ASTM D3794-00

Standard Guide for Testing Coil Coatings (Withdrawn 2009)

SIGNIFICANCE AND USE
This guide represents a collection of pertinent ASTM test methods used within the coil coatings industry. In the past, coil coaters world wide depended on industry standards written by the National Coil Coaters Association. That association, working cooperatively with ASTM, will no longer issue new, nor update old, standards.
SCOPE
1.1 This guide covers procedures for testing coil coatings. The test methods included are listed in Table 1. Where more than one test method is listed for the same characteristic, no attempt is made to indicate superiority of one method over another. Selection of methods to be followed must be governed by the requirements in each individual case, together with agreement between the producer and user.  
1.2 This guide also refers to methods developed specifically for the Coil Industry by the National Coil Coaters Association.
1.3 The values stated in inch-pound 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.
WITHDRAWN RATIONALE
This guide covers procedures for testing coil coatings. Where more than one test method is listed for the same characteristic, no attempt is made to indicate superiority of one method over another. Selection of test methods to be followed must be governed by the requirements in each individual case, together with agreement between the producer and user.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, an Applications, this guide was withdrawn in March 2009 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Historical
• Publication Date: 09-Jun-2000
• Withdrawal Date: 08-Mar-2009
• ICS: 87.040 - Paints and varnishes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.53 - Coil Coated Metal

Relations

• Replaced By: ASTM D3794-13 - Standard Guide for Testing Coil Coatings
• Effective Date: 15-Mar-2013
• Referred By: ASTM D5796-20 - Standard Test Method for Measurement of Dry Film Thickness of Thin-Film Coil-Coated Systems by Destructive Means Using a Boring Device
• Effective Date: 10-Jun-2000
• Referred By: ASTM G195-22 - Standard Guide for Conducting Wear Tests Using a Rotary Platform Abraser
• Effective Date: 10-Jun-2000

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:D3794–00
Standard Guide for
Testing Coil Coatings
This standard is issued under the fixed designation D 3794; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 823 Practices for Producing Films of Uniform Thickness
of Paint, Varnish, and Related Products on Tests Panels
1.1 This guide covers procedures for testing coil coatings.
D 870 Practice for Testing Water Resistance of Coatings
The test methods included are listed in Table 1. Where more
Using Water Immersion
than one test method is listed for the same characteristic, no
D 968 Test Methods for Abrasion Resistance of Organic
attempt is made to indicate superiority of one method over
Coatings by Falling Abrasive
another. Selection of test methods to be followed must be
D 1005 Test Method for Measurement of Dry-Film Thick-
governed by the requirements in each individual case, together
ness of Organic Coatings Using Micrometers
with agreement between the producer and user.
D 1014 Practice for Conducting Exterior Exposure Tests of
1.2 The values stated in SI units are to be regarded as the
Paints on Steel
standard. The values given in parentheses are for information
D 1186 Test Methods for Nondestructive Measurement of
only.
Dry Film Thickness of Nonmagnetic Coatings Applied to
1.3 This standard does not purport to address all of the
a Ferrous Base
safety concerns, if any, associated with its use. It is the
D 1193 Specification for Reagent Water
responsibility of the user of this standard to establish appro-
D 1200 Test Method for Viscosity by Ford Viscosity Cup
priate safety and health practices and determine the applica-
D 1210 TestMethodforFinenessofDispersionofPigment-
bility of regulatory limitations prior to use.
Vehicle Systems by Hegman-Type Gage
2. Referenced Documents D 1212 Test Methods for Measurement of Wet Film Thick-
ness of Organic Coatings
2.1 ASTM Standards:
D 1308 Test Method for Effect of Household Chemicals on
B117 PracticeforOperatingofSaltSpray(Fog)Apparatus
Clear and Pigmented Organic Finishes
B 368 Test Method for Copper-Accelerated Acetic Acid-
D 1400 Test Method for Nondestructive Measurement of
Salt Spray (Fog) Testing (Cass Test)
DryFilmThicknessofNonconductiveCoatingsAppliedto
D 522 Test Methods for Mandrel Bend Test of Attached
a Nonferrous Metal Base
Organic Coatings
D 1474 Test Methods for Indentation Hardness of Organic
D 523 Test Methods for Specular Gloss
Coatings
D 610 Test Method for Evaluating Degree of Rusting on
D 1475 Test Method for Density of Paint,Varnish, Lacquer,
Painted Steel Surfaces
and Related Products
D 660 Test Method for Evaluating Degree of Checking
D 1654 Test Method for Evaluation of Painted or Coated
Exterior Paints
Specimens Subjected to Corrosive Environments
D 661 Test Method for Evaluating Degree of Cracking of
D 1729 Practice for Visual Appraisal of Colors and Color
Exterior Paints
Differences of Diffusely-Illuminated Opaque Materials
D 714 Test Method for Evaluating Degree of Blistering of
D 1735 Practice for Testing Water Resistance of Coatings
Paints
Using Water Fog Apparatus
D 822 Practice for Conducting Tests on Paint and Related
D 1823 Test Method for Apparent Viscosity of Plastisols
Coatings and Materials Using Filtered Open-Flame
and Organosols at High Shear Rates by ExtrusionViscom-
Carbon-Arc Apparatus
eter
D 1824 Test Method for Apparent Viscosity of Plastisols
and Organosols at Low Shear Rates by Brookfield Vis-
This guide is under the jurisdiction of ASTM Committee D01 on Paint and
cometer
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.53 on Coil Coated Metal. D 2092 Guide for Treatment of Zinc-Coated (Galvanized)
Current edition approved June 10, 2000. Published August 2000.
Annual Book of ASTM Standards, Vol 03.02.
Annual Book of ASTM Standards, Vol 02.05.
4 6
Annual Book of ASTM Standards, Vol 06.01. Annual Book of ASTM Standards, Vol 11.01.
5 7
Annual Book of ASTM Standards, Vol 06.02. Annual Book of ASTM Standards, Vol 08.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3794–00
Steel Surfaces for Painting D 4518 Test Methods for Measuring Static Friction of
Coating Surfaces
D 2196 Test Methods for Rheological Properties of Non-
D 4585 Practice for Testing Water Resistance of Coatings
Newtonian Materials by Rotational (Brookfield) Viscom-
Using Controlled Condensation
eter
D 4587 Practice for Conducting Tests on Paint and Related
D 2197 Test Method for Adhesion of Organic Coatings by
Coatings and Materials Using a Fluorescent UV-
Scrape Adhesion
Condensation Light- and Water-Exposure Apparatus
D 2244 Test Method for Calculation of Color Differences
D 5031 Practice for ConductingTests on Paints and Related
from Instrumentally Measured Color Coordinates
Coatings and Materials Using Enclosed Carbon-Arc Light
D 2247 PracticeforTestingWaterResistanceofCoatingsin
and Water Exposure Apparatus
100 % Relative Humidity
D 5178 Test Method for Mar Resistance of Organic Coat-
D 2248 Practice for Detergent Resistance of Organic Fin- 4
ings
ishes
D 5402 Practice for Assessing the Solvent Resistance of
D 2369 Test Method for Volatile Content of Coatings
Organic Coatings Using Solvent Rubs
D 2454 Practice for Determining the Effect of Overbaking D 5531 Guide for Preparation, Maintenance and Distribu-
on Organic Coatings tion of Physical Product Standards for Color and Geomet-
ric Appearance of Coatings
D 2697 Test Method for Volume Nonvolatile Matter in
D 5723 Practice for Determination of Chromium Treatment
Clear or Pigmented Coatings
Weight on Metal Substrates by X-Ray Fluorescence
D 2794 Test Method for Resistance of Organic Coatings to
D 5796 Test Method for Measurement of Dry Film Thick-
the Effects of Rapid Deformation (Impact)
ness of Thin Film Coil-Coated Systems by Destructive
D 2803 Guide for Testing Filiform Corrosion Resistance of
Means Using a Boring Device
Organic Coatings on Metal
D 5894 Practice for Cyclic Salt Fog-UV Exposure of
D 3003 Test Method for Pressure Mottling and Blocking
Painted Metal (Alternating Exposure in a Fog/Dry Cabinet
Resistance of Organic Coatings on Metal Substrates
and UV/Condensation Cabinet)
D 3134 Practice for Establishing Color and Gloss Toler-
D 6093 TestMethodforPercentVolumeNonvolatileMatter
ances
in Clear or Pigmented Coatings Using a Helium Gas
D 3170 Test Method for Chipping Resistance of Coatings
Pycnometer
D 3278 Test Methods for Flash Point of Liquids by Small
D 6491 Practice for Evaluation of Aging Resistance of
4 5
Scale Closed-Cup Apparatus
Prestressed Prepainted Metal in a Dry Heat Test
D 6492 Practice for Detection of Hexavalent Chromium On
D 3359 Test Methods for Measuring Adhesion by Tape
Zinc and Zinc/Aluminum Alloy Coated Steel
Test
E70 Test Method for pH of Aqueous Solutions with the
D 3361 Practice for Operating Light- and Water-Exposure
Glass Electrode
Apparatus (Unfiltered Open-Flame Carbon-Arc Type) for
E84 Test Method for Surface Burning Characteristics of
Testing Paint, Varnish, Lacquer, and Related Products
Building Materials
Using the Dew Cycle
E 284 Terminology of Appearance
D 3363 Test Method for Film Hardness by Pencil Test
E 308 Practice for Computing the Colors of Objects by
D 3960 Practice for Determining Volatile Organic Com-
Using the CIE System
pound (VOC) Content of Paints and Related Coatings
E 408 TestMethodsforTotalNormalEmittanceofSurfaces
D 4060 Test Method for Abrasion Resistance of Organic 11
Using Inspection-Meter Techniques
Coatings by the Taber Abraser
E 643 Test Method for Ball Punch Deformation of Metallic
D 4138 Test Method for Measurement of Dry Film Thick-
Sheet Material
ness of Protective Coating Systems by Destructive Means
E 903 Test Method for SolarAbsorptance, Reflectance, and
D 4141 PracticeforConductingAcceleratedOutdoorExpo- Transmittance of Materials Using Integrating Spheres
sure Tests of Coatings
E 1164 Practice for Obtaining Spectrophotometric Data for
Object-Color Evaluation
D 4145 Test Method for Coating Flexibility of Prepainted
E 1356 Test Method for Glass Transition Temperatures by
Sheet
Differential Scanning Calorimetry or Differential Thermal
D 4146 Test Method for Formability of Zinc-Rich Primer/
Analysis
Chromate Complex Coatings on Steel
E 1541 Practice for Specifying and Matching Color Using
D 4147 Practice for Applying Coil Coatings Using the
Wire-Wound Drawdown Bar
D 4212 Test Method for Viscosity by Dip-Type Viscosity
Discontinued; see 1999 Annual Book of ASTM Standards, Vol 06.01.
Cups
Annual Book of ASTM Standards, Vol 15.05.
D 4214 Test Methods for Evaluating Degree of Chalking of Annual Book of ASTM Standards, Vol 04.07.
Annual Book of ASTM Standards, Vol 15.03.
Exterior Paint Films
Annual Book of ASTM Standards, Vol 03.01.
D 4287 TestMethodforHigh-ShearViscosityUsingtheICI
Annual Book of ASTM Standards, Vol 12.02.
Cone/Plate Viscometer Annual Book of ASTM Standards, Vol 14.02.
D3794–00
the Colorcurve System 3. Terminology
E 1545 Test Method forAssignment of the Glass Transition
3.1 Definitions:
Temperature by Thermomechanical Analysis
3.1.1 coil coating—application of coatings or films to con-
E 1640 Test Method forAssignment of the Glass Transition
tinuous metal coil stock.
Temperature by Dynamic Mechanical Analysis
3.1.2 direct roller coat—coating with the applicator or
E 1808 Guide for Designing and ConductingVisual Experi-
4 coating roll revolving in the same direction as the strip.
ments
3.1.3 metal pretreatment—chemical treatment normally ap-
E 1918 Test Method for Measuring Solar Reflectance of
plied to the metal substrate prior to prime or finish coating.
Horizontal and Low-Sloped Surfaces in the Field
3.1.3.1 Discussion—The treatment is designed to react with
G7 Practice for Atmospheric Environmental Exposure
Testing of Nonmetallic Materials andmodifythemetalsubstratetoproduceasurfacesuitablefor
coating or adhesive bonding.
G60 Test Method for Conducting Cyclic Humidity Tests
G85 Practice for Modified Salt Spray (Fog) Testing
3.1.4 reverse roller coat—coating with the applicator or
G87 Practice for Conducting Moist SO Tests
coatingrollrevolvinginadirectionoppositetothatofthestrip.
G90 Practice for Performing Accelerated Outdoor Weath-
3.2 The definitions given in Terminology G113 are appli-
ering of Nonmetallic Materials Using Concentrated Natu-
cable to this guide.
ral Sunlight
G113 Terminology Relating to Natural and Artificial
4. Significance and Use
Weathering Tests of Nonmetallic Materials
4.1 This guide represents a collection of pertinent ASTM
G 151 Practice for Exposing Nonmetallic Materials in Ac-
test methods used within the coil coatings industry. In the past,
celerated Test Devices that Use Laboratory Light
15 coilcoatersworldwidedependedonindustrystandardswritten
Sources
by the National Coil Coaters Association. That association,
G 152 PracticeforOperatingOpenFlameCarbonArcLight
working cooperatively with ASTM, will no longer issue new,
Apparatus for Exposure of Nonmetallic Materials
nor update old, standards.
G 153 Practice for Operating Enclosed Carbon Arc Light
Apparatus for Exposure of Nonmetallic Materials
5. General Requirements
G 154 Practice for Operating Fluorescent Light Apparatus
for UV Exposure of Nonmetallic Materials
5.1 All standard tests shall be made at 25 6 3°C (77 6
G 155 Practice for Operating Xenon Arc Light Apparatus
25°F) and 50 6 5 % relative humidity, immediately after
for Exposure of Nonmetallic Materials
baking unless otherwise specified.
G 159 TablesforReferencesSolarSpectralIrradianceatAir
Mass 1.5: Direct Normal and Hemispherical for a 37°
6. Sampling
Tilted Surface
6.1 The number of samples per unit of production shall be
agreed upon between the producer and user.
Annual Book of ASTM Standards, Vol 14.04.
TABLE 1 List of Test Methods and Recommended Practices
Section ASTM Standard
Liquid Coatings Properties:
Viscosity: 7.1
Ford cup viscosity 7.1.2 D 1200
Zahn cup viscosity 7.1.2 D 4212
High-Shear extrusion viscometer 7.1.3 D 1823
Plastisol and organosol low-shear viscosity 7.1.4 D 1824
Brookfield-type viscometer 7.1.5 D 2196
Cone and Plate viscometer 7.1.6 D 4287
Weight Solids 7.2 D 2369
Volatile Content 7.2 D 2369
Volume Solids 7.3 D 2697, D 6093
Fineness of dispersion 7.4 D 1210
Density (weight per gallon) 7.5 D 1475
VOC Determination 7.6 D 3960
pH 7.7 E 70
Flash Point 7.8 D 3278
Metal Pretreatment:
Preparation of galvanized steel for painting 8.2 D 2092
Detecting Cr+6 8.3.1 D 6492
X-ray fluorescence, chrome determination 8.3.2 D 5723
Panel Preparation:
Wire-wound drawdown bars 9.4.1.1 D 4147
Blade film applicator 9.4.1.2 D 823
D3794–00
TABLE 1 Continued
Section ASTM Standard
Wet film thickness 9.5 D 1212
Material Properties of a Cured Coil Coating System: 10
Dry film thickness (DFT) 10.1 .
DFT, destructive methods 10.1.1 .
DFT, micrometer 10.1.1.1 D 1005
DFT, microscope 10.1.1.2 D 4138
DFT, boring method 10.1.1.3 D 5796
DFT, non-destructive methods 10.1.2 .
DFT, eddy current, non-ferrous base 10.1.2.1 D 1400
DFT, magnetic flux, ferrous base 10.1.2.2 D 1186
Color 10.2
Glossary of color 10.2.1 E 284
Preparation and control of color standards 10.2.1 D 5531
Color and gloss tolerances 10.2.1 D 3134
Conducting visual experiments 10.2.1 E 1808
Color differences by visual evaluation 10.2.2 .
Visual evaluation of color and color difference 10.2.2.1 D 1729
Color differences by instrumental evaluation 10.2.3 .
Color matching, color curve system 10.2.3 E 1541
CIE color difference 10.2.3 E 308
Obtaining spectral data 10.2.3 E 1164
Calculation of color differences 10.2.3 D 2244
Specular gloss measurement 10.3 D 523
Hardness 10.4
Pencil hardness 10.4.1 D 3363
Indentation hardness 10.4.2 D 1474
Flexibility 10.5 —
Impact resistance 10.5.2 D 2794
Mandrel bend 10.5.3 D 522
T bends 10.5.4 D 4145
Ball punch deformation 10.5.5 E 643
Draw test 10.5.6 D 4146
Adhesion: 10.6
Cross hatch tape adhesion 10.6.2 D 3359
Scrape adhesion 10.6.3 D 2197
Degree of Cure:
Glass transition TMA 10.7.2 E 1545
Glass transition, DMA 10.7.2 E 1640
Glass transition, DSC 10.7.2 E 1356
Solvent resistance 10.7.3 D 5402
Dry heat test 10.7.4 D 6491
Other Tests: 10.8
Pressure mottling/blocking resistance 10.8.1 D 3003
Effect of ove
...