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ASTM D3260-01

(Test Method)

Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products

Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products

SCOPE
1.1 This test method covers the evaluation of the mortar and acid resistance of clear protective coating factory applied to extruded aluminum substrates.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.

General Information

Status
Historical
Publication Date
09-May-2001
ICS
87.020 - Paint coating processes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.55 - Factory Applied Coatings on Preformed Products
Current Stage
Ref Project

Relations

Replaces
ASTM D3260-82(1996)e1 - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
Effective Date
10-May-2001
Replaced By
ASTM D3260-01(2005) - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
Effective Date
15-May-2005
Referred By
ASTM D3451-06(2017) - Standard Guide for Testing Coating Powders and Powder Coatings
Effective Date
10-May-2001

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ASTM D3260-01 - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum ProductsASTM D3260-01 - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
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ASTM D3260-01 - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3260–01
Standard Test Method for
Acid and Mortar Resistance of Factory-Applied Clear
1
Coatings on Extruded Aluminum Products
This standard is issued under the fixed designation D 3260; 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.
4
1. Scope 5.2 Cleaning Solution—An alkaline cleaner in the concen-
tration recommended by the manufacturer, usually 45 to 60 g/L
1.1 This test method covers the evaluation of the mortar and
(6 to 8 oz/gal) of water. The pH of the solution should be
acid resistance of clear protective coating factory applied to
between 11.4 and 12.2.
extruded aluminum substrates.
5.3 Lime—Building lime complying with Specification
1.2 The values stated in SI units are to be regarded as the
C 207.
standard. The values given in parentheses are for information
5.4 Neutralizing Solution—Prepare from a stable free-
only.
5
flowing, granular material having a chromate base as recom-
1.3 This standard does not purport to address all of the
mended by the supplier, usually at a concentration of 90 to 120
safety concerns, if any, associated with its use. It is the
g/L (12 to 16 oz/gal) of water.
responsibility of the user of this standard to establish appro-
5.5 Sand—Dry sand capable of passing through a 10-mesh
priate safety and health practices and determine the applica-
wire screen.
bility of regulatory limitations prior to use.
6. Test Panels
2. Referenced Documents
6.1 Panels of extruded aluminum alloy No. 6063-T5 with
2.1 ASTM Standards:
1
dimensions 150 by 75 by 6.3 mm (6 by 3 by ⁄4 in.) shall be
C 207 Specification for Hydrated Lime for Masonry Pur-
2
used for the test.
poses
D 823 Practices for Producing Films of Uniform Thickness
7. Procedure
3
of Paint, Varnish, and Related Products on Test Panels
7.1 Preparation of Test Panels:
3. Summary of Test Method 7.1.1 Buff the aluminum panels and remove the buffing
compound with an organic solvent.
3.1 Panels that have been buffed, cleaned, neutralized, and
7.1.2 Immersethepanelsincleaningsolution(5.2)for1hat
coated with the material being evaluated are exposed to freshly
a temperature of 93°C (200°F).
prepared mortar and to a hydrochloric acid solution.
7.1.3 Rinse the panels in tap water having a pH of 6.5 to 7.5
4. Significance and Use
until the surface is free of water break. Use reagent water for
rinsing if the pH of the tap water is outside the specified limits.
4.1 This test method will provide differentiation between
The panels shall be free from evidence of corrosion or surface
types of coatings for acid and motor resistance providing the
attack.
coating is applied in a uniform continuous film with a specified
7.1.4 Immerse the panels in neutralizing solution (5.4) at 24
film thickness.
6 1°C (75 6 2°F) for 30 s to neutralize any retained alkalinity
5. Reagents
and to promote adhesion of the applied coatings.
7.1.5 Rinse the panels in reagent water and allow them to
5.1 Acid—Ten volume percent solution of commercialgrade
dry a minimum of 1 h before coating.
hydrochloric acid (31.4 to 31.8 % HCl, 20°Bé) in distilled
7.2 Coating of Test Panels:
water.
7.2.1 Apply the coatings being evaluated to the test panels
in a uniform continuous film by automatic spray equipment in
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
accordance with Method A of Practices D 823.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.55 on Factory-Applied Coatings on Preformed Products.
Current edition approved May 10, 2001. Published July 2001. Originally
e1
published as D 3260 – 73. Last previous edition D 3260 – 82 (1996) .
2 4
Annual Book of ASTM Standards, Vol 04.01. Diversey No. 808 has been found satisfactory for this purpose.
3 5
Annual Book of ASTM Standards, Vol 06.01. Diversey No. 814 has been found satisfactory for this purpose.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D3260
7.2.2 For the mortar test, spray two panels on one side with 7.3.4 View the surface of the panels perpendicular to the
two or more full wet coats to produce a minimum dry film surface under a diffused light source providing a minimum
thickness of 15 µm (0.6 mil ) and two panels with one or more
light intensity at the surface of 2150 1x (200 fc). Examine for
full wet coats to produce a minimum dry film thickness of 7.5 blistering, peeling, lifting, crazing, flaking, or discoloration of
µm (0.3 mi).
the coating, and for corrosion of the coated part of the
7.2.3 For
...

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ASTM Standards  
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International Standards Organization (ISO)  
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ASTM Adjuncts  
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Significance and Use  
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Pictorial Standard D2200  
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6  
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6.2  
Thinning  
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Initial Samples  
6.3.1  
Thinning of Coating  
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6.3.3  
Heating of Coating  
6.4  
Weather Considerations  
7  
Drying  
7.1  
Low Temperature  
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High Temperature  
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Moisture  
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Wind  
7.5  
Coating Application  
8  
Residual Contaminants  
8.1  
Quality Assurance  
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Film Defects  
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Brush Application  
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Spray Application  
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Roller Application  
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4.2 Five methods have evolved because of differences in the practice of using visual standards and guides throughout the world, and the method of surface preparation employed. In Europe, the visual standards (Method A) are used as the primary means of assessing the degree of cleaning. In the U.S., the SSPC written definitions take precedence with the visual guides and reference photographs used as a supplement. The visual guides and reference photographs of Methods B, C, and D conform to the SSPC written definitions. There are written definitions for Method E, however, the visual guide for Method E does not contain a complete set of pictorials corresponding to each surface cleanliness definition.
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4.1 Laboratory measurement of application properties of architectural coatings generally employ a blade-type applicators that lay down films of highly uniform thickness. Applicators, such as brushes and rollers, typically apply films that lack uniformity due to variations in rheology, film build, flow and leveling properties resulting in the practical hiding of most paints being less than that measured on films applied with a blade-type applicator. This guide provides an indication of the actual application properties of the paint, as applied by a contractor or consumer.
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1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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