ASTM D2454-08

Standard Practice for Determining the Effect of Overbaking on Organic Coatings

SIGNIFICANCE AND USE
Most coatings are designed for a specific baking time and temperature. For a variety of reasons (line stoppages, rerouting back through ovens, oven overheating, etc.) the prescribed time or temperature, or both, of the bake is often exceeded. This practice has been found to be useful in evaluating the effects of overbakes on coatings.
SCOPE
1.1 This practice covers the determination of the time-temperature effect of overbaking on the physical and chemical properties of organic coatings.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7.

General Information

• Status: Historical
• Publication Date: 31-May-2008
• ICS: 87.020 - Paint coating processes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.27 - Accelerated Testing

Relations

• Replaces: ASTM D2454-95(2002) - Standard Practice for Determining the Effect of Overbaking on Organic Coatings
• Effective Date: 01-Jun-2008
• Replaced By: ASTM D2454-14 - Standard Practice for Determining the Effect of Overbaking on Organic Coatings
• Effective Date: 01-Feb-2014
• Referred By: ASTM D3451-06(2017) - Standard Guide for Testing Coating Powders and Powder Coatings
• Effective Date: 01-Jun-2008
• Referred By: ASTM D3794-22 - Standard Guide for Testing Coil Coatings
• Effective Date: 01-Jun-2008
• Referred By: ASTM D3322-23 - Standard Practice for Testing Primers and Primer Surfacers Over Preformed Metal
• Effective Date: 01-Jun-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2454 − 08
StandardPractice for
1
Determining the Effect of Overbaking on Organic Coatings
This standard is issued under the fixed designation D2454; 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 D1640 Test Methods for Drying, Curing, or Film Formation
of Organic Coatings at Room Temperature
1.1 This practice covers the determination of the time-
D1729 Practice for Visual Appraisal of Colors and Color
temperature effect of overbaking on the physical and chemical
Differences of Diffusely-Illuminated Opaque Materials
properties of organic coatings.
D1730 Practices for Preparation of Aluminum and
1.2 The values stated in SI units are to be regarded as
Aluminum-Alloy Surfaces for Painting
standard. No other units of measurement are included in this
D1731 Practices for Preparation of Hot-DipAluminum Sur-
standard.
faces for Painting
1.3 This standard does not purport to address all of the
D2092 Guide for Preparation of Zinc-Coated (Galvanized)
3
safety concerns, if any, associated with its use. It is the Steel Surfaces for Painting (Withdrawn 2008)
responsibility of whoever uses this standard to consult and
D2197 Test Method for Adhesion of Organic Coatings by
establish appropriate safety and health practices and deter- Scrape Adhesion
mine the applicability of regulatory limitations prior to use.
D2201 Practice for Preparation of Zinc-Coated and Zinc-
Specific hazard statements are given in Section 7. Alloy-Coated Steel Panels for Testing Paint and Related
Coating Products
2. Referenced Documents D2244 Practice for Calculation of Color Tolerances and
2
Color Differences from Instrumentally Measured Color
2.1 ASTM Standards:
Coordinates
D522 Test Methods for Mandrel Bend Test of Attached
D2794 Test Method for Resistance of Organic Coatings to
Organic Coatings
the Effects of Rapid Deformation (Impact)
D523 Test Method for Specular Gloss
D3359 Test Methods for Measuring Adhesion by Tape Test
D609 Practice for Preparation of Cold-Rolled Steel Panels
D3363 Test Method for Film Hardness by Pencil Test
for Testing Paint, Varnish, Conversion Coatings, and
D7091 Practice for Nondestructive Measurement of Dry
Related Coating Products
Film Thickness of Nonmagnetic Coatings Applied to
D823 Practices for Producing Films of Uniform Thickness
Ferrous Metals and Nonmagnetic, Nonconductive Coat-
of Paint, Varnish, and Related Products on Test Panels
ings Applied to Non-Ferrous Metals
D1005 Test Method for Measurement of Dry-Film Thick-
E805 Practice for Identification of Instrumental Methods of
ness of Organic Coatings Using Micrometers
Color or Color-Difference Measurement of Materials
D1308 Test Method for Effect of Household Chemicals on
Clear and Pigmented Organic Finishes
3. Terminology
D1400 TestMethodforNondestructiveMeasurementofDry
3.1 Definitions:
Film Thickness of Nonconductive Coatings Applied to a
3
3.1.1 overbaking, n—an exposure of the coating to a mod-
Nonferrous Metal Base (Withdrawn 2006)
erately higher temperature or to a longer period of baking, or
both,thanrecommendedbythemanufacturerofthecoatingfor
normal curing.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
3.1.1.1 Discussion—This condition is in contrast to “heat
Related Coatings, Materials, and Applications and is the direct responsibility of
resistance” which is a parameter relating to the service life of
Subcommittee D01.27 on Accelerated Testing.
CurrenteditionapprovedJune1,2008.PublishedJuly2008.Originallyapproved
a coating.
in 1966. Last previous edition approved in 2002 as D2454 – 95 (2002). DOI:
10.1520/D2454-08.
4. Summary of Practice
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
4.1 Four panels are prepared and baked at the schedule
Standards volume information, refer to the standard’s Document Summary page on
normally recommended for the coating. Two of the panels are
the ASTM website.
3
then removed and the remaining two are subjected to an
The last approved version of this historical standard is referenced on
www.astm.org. additional overbake in which the time and temperature are
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D2454 − 08
mutually agreed upon between the purchaser and the seller. this film thickness where necessary due to the nature of the
The sets of panels, after a suitable conditioning interval, are coating material (Note 1). Manual spra
...

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:D2454–95(Reapproved 2002) Designation:D2454–08
Standard Practice for
1
Determining the Effect of Overbaking on Organic Coatings
This standard is issued under the fixed designation D 2454; 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 practice covers the determination of the time-temperature effect of overbaking on the physical and chemical properties
of organic coatings.
1.2
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of
regulatory limitations prior to use. Specific hazard statements are given in Section 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D 522 Test Methods for Mandrel Bend Test of Attached Organic Coatings
D 523 Test Method for Specular Gloss
D 609 Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related
Coating Products
D 823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
D 1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
D1186Test Methods for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous
2
Base
D 1308 Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes
D 1400 Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a
Nonferrous Metal Base
D 1640 Test Methods for Drying, Curing, or Film Formation of Organic Coatings at Room Temperature
D 1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
D 1730 Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting
D 1731 Practices for Preparation of Hot-Dip Aluminum Surfaces for Painting
D 2092 Guide for Preparation of Zinc-Coated (Galvanized) Steel Surfaces for Painting
D 2197 Test Method for Adhesion of Organic Coatings by Scrape Adhesion
D 2201 Practice for Preparation of Zinc-Coated and Zinc-Alloy-Coated Steel Panels for Testing Paint and Related Coating
Products
2
D 2244Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates
Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D 2794 Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
D 3359 Test Methods for Measuring Adhesion by Tape Test
2
D 3363Test Method for Film Hardness by Pencil Test Test Method for Film Hardness by Pencil Test
D 7091 Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic CoatingsApplied to Ferrous Metals
and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals
E 805 Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
Current edition approved Nov. 10, 1995. Published January 1996. Originally published as D2454–66T. Last previous edition D2454–91.
Current edition approved June 1, 2008. Published July 2008. Originally approved in 1966. Last previous edition approved in 2002 as D 2454 – 95 (2002).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
, Vol 06.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D2454–08
3. Terminology
3.1 Definition:
3.1.1 overbaking, n—an exposure of the coating to a moderately higher temperature or to a longer period of baking, or both,
than recommended by the manufacturer of the coating for normal curi
...