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ASTM D3260-01(2005)

(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

SIGNIFICANCE AND USE
This test method will provide differentiation between types of coatings for acid and motor resistance providing the coating is applied in a uniform continuous film with a specified film thickness.
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
14-May-2005
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 D3260-01 - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
Effective Date
15-May-2005
Replaced By
ASTM D3260-01(2011) - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
Effective Date
01-Jun-2011
Referred By
ASTM D3451-06(2017) - Standard Guide for Testing Coating Powders and Powder Coatings
Effective Date
15-May-2005

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ASTM D3260-01(2005) - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum ProductsASTM D3260-01(2005) - Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products
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ASTM D3260-01(2005) - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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(Reapproved2005)
Standard Test Method for
Acid and Mortar Resistance of Factory-Applied Clear
Coatings on Extruded Aluminum Products
This standard is issued under the fixed designation D3260; 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 5. Reagents
1.1 This test method covers the evaluation of the mortar and 5.1 Acid—Ten volume percent solution of commercial
acid resistance of clear protective coating factory applied to grade hydrochloric acid (31.4 to 31.8 % HCl, 20°Bé) in
extruded aluminum substrates. distilled water.
1.2 The values stated in SI units are to be regarded as the 5.2 Cleaning Solution—An alkaline cleaner in the concen-
standard. The values given in parentheses are for information tration recommended by the manufacturer, usually 45 to 60 g/L
only. (6 to 8 oz/gal) of water. The pH of the solution should be
1.3 This standard does not purport to address all of the between 11.4 and 12.2.
safety concerns, if any, associated with its use. It is the 5.3 Lime—Building lime complying with Specification
responsibility of the user of this standard to establish appro- C207.
priate safety and health practices and determine the applica- 5.4 Neutralizing Solution—Prepare from a stable free-
bility of regulatory limitations prior to use. flowing, granular material having a chromate base as recom-
mended by the supplier, usually at a concentration of 90 to 120
2. Referenced Documents
g/L (12 to 16 oz/gal) of water.
2.1 ASTM Standards:
5.5 Sand—Dry sand capable of passing through a 10-mesh
C207 Specification for Hydrated Lime for Masonry Pur- wire screen.
poses
6. Test Panels
D823 Practices for Producing Films of Uniform Thickness
of Paint, Varnish, and Related Products on Test Panels 6.1 Panels of extruded aluminum alloy No. 6063-T5 with
dimensions 150 by 75 by 6.3 mm (6 by 3 by ⁄4 in.) shall be
3. Summary of Test Method
used for the test.
3.1 Panels that have been buffed, cleaned, neutralized, and
7. Procedure
coated with the material being evaluated are exposed to freshly
prepared mortar and to a hydrochloric acid solution. 7.1 Preparation of Test Panels:
7.1.1 Buff the aluminum panels and remove the buffing
4. Significance and Use
compound with an organic solvent.
4.1 This test method will provide differentiation between 7.1.2 Immersethepanelsincleaningsolution(5.2)for1hat
types of coatings for acid and motor resistance providing the
a temperature of 93°C (200°F).
coating is applied in a uniform continuous film with a specified 7.1.3 Rinse the panels in tap water having a pH of 6.5 to 7.5
film thickness.
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.
The panels shall be free from evidence of corrosion or surface
This test method is under the jurisdiction of ASTM Committee D01 on Paint
attack.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.55 on Factory Applied Coatings on Preformed Products.
7.1.4 Immerse the panels in neutralizing solution (5.4)at24
Current edition approved May 15, 2005. Published June 2005. Originally
6 1°C (75 6 2°F) for 30 s to neutralize any retained alkalinity
approved in 1982. Last previous edition approved in 2001 as D3260 – 01. DOI:
and to promote adhesion of the applied coatings.
10.1520/D3260-01R05.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Diversey No. 808 has been found satisfactory for this purpose.
the ASTM website. Diversey No. 814 has been found satisfactory for this purpose.
...

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ASTM Adjuncts  
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Significance and Use  
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Preparation for Inspection  
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Pictorial Standard D2200  
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6.3.3  
Heating of Coating  
6.4  
Weather Considerations  
7  
Drying  
7.1  
Low Temperature  
7.2  
High Temperature  
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Moisture  
7.4  
Wind  
7.5  
Coating Application  
8  
Residual Contaminants  
8.1  
Quality Assurance  
8.2  
Film Defects  
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Brush Application  
8.3  
Spray Application  
8.4  
Roller Application  
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4.1 The appearance of the various degrees of dry and wet abrasive blast cleaning, hand and power tool cleaning, and water jetting are influenced by the initial rust grades of the steel being cleaned and/or the type and condition of the coating on the existing steel. The standards and guides aid visually in judging and evaluating the degree of rusting and/or paint deterioration before cleaning and the degree of cleaning of steel surfaces prior to painting.  
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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1.1 The visual surface preparation guides and standards consist of a series of color prints available as separate publications. Five different sets of photographs are described in this standard, designated as Method A (ISO/Swedish Standard2) and Methods B through E (SSPC Guides and Reference Photographs3). The methods differ in the depiction of the initial surface, in the definition and depiction of the cleaning conditions, and in the number of cleaning methods included. Because of these differences, the specifier should state which guide to use.  
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