ASTM D2486-06(2016)

Standard Test Methods for Scrub Resistance of Wall Paints

SIGNIFICANCE AND USE
4.1 Paints often become soiled, especially near doorways, windows, and in work and play areas. These test methods cover the determination of the relative resistance of different paints to erosion when repeatedly scrubbed during the life of the paint.  
4.2 Test Method D4213 is a similar scrub resistance test using a weight-loss technique and reporting volumetric film erosion rates.  
4.3 Test Method A measures scrub resistance by the traditional cycles-to-failure concept. Poor correlation in scrub testing can be attributable to among other things variations in the stiffness of the brush bristles, condition of washability tester, application and drying conditions. In an attempt to improve reproducibility, Test Method B has been developed.
SCOPE
1.1 These test methods cover a procedure for determining the resistance of wall paints to erosion caused by scrubbing, referred to herein after as “scrub resistance.”  
1.2 Two test methods are covered as follows:  
1.2.1 Test Method A—Cycles-to-failure obtained on test paint.  
1.2.2 Test Method B—Ratio expressed as a percentage of cycles-to-failure obtained on the test paint to that obtained on a concurrent run with a known reference paint.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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: 30-Nov-2016
• ICS: 87.040 - Paints and varnishes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.42 - Architectural Coatings

Relations

• Replaces: ASTM D2486-06(2012)e1 - Standard Test Methods for Scrub Resistance of Wall Paints
• Effective Date: 01-Dec-2016
• Replaced By: ASTM D2486-17 - Standard Test Methods for Scrub Resistance of Wall Paints
• Effective Date: 01-Jun-2017
• Referred By: ASTM C744-21 - Standard Specification for Prefaced Concrete and Calcium Silicate Masonry Units
• Effective Date: 01-Dec-2016
• Referred By: ASTM D6900-10(2020) - Standard Test Method for Wet Adhesion of Latex Paints to a Gloss Alkyd Enamel Substrate
• Effective Date: 01-Dec-2016
• Referred By: ASTM D5324-16(2022) - Standard Guide for Testing Water-Borne Architectural Coatings
• Effective Date: 01-Dec-2016
• Referred By: ASTM D6763-16(2022) - Standard Guide for Testing Exterior Wood Stains and Clear Water Repellents
• Effective Date: 01-Dec-2016
• Referred By: ASTM D5146-10(2019) - Standard Guide to Testing Solvent-Borne Architectural Coatings
• Effective Date: 01-Dec-2016
• Referred By: ASTM F793/F793M-20 - Standard Classification of Wall Coverings by Use Characteristics
• Effective Date: 01-Dec-2016
• Referred By: ASTM D6736-08(2019) - Standard Test Method for Burnish Resistance of Latex Paints
• Effective Date: 01-Dec-2016
• Referred By: ASTM E1797-12(2017)e1 - Standard Specification for Reinforced Liquid Coating Encapsulation Products for Leaded Paint in Buildings
• Effective Date: 01-Dec-2016
• Referred By: ASTM D4213-08(2016) - Standard Test Method for Scrub Resistance of Paints by Abrasion Weight Loss
• Effective Date: 01-Dec-2016
• Referred By: ASTM D3730-17(2022) - Standard Guide for Testing High-Performance Interior Architectural Wall Coatings
• Effective Date: 01-Dec-2016
• Referred By: ASTM E1795-20a - Standard Specification for Non-Reinforced Liquid Coating Encapsulation Products for Leaded Paint in Buildings
• Effective Date: 01-Dec-2016
• Referred By: ASTM D8424-21 - Standard Guide for Retroreflective Composite Optics Laboratory Procedures
• Effective Date: 01-Dec-2016

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: D2486 − 06 (Reapproved 2016)
Standard Test Methods for
1
Scrub Resistance of Wall Paints
This standard is issued under the fixed designation D2486; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
1. Scope 12.7 wide by 0.25-mm thick ( ⁄2-in. by 10-mil) shim and held
in place on a drawdown plate in a washability machine by
1.1 These test methods cover a procedure for determining
means of a gasketed frame. The coated panel is then scrubbed
the resistance of wall paints to erosion caused by scrubbing,
with a bristle brush and an abrasive scrub medium until the
referred to herein after as “scrub resistance.”
paint film is removed in one continuous thin line across the
1.2 Two test methods are covered as follows:
shim.
1.2.1 Test Method A—Cycles-to-failure obtained on test
3.2 InTestMethodB,thetestpaintandareferencepaintare
paint.
applied simultaneously perpendicular to the length of the black
1.2.2 Test Method B—Ratio expressed as a percentage of
plastic panel.After curing, the coated panel is placed over two
cycles-to-failure obtained on the test paint to that obtained on
1
12.7 by 0.25-mm ( ⁄2-in. by 10-ml) shims that are positioned
a concurrent run with a known reference paint.
under each coating. The coatings are then scrubbed with a
1.3 The values stated in SI units are to be regarded as the
bristle brush and an abrasive scrub medium until each paint
standard. The values given in parentheses are for information
film is removed in one continuous thin line across its own
only.
shim.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Paints often become soiled, especially near doorways,
priate safety and health practices and determine the applica-
windows,andinworkandplayareas.Thesetestmethodscover
bility of regulatory limitations prior to use.
thedeterminationoftherelativeresistanceofdifferentpaintsto
erosion when repeatedly scrubbed during the life of the paint.
2. Referenced Documents
4.2 Test Method D4213 is a similar scrub resistance test
2
2.1 ASTM Standards:
using a weight-loss technique and reporting volumetric film
D3924 Specification for Environment for Conditioning and
erosion rates.
Testing Paint, Varnish, Lacquer, and Related Materials
3
4.3 Test Method A measures scrub resistance by the tradi-
(Withdrawn 2016)
tional cycles-to-failure concept. Poor correlation in scrub
D4213 Test Method for Scrub Resistance of Paints by
testing can be attributable to among other things variations in
Abrasion Weight Loss
the stiffness of the brush bristles, condition of washability
3. Summary of Test Method tester, application and drying conditions. In an attempt to
improve reproducibility, Test Method B has been developed.
3.1 In Test Method A, the test paint is applied to a black
plastic panel. After curing, the coated panel is placed over a
5. Apparatus
5.1 Straight Line Washability Machine.
1
These test methods are under the jurisdiction of ASTM Committee D01 on
5.1.1 Accessory Apparatus: (see Figs. 1 and 2).
Paint and Related Coatings, Materials, and Applications and are the direct
5.1.1.1 Nylon Bristle Brush and Accessories, (total weight
responsibility of Subcommittee D01.42 on Architectural Coatings.
454 6 10 g).
Current edition approved Dec. 1, 2016. Published December 2016. Originally
ɛ1
7
approved in 1966. Last previous edition approved in 2012 as D2486 – 06 (2012) .
5.1.1.2 Drawdown Plate, 454 by 165 by 6.3 mm (17 ⁄8 by
DOI: 10.1520/D2486-06R16.
1 1
6 ⁄2 by ⁄4 in.).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
5.1.1.3 Brass Shims, 12.7- by 0.25-mm ( ⁄2-in. by 10-mils).
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Its length can be fitted to the width of the drawdown plate.
the ASTM website.
3
5.2 Film Applicator, having 0.18-mm (7-mil) clearance and
The last approved version of this historical standard is referenced on
1 1
www.astm.org. 6.25-mm ( ⁄4-in.) edge and width of 135 mm (5 ⁄4-in.).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2486 − 06 (2016)
FIG. 2 Accessory Apparatus for Scrub Test
FIG. 1 Accessory Apparatus for Scrub Test
grams
A
Water, distilled or deionized 49.4
5
...

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.
´1
Designation: D2486 − 06 (Reapproved 2012) D2486 − 06 (Reapproved 2016)
Standard Test Methods for
1
Scrub Resistance of Wall Paints
This standard is issued under the fixed designation D2486; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
ε NOTE—Footnotes in 6.3.1 were editorially updated in February 2012.
1. Scope
1.1 These test methods cover a procedure for determining the resistance of wall paints to erosion caused by scrubbing, referred
to herein after as “scrub resistance.”
1.2 Two test methods are covered as follows:
1.2.1 Test Method A—Cycles-to-failure obtained on test paint.
1.2.2 Test Method B—Ratio expressed as a percentage of cycles-to-failure obtained on the test paint to that obtained on a
concurrent run with a known reference paint.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials (Withdrawn
3
2016)
D4213 Test Method for Scrub Resistance of Paints by Abrasion Weight Loss
3. Summary of Test Method
3.1 In Test Method A, the test paint is applied to a black plastic panel. After curing, the coated panel is placed over a 12.7 wide
1
by 0.25-mm thick ( ⁄2-in. by 10-mil) shim and held in place on a drawdown plate in a washability machine by means of a gasketed
frame. The coated panel is then scrubbed with a bristle brush and an abrasive scrub medium until the paint film is removed in one
continuous thin line across the shim.
3.2 In Test Method B, the test paint and a reference paint are applied simultaneously perpendicular to the length of the black
1
plastic panel. After curing, the coated panel is placed over two 12.7 by 0.25-mm ( ⁄2-in. by 10-ml) shims that are positioned under
each coating. The coatings are then scrubbed with a bristle brush and an abrasive scrub medium until each paint film is removed
in one continuous thin line across its own shim.
4. Significance and Use
4.1 Paints often become soiled, especially near doorways, windows, and in work and play areas. These test methods cover the
determination of the relative resistance of different paints to erosion when repeatedly scrubbed during the life of the paint.
4.2 Test Method D4213 is a similar scrub resistance test using a weight-loss technique and reporting volumetric film erosion
rates.
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.42 on Architectural Coatings.
Current edition approved Feb. 1, 2012Dec. 1, 2016. Published February 2012December 2016. Originally approved in 1966. Last previous edition approved in 20062012
ɛ1
as D2486 – 06. 06 (2012) . DOI: 10.1520/D2486-06R12E01.10.1520/D2486-06R16.
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’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2486 − 06 (2016)
4.3 Test Method A measures scrub resistance by the traditional cycles-to-failure concept. Poor correlation in scrub testing can
be attributable to among other things variations in the stiffness of the brush bristles, condition of washability tester, application and
drying conditions. In an attempt to improve reproducibility, Test Method B has been developed.
5. Apparatus
5.1 Straight Line Washability Machine.Straight Line Washability Machine.
5.1.1 Accessory Apparatus: (see Figs. 1 and 2).
5.1.1.1 Nylon Bristl
...