ASTM D3260-01(2017)

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

SIGNIFICANCE AND USE
4.1 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.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-May-2017
• 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

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 (Reapproved 2017)
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 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 4. Significance and Use
4.1 This test method will provide differentiation between
1.1 This test method covers the evaluation of the mortar and
types of coatings for acid and motor resistance providing the
acid resistance of clear protective coating factory applied to
coating is applied in a uniform continuous film with a specified
extruded aluminum substrates.
film thickness.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Reagents
only.
5.1 Acid—Ten volume percent solution of commercial grade
1.3 This standard does not purport to address all of the
hydrochloric acid (31.4 to 31.8 % HCl, 20°Bé) in distilled
safety concerns, if any, associated with its use. It is the
water.
responsibility of the user of this standard to establish appro-
3
5.2 Cleaning Solution—An alkaline cleaner in the concen-
priate safety and health practices and determine the applica-
tration recommended by the manufacturer, usually 45 to 60 g/L
bility of regulatory limitations prior to use.
(6 to 8 oz/gal) of water. The pH of the solution should be
1.4 This international standard was developed in accor-
between 11.4 and 12.2.
dance with internationally recognized principles on standard-
5.3 Lime—Building lime complying with Specification
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- C207.
mendations issued by the World Trade Organization Technical
5.4 Neutralizing Solution—Prepare from a stable free-
4
Barriers to Trade (TBT) Committee.
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
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
D823 Practices for Producing Films of Uniform Thickness
6. Test Panels
of Paint, Varnish, and Related Products on Test Panels
6.1 Panels of extruded aluminum alloy No. 6063-T5 with
1
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
compound with an organic solvent.
1
7.1.2 Immerse the panels in cleaning solution (5.2) for 1 h at
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, and Applications and is the direct responsibility of
a temperature of 93°C (200°F).
Subcommittee D01.55 on Factory Applied Coatings on Preformed Products.
7.1.3 Rinse the panels in tap water having a pH of 6.5 to 7.5
Current edition approved June 1, 2017. Published June 2017. Originally
until the surface is free of water break. Use reagent water for
approved in 1982. Last previous edition approved in 2011 as D3260 – 01 (2011).
DOI: 10.1520/D3260-01R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Diversey No. 808 has been found satisfactory for this purpose.
4
the ASTM website. 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 − 01 (2017)
rinsing if the pH of the tap water is outside the specified limits. 7.3.2 Apply the mortar to the top and bottom areas of the
The panels shall be free from evidence of corrosion or surface test panels and, without drying, immediately expose them for 7
attack. days at 95 to 98 % relative humidity at a temperature of 21 6
7.1.4 Immerse the panels in neutralizing solution (5.4) at 24 2°C (70 6 3.5°F) in an automatically controlled cabinet.
6 1°C (75 6 2°F) for 30 s to neutralize any retained alkalinity 7.3.3 At the end of 7 days take the panels from the test
and to promote adhesion of the applied c
...

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: D3260 − 01 (Reapproved 2011) D3260 − 01 (Reapproved 2017)
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 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
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.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C207 Specification for Hydrated Lime for Masonry Purposes
D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
3. Summary of Test Method
3.1 Panels that have been buffed, cleaned, neutralized, and coated with the material being evaluated are exposed to freshly
prepared mortar and to a hydrochloric acid solution.
4. Significance and Use
4.1 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.
5. Reagents
5.1 Acid—Ten volume percent solution of commercial grade hydrochloric acid (31.4 to 31.8 % HCl, 20°Bé) in distilled water.
3
5.2 Cleaning Solution—An alkaline cleaner in the concentration recommended by the manufacturer, usually 45 to 60 g/L (6
to 8 oz/gal) of water. The pH of the solution should be between 11.4 and 12.2.
5.3 Lime—Building lime complying with Specification C207.
4
5.4 Neutralizing Solution—Prepare from a stable free-flowing, granular material having a chromate base as recommended by
the supplier, usually at a concentration of 90 to 120 g/L (12 to 16 oz/gal) of water.
5.5 Sand—Dry sand capable of passing through a 10-mesh wire screen.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.55 on Factory Applied Coatings on Preformed Products.
Current edition approved June 1, 2011June 1, 2017. Published June 2011June 2017. Originally approved in 1982. Last previous edition approved in 20052011 as
D3260 – 01 (2005).(2011). DOI: 10.1520/D3260-01R11.10.1520/D3260-01R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
3
Diversey No. 808 has been found satisfactory for this purpose.
4
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 − 01 (2017)
6. Test Panels
1
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 used for
the test.
7. Procedure
7.1 Preparation of Test Panels:
7.1.1 Buff the aluminum panels and remove the buffing compound with an organic solvent.
7.1.2 Immerse the panels in cleaning solution (5.2) for 1 h at a temperature of 93°C (200°F).
7.1.3 Rinse the panels in tap water having a pH of 6.5 to 7.5 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 attack.
7.1.4 Immerse the panels in neutralizing solution (5.4) at 24 6 1°C (75 6 2°F) for 30 s to neutralize any retained alka
...