2024年6月5日发(作者：似如馨)
GMY35OM-ENGL 1999 -
I
9006379 OOL45b4 I,82 I
I
I
GENERAL MOTORS ENGINEERING STANDARDS Materials and Processes - Paint
PAINTED PART PERFORMANCE REQUIREMENTS
THE B CODES ARE SCHEDULED FOR DELETION BY 1 JANUARY 2001; DO NOT USE THEM
ON NEW APPLICATIONS
GM4350M
5 TESTS.
B96. Normally applicable to chassis and/or underhood
parts. Note: Do not use on new specifications.
5.1 Unless otherwise specified, painted parts shall be sub-
jected to the testing after a minimum aging period of 72 h
aging period
C24. Normally applicable to interior car parts having
following the baking or drying cycle. A shorter
may be used, provided it is recognized that this represents a
metallic substrate.
more severe condition of test and that results obtained at dif-
CO. Normally applicable to interior car parts having plastic
ferent aging times under 72 h are not a good basic for
comparing the relative performance characteristics of paint fm-
or other nonmetallic substrates.
ishes.
4 BASIC REQUIREMENTS.
4.1 RESTRICTED AND REPORTABLE SUBSTANCES
FOR PARTS (GMW3059). All materials supplied to this
specification must comply with the requirements listed in
5.2 QUALITY CONTROL TESTS. Quality control tests are
routine tests which are to be run on production parts as a
means of insuring part quality and/or process quality.
Frequency of these tests shall be based on a statistical sam-
pling plan determined by supplier. Tests are to be run in
accordance with class requirements as designated on the part
drawing and in Table 1. These tests shall also be performed
during the initial qualification process for paint materials.
5.2.1 Tape Adhesion Test shall be conducted according to
GM9071P
GMW3059, Restricted and Reportable Substances for
Parts.
4.2 PAINTED PARTS PERFORMANCE. Parts furnished to
this standard shall meet the test requirements shown in Table 1
for the class of finish specified.
TABLE I- QUALITY CONTROL TESTS
C24 co
A336
Al68 A96 A0 B336 (r) B168 (r) B96 (r)
Test Class
Tape Adhesion
(a) (a) (a) (a> (4 (a) (a) (a> (a)
(GM9071P)
Humidity & Tape 96&(b) 96&(b) 96 h (b) 96 h (b) 96 h (b) 24 h (b) 24 h (b) 24(h)(b) 24 h (b)
c
C
Adhesion (GM4465P &
C
(c) (cl
Cc)
(c) (cl (c)
GM907 1P)
Neutral Salt Spray & 336 h (d) 168 h (d) 96 h (d)
Corrosion Creepback
69 (b)
te) W te) @I
(non-zinc sybstrates)
(GM4298P &
GM9102P)
Scab Corrosion & 2 weeks 1 week
4 days
Corrosion Creepback
(zinc surfaces)
tq:“’
tqi? tq8--)
(GM9511P)
Neutral Salt Spray
336 h (e) 168 h (e)
96 h (e)
24 h (e)
(GM4298P)
tb) tb) tb) (b)
Cyclic Corrosion see 5.2.1 see 5.2.1 see 5.2.1
(GM954OP)
Chip Resistance
(0
0 (0
tf) k) th) tf) 0
(GM9508P)
Dime Scrape,
(0
(0
Brittleness - Rigid
Substrate (GM9506P)
Thumbnail Hardness
( W
(GM9507P)
Cure (GM9509P)
, 00 . tk) , tk) , tk) , W , tk)
tk) 03
W
4350M
PAGE 2
OCTOBER 1999
GM4350M-ENGL 1999 E 9Ollb379 ClCJL45bb T55 I
I
GENERAL MOTORS ENGINEERING STANDARDS
I
Materials and Processes - Paint
I
PAINTED PART PERFORMANCE REQUIREMENTS
THE B CODES ARE SCHEDULED FOR DELETION BY 1 JANUARY 2001; DO NOT USE THEM
ON NEW APPLICATIONS
GM4350M
5.2.7 Dime Scrape (Brittleness) Test shall be conducted
5.3.4 Cold Crack/Corrosion
according to GM9505P.
Cycle Tests shall be conducted
according to GM9506P.
5.2.8 Thumbnail Hardness Test
to GM9507P
shall be conducted according
5.3.5 Color Crock Test shall be conducted
GM9033P.
according to
5.2.9 Cure Test shall be conducted according to GM9509P.
5.3.6 Oven Aging Test shall be conducted
GM9504P.
according to
5.2.10 Knife Crosshatch Adhesion
according to GM9502P
Test shall be conducted
5.3.7 Abrasion Resistance
conducted according to GM95 15P
Test of organic coatings shall be
5.2.11 Mandrel
GM9503P.
Bend Test shall be conducted according to
5.3.8 Wear Resistance
conducted according to GM95 16P.
Test (Canvas Belt Wear Test) shall be
5.2.12 Gasoline Puddle Resistance Test shall be conducted
5.3.9 Galvanic Corrosion Test
according to GM95OOP.
to GM95 1 OP.
shall be conducted according
5.2.13 Gasoline
5.3.10 Pencil
according to GM9501P.
Dip Resistance Test shall be conducted
ASTM D3363.
Hardness Test shall be conducted according to
5.2.14 Compatibility
This test
Test shall be conducted per GM9141P.
5.3.11 Oil Immersion
Immerse the p
Test shall be conducted as follows:
in contact with one
is to be used
another when
when 2 surfaces are
operational.
adjacent to and/or
automotive engine oil maintained
ainted specimen in a bath of current production
fied number o
@ 70 to 75°C for the speci-
5.3 PAINT DEVELOPMENT TESTS. Paint development
Attempt to press
f hours. Remove
a sturdy thumbnail
specimen
into painted
from the bath.
surface.
tests
While holding the nail in a vertical position and maintaining
engineering for qualification of paint materials. Paint
are, in most cases, long term tests which are to be used by
heavy
Engineering
to cause a maximum maning
pressure thereon, drag the nail across the surface so as
tests
tests g
required for a specific material
should be contacted to determine
enerally are not used for routine
a
q
nd
uality
application. These
the development
examine the
control.
marred. (A finish is considered
tested area and record the
and/or loosening effect Visually
removed and/or the appearance of the
marred if any paint
results as marred or not
surface has been signifi-
has been
NOTE: It is important to note that there are
The tests
tests that can be used to qualify paint
additional devel-
cantly changed.)
opment type materials.
5.3.12 Cyclic Corrosion Test shall be conducted according to
paint
required depending
development
listed below illustrate some
tests that are used. A
o
dditional
f the more
tests
common
may be
GM954OP.
tions, or will be
Length of test
determined
is defined in the
by Materials Engineering
individual speciflca-
will be exposed to in service.
upon the environment that a paint material
Engineering.
or Paint
5.3.1 Florida
Ground Test
vidual specifications.
requirements
Exposure Test
(GM9163P) are
and, if required, Desert Proving
6 GENERAL INFORMATION.
This standard was first
defined in the indi-
issued in December, 1960. The latest revisions includez
Rev Date
Description
5.3.2 Xenon Arc Weatherometer Test GM9125P
ments are defined in the individual specifications.
require-
H
9/98 Revised title, Table lJ.2, 1.3,
and 5.3, and added 4.1, 5.2.1, 5
1
.2.5
.4, 2
a
, 3
nd
5.3.3 Scab
5.3.12
GM9511P.
Corrosion Test shall be conducted according to
I lo/99 Added Thumbnail Hardness Test
4350M
PAGE 4 OCTOBER 1999
2024年6月5日发(作者：似如馨)
GMY35OM-ENGL 1999 -
I
9006379 OOL45b4 I,82 I
I
I
GENERAL MOTORS ENGINEERING STANDARDS Materials and Processes - Paint
PAINTED PART PERFORMANCE REQUIREMENTS
THE B CODES ARE SCHEDULED FOR DELETION BY 1 JANUARY 2001; DO NOT USE THEM
ON NEW APPLICATIONS
GM4350M
5 TESTS.
B96. Normally applicable to chassis and/or underhood
parts. Note: Do not use on new specifications.
5.1 Unless otherwise specified, painted parts shall be sub-
jected to the testing after a minimum aging period of 72 h
aging period
C24. Normally applicable to interior car parts having
following the baking or drying cycle. A shorter
may be used, provided it is recognized that this represents a
metallic substrate.
more severe condition of test and that results obtained at dif-
CO. Normally applicable to interior car parts having plastic
ferent aging times under 72 h are not a good basic for
comparing the relative performance characteristics of paint fm-
or other nonmetallic substrates.
ishes.
4 BASIC REQUIREMENTS.
4.1 RESTRICTED AND REPORTABLE SUBSTANCES
FOR PARTS (GMW3059). All materials supplied to this
specification must comply with the requirements listed in
5.2 QUALITY CONTROL TESTS. Quality control tests are
routine tests which are to be run on production parts as a
means of insuring part quality and/or process quality.
Frequency of these tests shall be based on a statistical sam-
pling plan determined by supplier. Tests are to be run in
accordance with class requirements as designated on the part
drawing and in Table 1. These tests shall also be performed
during the initial qualification process for paint materials.
5.2.1 Tape Adhesion Test shall be conducted according to
GM9071P
GMW3059, Restricted and Reportable Substances for
Parts.
4.2 PAINTED PARTS PERFORMANCE. Parts furnished to
this standard shall meet the test requirements shown in Table 1
for the class of finish specified.
TABLE I- QUALITY CONTROL TESTS
C24 co
A336
Al68 A96 A0 B336 (r) B168 (r) B96 (r)
Test Class
Tape Adhesion
(a) (a) (a) (a> (4 (a) (a) (a> (a)
(GM9071P)
Humidity & Tape 96&(b) 96&(b) 96 h (b) 96 h (b) 96 h (b) 24 h (b) 24 h (b) 24(h)(b) 24 h (b)
c
C
Adhesion (GM4465P &
C
(c) (cl
Cc)
(c) (cl (c)
GM907 1P)
Neutral Salt Spray & 336 h (d) 168 h (d) 96 h (d)
Corrosion Creepback
69 (b)
te) W te) @I
(non-zinc sybstrates)
(GM4298P &
GM9102P)
Scab Corrosion & 2 weeks 1 week
4 days
Corrosion Creepback
(zinc surfaces)
tq:“’
tqi? tq8--)
(GM9511P)
Neutral Salt Spray
336 h (e) 168 h (e)
96 h (e)
24 h (e)
(GM4298P)
tb) tb) tb) (b)
Cyclic Corrosion see 5.2.1 see 5.2.1 see 5.2.1
(GM954OP)
Chip Resistance
(0
0 (0
tf) k) th) tf) 0
(GM9508P)
Dime Scrape,
(0
(0
Brittleness - Rigid
Substrate (GM9506P)
Thumbnail Hardness
( W
(GM9507P)
Cure (GM9509P)
, 00 . tk) , tk) , tk) , W , tk)
tk) 03
W
4350M
PAGE 2
OCTOBER 1999
GM4350M-ENGL 1999 E 9Ollb379 ClCJL45bb T55 I
I
GENERAL MOTORS ENGINEERING STANDARDS
I
Materials and Processes - Paint
I
PAINTED PART PERFORMANCE REQUIREMENTS
THE B CODES ARE SCHEDULED FOR DELETION BY 1 JANUARY 2001; DO NOT USE THEM
ON NEW APPLICATIONS
GM4350M
5.2.7 Dime Scrape (Brittleness) Test shall be conducted
5.3.4 Cold Crack/Corrosion
according to GM9505P.
Cycle Tests shall be conducted
according to GM9506P.
5.2.8 Thumbnail Hardness Test
to GM9507P
shall be conducted according
5.3.5 Color Crock Test shall be conducted
GM9033P.
according to
5.2.9 Cure Test shall be conducted according to GM9509P.
5.3.6 Oven Aging Test shall be conducted
GM9504P.
according to
5.2.10 Knife Crosshatch Adhesion
according to GM9502P
Test shall be conducted
5.3.7 Abrasion Resistance
conducted according to GM95 15P
Test of organic coatings shall be
5.2.11 Mandrel
GM9503P.
Bend Test shall be conducted according to
5.3.8 Wear Resistance
conducted according to GM95 16P.
Test (Canvas Belt Wear Test) shall be
5.2.12 Gasoline Puddle Resistance Test shall be conducted
5.3.9 Galvanic Corrosion Test
according to GM95OOP.
to GM95 1 OP.
shall be conducted according
5.2.13 Gasoline
5.3.10 Pencil
according to GM9501P.
Dip Resistance Test shall be conducted
ASTM D3363.
Hardness Test shall be conducted according to
5.2.14 Compatibility
This test
Test shall be conducted per GM9141P.
5.3.11 Oil Immersion
Immerse the p
Test shall be conducted as follows:
in contact with one
is to be used
another when
when 2 surfaces are
operational.
adjacent to and/or
automotive engine oil maintained
ainted specimen in a bath of current production
fied number o
@ 70 to 75°C for the speci-
5.3 PAINT DEVELOPMENT TESTS. Paint development
Attempt to press
f hours. Remove
a sturdy thumbnail
specimen
into painted
from the bath.
surface.
tests
While holding the nail in a vertical position and maintaining
engineering for qualification of paint materials. Paint
are, in most cases, long term tests which are to be used by
heavy
Engineering
to cause a maximum maning
pressure thereon, drag the nail across the surface so as
tests
tests g
required for a specific material
should be contacted to determine
enerally are not used for routine
a
q
nd
uality
application. These
the development
examine the
control.
marred. (A finish is considered
tested area and record the
and/or loosening effect Visually
removed and/or the appearance of the
marred if any paint
results as marred or not
surface has been signifi-
has been
NOTE: It is important to note that there are
The tests
tests that can be used to qualify paint
additional devel-
cantly changed.)
opment type materials.
5.3.12 Cyclic Corrosion Test shall be conducted according to
paint
required depending
development
listed below illustrate some
tests that are used. A
o
dditional
f the more
tests
common
may be
GM954OP.
tions, or will be
Length of test
determined
is defined in the
by Materials Engineering
individual speciflca-
will be exposed to in service.
upon the environment that a paint material
Engineering.
or Paint
5.3.1 Florida
Ground Test
vidual specifications.
requirements
Exposure Test
(GM9163P) are
and, if required, Desert Proving
6 GENERAL INFORMATION.
This standard was first
defined in the indi-
issued in December, 1960. The latest revisions includez
Rev Date
Description
5.3.2 Xenon Arc Weatherometer Test GM9125P
ments are defined in the individual specifications.
require-
H
9/98 Revised title, Table lJ.2, 1.3,
and 5.3, and added 4.1, 5.2.1, 5
1
.2.5
.4, 2
a
, 3
nd
5.3.3 Scab
5.3.12
GM9511P.
Corrosion Test shall be conducted according to
I lo/99 Added Thumbnail Hardness Test
4350M
PAGE 4 OCTOBER 1999