ASTM D2201-99
(Practice)Standard Practice for Preparation of Zinc-Coated and Zinc-Alloy-Coated Steel Panels for Testing Paint and Related Coating Products
Standard Practice for Preparation of Zinc-Coated and Zinc-Alloy-Coated Steel Panels for Testing Paint and Related Coating Products
SCOPE
1.1 This practice covers the preparation of zinc-coated and zinc-alloy-coated sheet steel panels to be used for testing paint, varnish, lacquer, conversion coatings, and related products. It covers sheet steel coated with hot dipped galvanized, one-side galvanized, electrogalvanized, zinc-iron alloy coatings (such as galvanneal), and zinc-5% aluminum alloy coatings. It does not cover steel panels coated with 55% aluminum-45% zinc alloy, because these behave more like aluminum than zinc.
1.2 This standard does not purport to address all of the safety problems, 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:D2201–99
Standard Practice for
Preparation of Zinc-Coated and Zinc-Alloy-Coated Steel
Panels for Testing Paint and Related Coating Products
This standard is issued under the fixed designation D 2201; 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 ISO 5002 Hot-rolled and cold-reduced electrolytic zinc-
coated carbon steel sheet of commercial and drawing
1.1 This practice covers the preparation of zinc-coated and
qualities
zinc-alloy-coated sheet steel panels to be used for testing paint,
varnish, lacquer, conversion coatings, and related products. It
3. Significance and Use
covers sheet steel coated with hot dipped galvanized, one-side
3.1 Theproceduresdescribedinthispracticearedesignedto
galvanized,electrogalvanized,zinc-ironalloycoatings(suchas
provide uniform zinc coated steel panels for testing of paint,
galvanneal),andzinc-5 %aluminumalloycoatings.Itdoesnot
varnish, lacquer, conversion coatings and related products.
coversteelpanelscoatedwith55 %aluminum-45 %zincalloy,
3.2 The proper description of the zinc coating on the
because these behave more like aluminum than zinc.
substrate is an important part of this practice. Seemingly slight
1.2 This standard does not purport to address all of the
differences in zinc coating can produce substantial differences
safety problems, if any, associated with its use. It is the
in coating performance.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Metal Substrate
bility of regulatory limitations prior to use.
4.1 The test panels shall be completely free of any visible
signs of storage stain or white rust (zinc corrosion).All corners
2. Referenced Documents
and edges shall be smooth and uniformly rounded.
2.1 ASTM Standards:
4.2 The type of zinc coating, zinc thickness, metal thick-
A 525 Specification for General Requirements for Steel
ness, and panel size shall be agreed upon between the pur-
Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process
chaser and seller.
A 591/A591M Specification for Steel Sheet, Electrolytic
4.3 Zinccoatedsteelmaybeshippedfromthemillsunoiled.
Zinc-Coated, for Light Coating Mass Applications
However, zinc coated steel that has been oiled with a nonre-
A 875/A875M Specification for Steel Sheet, Zinc-5 %Alu-
active rust preventative oil shall be acceptable under this
minum Alloy-Coated by the Hot-Dip Process
specification.
D 609 Practice for Preparation of Cold-Rolled Steel Panels
4.4 Zinc coated steel may be shipped from the mill with a
for Testing Paint, Varnish, Conversion Coatings, and
phosphate pretreatment for improved paint bonding.
Related Coating Products
D 2092 Guide for Preparation of Zinc-Coated (Galvanized) NOTE 1—Caution: Alkaline cleaning such pre-phosphated metal will
often remove the phosphate coating.
Steel Surfaces for Painting
2.2 ISO Standards:
4.5 Elimination of Passivating Treatments:
ISO 3575 Continuoushot-dipzinc-coatedcarbonsteelsheet
4.5.1 The test panels shall be free of passivating treatments
of commercial, lock-forming and drawing qualities
(Note 2), because such treatments interfere with paint bonding.
NOTE 2—Passivating treatments are applied at the mill to prevent
1 oxidation of the zinc (white rust) during storage. Because they bond
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
tightly to the zinc, they also prevent paints and other coatings from
and Related Coatings, Materials, andApplications and is the direct responsibility of
bonding to the zinc. Zinc coated material stocked in commercial ware-
Subcommittee D01.27 on Accelerated Testing.
Current edition approved Dec. 10, 1999. Published February 2000. Originally housesalmostalwayshasapassivatingtreatment.Toobtainnonpassivated
published as D 2201 – 63 T. Last previous edition D 2201 – 92.
zinc coated steel, it’s generally necessary to special order steel directly
Annual Book of ASTM Standards, Vol 01.06.
from a steel mill, or to buy panels from manufacturers of standard test
Annual Book of ASTM Standards, Vol 06.01.
panels. See Appendix X2 of Practices D 2092 for further information on
Annual Book of ASTM Standards, Vol 06.02.
identifying the presence of passivating treatments.
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D2201
4.5.2 Zinc coated sheet that has never been subjected to any impregnated with a volatile corrosion inhibitor (VCI) specifi-
kind of passivating treatment is preferred for this practice. cally designed for zinc, and then placed in a waterproof bag or
4.5.3 Zinc coated sheet that has been passivated may be envelope.Inordertoavoidcontaminationfromfingerprints,do
usedifthepassivatingtreatmentisremovedinaccordancewith not touch the surface of the panel after it has been cleaned.
5.1. Handle the panels by the edges only.
NOTE 3—Caution: Removing the passivation may alter the morphol-
7. Report
ogy of the zinc crystal structure.
7.1 Report the following information:
5. Methods of Preparation
7.1.1 Panel size and thickness,
5.1 If the surface has a passivating treatment, remove it by 7.1.2 Steel temper (for example, commercial quality, draw-
rubbing with a non-woven abrasive pad and rinsing with ing quality, drawing quality special killed),
distilled or deionized water. 7.1.3 Method of preparation used,
5.2 Use one of the methods of preparation described in 7.1.4 DescriptionofZincCoating—Iti
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