ASTM D7804-12
(Test Method)Standard Test Method for Fiber Shedding of Paint Roller Covers
Standard Test Method for Fiber Shedding of Paint Roller Covers
SIGNIFICANCE AND USE
3.1 fibers that are released during painting can lead to a finish that is aesthetically unacceptable.
SCOPE
1.1 This test method describes a procedure for determining the amount of releasable fibers transferred from a paint roller cover to a surface being painted.
1.2 This test method is applicable to pile fabric paint roller covers.
1.3 Because both the application and panel evaluation are subjective, this test method should be used only for comparative testing within one facility using one operator for each set of applications, as the end result assigned by different facilities may not agree.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5 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. Some specific hazards statements are given in Section 7 on Hazards.
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Designation: D7804 − 12
Standard Test Method for
Fiber Shedding of Paint Roller Covers
This standard is issued under the fixed designation D7804; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 5.2 Paint Tray—suitable for the paint roller cover being
tested.
1.1 This test method describes a procedure for determining
the amount of releasable fibers transferred from a paint roller
6. Materials
cover to a surface being painted.
6.1 Test Paint—commercially available semi-gloss or gloss
1.2 This test method is applicable to pile fabric paint roller
paint, identified as to type, product number, and color. Paint to
covers.
be mixed to a uniform consistency. Results may vary when
1.3 Because both the application and panel evaluation are
using different paint types.
subjective, this test method should be used only for compara-
6.2 Sealed Test Paper—tominimizeabsorptionoftestpaint,
tive testing within one facility using one operator for each set
of applications, as the end result assigned by different facilities which allows formation of paint film. Sections measuring 28
in. (711.2 mm) wide by 20 in. (508 mm) long and have a
may not agree.
minimum 10-mil thickness with a basis weight of 50 lb/Mft
1.4 The values stated in inch-pound units are to be regarded
(250 g/m ).
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
6.3 Tack Cloth—commercially prepared cloth designed to
and are not considered standard. remove dust and lint.
1.5 This standard does not purport to address all of the
6.4 Lighted Magnifying Glass—with 5× magnification.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
7. Procedure
priate safety and health practices and determine the applica-
7.1 All tests are to be conducted in controlled environment.
bility of regulatory limitations prior to use. Some specific
hazards statements are given in Section 7 on Hazards.
7.2 Prepare a clean, dry paint tray by wiping clean with a
tack cloth to remove all foreign material. Wipe paper surface
2. Summary of Test Method
and surrounding area with tack cloth also.
2.1 The paint roller cover that is to be evaluated is used to
7.3 Secure the two sections of sealed test paper to a flat
paint a section of sealed test paper. After the paint film has
vertical surface creating a 28 by 40 in. (711.2 by 1.016 mm)
dried, the fibers are counted.
test surface.
3. Significance and Use
7.4 Pour fresh paint into tray. Depth of paint to be the same
3.1 fibers that are released during painting can lead to a
as the pile height of the paint roller covers being tested. For
finish that is aesthetically unacceptable.
1 1
example, ⁄2 in. (12.7 mm) pile height cover would use ⁄2 in.
(12.7 mm) of paint in tray. Do not use paint that has been
4. Test Specimen
exposed to fibers.
4.1 Threeidenticalpaintrollercovers,9by1.5in.(228.6by
38.1 mm) diameter core. 7.5 Place the paint roller cover on the frame.
5. Apparatus 7.6 Load the paint roller cover by using twenty back and
forthstrokes,tenstrokestotalthatgointothepainttraywellto
5.1 Paint Roller Frame—designed for the paint roller cover
loadthepaint.Finishwithfourbackandforthstrokes,twototal
being tested.
strokes that even out the paint on the ramp of the tray, not
going into the paint well. The paint roller cover may require
This test method is under the jurisdiction of ASTM Committee D01 on Paint
hand rotation to achiever a uniform loading.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.61 on Paint Application Tools.
7.7 Roll out the paint roller cover on the sealed test paper
Current edition approved June 1, 2012. Published September 2012. DOI:
10.1520/D7804-12. using the pattern shown in Fig. 1. Care should be taken to
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7804 − 12
7.12 Circle and count each fiber (only lint) that is observed
in the dried paint film over the entire painted surface with a
magnifying glass with 5× power and fluorescent light. Record
the results. See Fig. 2 and Fig. 3, magnified to show detail.
7.13 The results will be recorded as number of fibers.
8. Calculation or Interpretation of Results
8.1 Average the three results obtained in 7.13.
FIG. 1 Roll Out Stroke Pattern 9. Precision and Bias
9.1 The precision of this test method is based on an
interlaboratory study of D7804, Test Method for Fiber Shed-
ding of Paint Roller Covers, conducted in 2006. Seven
laboratories participated in this project, testing two different
typesofpaintrollercovers.Datafromonelaboratorycouldnot
be used in the calculation of precision. Every “test result”
represents an individual determination. The laboratories ob-
tained three replicated test results for each material.
9.1.1 Repeatability—Two test results obtained within one
laboratory shall be judged not equivalent if they differ by more
than the “r” valu
...
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