stressed Prepainted Metal in a Boiling Water Test
Standard Practice for Evaluation of Aging Resistance of Pre-stressed Prepainted Metal in a Boiling Water Test
ABSTRACT
This practice establishes the standard procedures for evaluating the resistance of pre-stressed prepainted metal panels to cracking and loss of adhesion, or both, after accelerated aging by boiling water. This method shall require the use of boiling water bath, 10x magnifier, adhesive tape or its equivalent, and deionized or other water as reagent.
SCOPE
1.1 This practice can be used to evaluate the resistance of a pre-stressed prepainted metal panel to cracking and loss of adhesion, or both, after accelerated aging by boiling water. Most coil coated products are formed and bent into specific shapes to produce a final product. These operations introduce stresses, which may be relieved by cracking of the coating after aging.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D6665 − 09
StandardPractice for
Evaluation of Aging Resistance of Pre-stressed Prepainted
1
Metal in a Boiling Water Test
This standard is issued under the fixed designation D6665; 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 (´) 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
5.1 Bumped,bent,drawnorotherwisedeformedsamples,to
shapes to produce a final product. These operations introduce
beagreeduponbetweencustomerandvendor.Theseshouldbe
stresses,whichmayberelievedbycrackingofthecoatingafter
prepared according to Test Methods D2794, D4145, E643,
aging.
and/or prepared in a manner agreed upon by customer and
1.2 This standard does not purport to address all of the
vendor.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Procedure
priate safety and health practices and determine the applica-
6.1 Examine the test specimens for cracking, flowering and
bility of regulatory limitations prior to use.
tape pick-off (adhesion loss), and record the results.
2. Referenced Documents
6.2 Place the formed test specimens in the boiling water
2
bath for one (1) min. Different times may be used if agreed
2.1 ASTM Standards:
upon by customer and vendor.
D2794 Test Method for Resistance of Organic Coatings to
the Effects of Rapid Deformation (Impact)
6.3 Remove the test specimens and allow them to air dry
D4145 Test Method for Coating Flexibility of Prepainted
and cool to room temperature.
Sheet
6.4 Inspect the test specimens for cracking, flowering and
E643 Test Method for Ball Punch Deformation of Metallic
adhesion loss, then repeat the tape adhesion test.
Sheet Material
7. Report
3. Apparatus
7.1 Report the observations regarding cracking, flowering
3.1 Boiling water bath big enough to hold formed test
and adhesion loss.
specimens.
7.2 The degree of cracking, flowering and tape pick-off
3.2 10× magnifier (optional).
allowed should be agreed upon by customer and vendor.
Report cracking, flowering and tape pick-off noted befo
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6665–01 Designation:D6665–09
Standard Practice for
Evaluation of Aging Resistance of Pre-stressed Prepainted
1
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 Thispracticecanbeusedtoevaluatetheresistanceofapre-stressedprepaintedmetalpaneltocrackingandlossofadhesion,
or both, after accelerated aging by boiling water. Most coil coated products are formed and bent into specific shapes to produce
a final product. These operations introduce stresses, which may be relieved by cracking of the coating after aging.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D 2794 Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
D 4145 Standard Test Method for Coating Flexibility of Prepainted Sheet
E 643 Standard Test Method for Ball Punch Deformation of Metallic Sheet Material
3. Apparatus
3.1 Boiling water bath big enough to hold formed test specimens.
3.2 103 magnifier (optional).
3.3 Scotch #610 adhesive tape or equivalent.
4. Reagents
4.1 Deionized or other water, as agreed upon by customer and vendor.
5. Test Specimen
5.1Bumped, bent, drawn or otherwise deformed samples, to be agreed upon between customer and vender. These should be
prepared according to Test Methods D2794, D4145, and E643, unless such methods do not exist—at which time the deformed
samples should be prepared in a manner agreed upon by customer and vendor.
5.1 Bumped, bent, drawn or otherwise deformed samples, to be agreed upon between customer and vendor. These should be
prepared according to Test Methods D 2794, D 4145, E 643, and/or prepared in a manner agreed upon by customer and vendor.
6. Procedure
6.1 Examine the test specimens for cracking, flowering and tape pick-off (adhesion loss), and record the results.
6.2 Place the formed test specimens in the boiling water bath for one (1) min. Different times may be used if agreed upon by
customer and vendor.
6.3 Remove the test specimens and allow them to air dry and cool to room temperature.
6.4 Inspect the test specimens for cracking, flowering and adhesion loss, or both, then repeat the tape adhesion test.
7. Report
7.1Report the obser
...
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