CHRYSLER CORPORATION MATERIAL STANDARD NO: MS-PA1-1
Vehicle Engineering
Approved Source List Required: No Change: L
Volume: G Section: 1 Page: PA1-1
COATING REQUIREMENTS AND PERFORMANCE - GENERAL
1.0 GENERAL
1.1 Purpose of the Standard
This standard outlines the general requirements for coating materials and the performance criteria for the
coated part.
***NOTE: This standard supercedes MS-PD1-1.***
1.2 Purpose of the Material
This standard covers material used for coating specified parts.
1.3 Coverage of this Standard
Reference to individual Chrysler Material Standard is required (1) for a listing of the specific Performance
Tests to be conducted, (2) for test durations, and (3) for referral to the test panel preparation, Chrysler
Laboratory Procedures, and applicable Process Standards.
2.0 MATERIAL CHARACTERISTICS
Material for production parts must be equivalent in all properties to the approved laboratory sample.
MANDATORY: The supplier shall obtain approval from the Materials Engineering Paint Group, Chrysler
Engineering, Chrysler Technology Center, prior to making any change in the formulation of materials
supplied under the standard.
The coating, if decorative, must match the color, gloss, and texture of the master sample retained by the
Color and Fabrics Department, Chrysler Design Office, and must have performance approval from the
Materials Engineering Department. Color viewing shall be performed as described in Chrysler Laboratory
Procedure 463PB-35-01.
3.0 PERFORMANCE REQUIREMENTS OF THE MATERIAL
Production parts or test panels shall undergo the tests as described and, upon completion of the specified
time, shall perform as indicated.
3.1 Accelerated Weathering Resistance
There shall be no detrimental effects when exposed to the conditions listed below.
Xenon Weathering Interior 1240, 2500 kJ SAE J1885
Exterior 2500, 3750 kJ SAE J1960
MS-PA1-1, Change L, Page 1
QUV Interior 1000 Hours ASTM G53
Exterior 1500 Hours
L, a, and b values consisting of change in A, B and E readings along with Gloss retention data are required.
All panels will be reviewed by the Materials Engineering Group, Chrysler Corporation.
3.2 Atmospheric Etch Resistance
Follow Chrysler LP-463PB-53-01.
A. Acid Resistance
The .6N Hydrochloric (Hcl), .6N Nitric (HNO3), .6N Sulfuric (H 2SO4) acid spots shall show no appreciable
discoloration. A 10, 20, and 30 minute sample of each acid type must be included.
B. Acid Rain Resistance
The acid Rain spot shall show no appreciable discoloration. A 10, 20, and 30 minute sample of each pH
must be included.
C. Bee Pollen Resistance
The bee pollen spot shall show no appreciable discoloration. A 10, 20, and 30 minute sample must be
included.
3.3 Crock Mar Resistance
Follow Chrysler LP-463PB-54-01.
The coating shall not be easily marred or bruised and shall be able to withstand normal handling during
assembly. Record the percent gloss retention using a 20 degree gloss meter for interior and 60 degree
gloss meter for exterior.
3.4 Crock Resistance - (Dry Crock Method)
Follow SAE J861.
There shall be no appreciable color transfer onto the cloth. A rating of 4 or greater on the AATCC scale for
color transfer is acceptable.
3.5 Cycle Crack Resistance - (Method IV)
Follow Chrysler LP-463PB-22-01.
There shall be no cracking, checking, or related film failure. Identical panels, exposed in Florida at 5
degrees South for 3 months then subjected to 5 test cycles for interior and 15 for exterior, shall similarly
show no cracking, checking, or related film failure.
3.6 Flexibility***
Follow Chrysler LP-463PB-44-01.
MS-PA1-1, Change L, Page 2
For elastomeric substrates only. A 1" mandrel and 1/8" panel at room temperature and 0 degrees F. For
substrates with a Flexure Modulus between 130,000 and 300,000 psi (ref. MS-DC256) do not submit a 0
degree F Flexibility. It is recognized that this is too severe a test for stiffer substrates and that an improved
means of identifying frozen Flexibility strength is needed.
3.7 Florida Weathering
Follow Chrysler LP-463PB-34-01.
There shall be no checking, cracking, blistering, or peeling. Results shall be comparable to the approved
Master Standards and no worse than the exposure panels which were submitted by the supplier as proof of
durability during the source approval program. When the exposed panels are polished with MOPAR body
polish, they shall completely and readily regain their luster and be free of dirt and mildew. ***Record any
change in color and the percent gloss retention using a 20 degree gloss meter for interior and 60 degree
gloss meter for exterior.***
Interior 6, 12, 24, 36, 48 Months (Under Glass)
Exterior 6, 12, 24, 36, 48, 60 Months (Direct Exposure)
3.8 Fuel & Fluid Resistance
Follow Chrysler LP-463PB-31-01.
The coating shall not be affected to the extent that appreciable softening, swelling, discoloration, or
resistance to wiping is exhibited. After a recovery period at room temperature, the coating shall exhibit its
original color and gloss. Typical fluids tested include: Anti-freeze, brake fluid, gasoline, oil, suntan lotion,
transmission fluid, Windex glass cleaner, windshield wiper solvent. Fuels to be tested include: Unleaded
gasoline, M-15, M-30, M-85, Gasohol, OG, and OSG.
3.9 Gloss
Follow Chrysler LP-463PB-11-01.
The minimum target level shall be as specified in the Material Standard covering the individual coating.
3.10 Gravelometer
Follow Chrysler LP-463PB-39-01.
There shall be no chipping, cracking, or peeling of the coating from the substrates. Flat panels shall be
tested at both 45 and 90 degree angles with 2 pints of gravel. Marciniak panels should be tested only at a
90 degree angle. ***Elastomeric panels should only be tested at a 45 degree angle with 5 pints of
gravel***. All tested panels shall be rated according to SAE J400. All panels shall be tested at room
temperature and -20 degrees F.
3.11 Hardness - Tukon
Follow ASTM 1474.
Hardness specified in the Material Standard.
MS-PA1-1, Change L, Page 3
3.12 Humidity Resistance
Follow ASTM D1735.
There shall be no blistering, whitening, loss of gloss, or loss of adhesion between layers which is greater
than 0.8 mm (1/32 in.) from the scribed lines.
3.13 Impact Resistance
Follow Chrysler LP-463PB-19-01 Method A, B Only.
There shall be no loss of adhesion, flaking, or chipping between the Phosphate, E-Coat, Topcoat interfaces
on initial impact. Any film breakage shall be confine to concentric circles with the encompassed paint film
exhibiting tight adhesion to the substrate.
3.14 Initial Adhesion
Follow Chrysler LP-463PB-15-01.
There shall be no loss of adhesion between paint layers greater than 0.8 mm (1/32 in.) from the scribed
lines.
3.15 Intercoat Adhesion
Follow Chrysler LP-463PB-15-01.
There shall be no loss of adhesion between individual layers in the overall coatings system. This includes
Clearcoat to E-Coat, High Bake Repair Basecoat to Clearcoat, and Low Bake Repair Basecoat to
Clearcoat.
3.16 Kesternic
Follow Chrysler LP-463PB-40-01.
There shall be no cracking, checking, or related film failure.
3.17 Overspray Durability
Follow Chrysler LP-463PB-26-01.
Panels should be run through Humidity. There shall be no blistering, cratering, lifting, dulling, or loss of
adhesion in the oversprayed area.
3.18 Polishing
Follow Chrysler PS-8356.
The coating shall exhibit satisfactory polishing characteristics, which include:
A. Ease of sanding
B. Freedom from scaling when sanded and polished
C. Ease of removing sand scratches and surface defects with the approved polishing compounds
After polishing, there shall be minimal color and gloss change.
MS-PA1-1, Change L, Page 4
3.19 Salt Spray Resistance
Follow ASTM B117.
There shall be no blistering, rusting, or loss of adhesion between layers which is greater than 0.8 mm (1/32
in.) from the scribed lines.
3.20 Solvent Resistance
Follow Chrysler LP-463PB-7-01.
The coating shall not be affected to the extent that appreciable softening, swelling, or resistance to wiping is
exhibited. After a recovery period of 30 minutes at room temperature, the coating shall exhibit its original
color and gloss.
3.21 Telegraphing Resistance
Follow Chrysler LP-463PB32-01.
Tested panels shall not exhibit any telegraphing.
3.22 Transit Coating Compatibility
Follow Chrysler MS-7921.
The coating shall be exposed to the Transit Coating without any appreciable softening, swelling, streaking.
3.23 UV Transmittance
Follow Chrysler LP-463PB-56-01.
The UV transmittance shall be specified in the Material Standard. Pertains to Topcoat UV transmittance
only.
3.24 Water and Soap Resistance
Follow Chrysler LP-463PB-8-01.
There shall be no discoloration or film degradation.
3.25 Wear Resistance - Taber
Follow ASTM D4060-81.
There shall be minimal wear-through and minimal weight loss.
3.26 Wear Resistance - Wyzenbeek
Follow Chrysler LP-463KB-06-01.
There shall be minimal wear-through and minimal weight loss.
MS-PA1-1, Change L, Page 5
3.27 Yellowing
Follow Chrysler LP-463PB-36-01.
There shall be no visual color difference between single and double bake panels and the maximum
allowable decrease in gloss reading shall be 3 units, as measured on a Hunter 20 degree Gloss Meter.
Color Shift should also be measured using a X-Rite Spectrophotometer (or equivalent). The panels will be
reviewed by Materials Engineering, Chrysler Corporation.
4.0 PHYSICAL PROPERTIES AND TESTS
TABLE 1: PHYSICAL PROPERTIES AND TESTS
LAB
TEST PROCEDURE DESCRIPTION
Opacity - Hiding 463PB-55-01 This property shall be evaluated by spraying over a black and
Power gray contrast chart, affixed to a primed panel, baking as
(Dry Hiding Test) specified, then viewing the chart straight in (panel
perpendicular to the line of sight). There shall be no
discernible color difference between the black and gray areas.
Overspray 463PB-26-01 The material shall be compatible with others conforming to the
Compatibility same Material Standard to the degree that the over spray from
one shall produce no permanent detrimental effect (such as
dulling, roughness, or crate ring) when deposited on wet
sprayed films of another. It is the supplier's responsibility to
determine this property prior to submitting for either initial
qualification approval or any re-approval necessitated by
formulation change
Pigments/Aluminum ------- The pigments shall be selected and blended to insure that the
Flakes coated part matches the master panels retained by the Color
Mastering Studio of the Chrysler Design Office for color and
appearance. Individual pigments must have 24 months of
Florida Proof of Durability (POD) and should be registered with
the Materials Engineering Paint Group. Exterior metallic color
coatings shall be formulated only with high purity, chemical
resistant, aluminum flake. Approved equivalent flake shall be
established only by the Materials Engineering Paint Group,
Chrysler Corporation.
Resistivity ------- The resistivity shall be specified in the Material Standard
covering the individual coating. This shall be determined with a
Ransburg Model 70367 or 219G Paint Resistance Tester, or
equivalent.
Stability - Heat Age 463PA-5-01 The stability requirements shall be specified in the Material
Standard covering the individual coating. Maximum
permissible increase in viscosity is 15 seconds.
Stability - Shelf Life 463PA-5-01 Maximum permissible increase in viscosity is 10 seconds.
Total Non-Volatile 463PA-1-01 Non-volatile content shall be specified in the Material Standard
Content covering the individual coating.
MS-PA1-1, Change L, Page 6
TABLE 1: PHYSICAL PROPERTIES AND TESTS
LAB
TEST PROCEDURE DESCRIPTION
Vehicle ------- Unless restricted by the Individual Material Standard, the
supplier is given latitude in the selection of raw materials and
processes of manufacture, provided the coated product meets
all of the requirements of the standard.
Viscosity 463PB-5-01 Viscosity requirements shall be specified in the Material
Standard covering the individual coating.
Volatile ------- The solvency and evaporation rates of the volatile are to be
formulated to insure the specified method of application shall
produce a coated part which meets the required visual and
performance criteria.
Volatile Organic ------- The maximum permissible VOC level for both the virgin and
Compounds (VOC) reduced materials shall be specified by the Environmental
Manager of the Paint and Energy Management Group of the
Chrysler Corporation.
5.0 GENERAL INFORMATION
Three asterisks “***” after the paragraph header denotes multiple technical changes to the paragraph. A
triple asterisk before and after a string of text (***text***) identifies a single change.
Certain important information relative to this standard has been included in separate standards. To assure
the materials submitted meet all of Chrysler requirements, it is mandatory that the requirements in the
following standards be met.
CS-9800 - Application of this standard, the subscription service, and approved sources
CS-9801 - General quality requirements
CS-9003 - Regulated substances and recyclability
Within Engineering Standards, the designations <S>,<E>, <N>, <T>, or <H> will be substituted for the
Safety, Emission, Noise, Theft Prevention, or Homologation Shields respectively. The designations <D>
and <P> will be substituted for the Diamond or Pentagon symbols respectively.
Materials shall only be purchased from those sources listed under Engineering Approved Source List.
6.0 REFERENCES
CS-9003 CS-9800 CS-9801 MS-7921
463PA-1-01 463PA-5-01 463KB-6-01 463PB-5-01 463PB-7-01 463PB-8-01
463PB-11-01 463PB-15-01 463PB-19-01 463PB-22-01 463PB-26-01 463PB-31-01
463PB-32-01 463PB-34-01 463PB-35-01 463PB-36-01 463PB-39-01 463PB-40-01
463PB-53-01 463PB-54-01 463PB-55-01 463PB-56-01
MS-PA1-1, Change L, Page 7
ASTM 1474 ASTM B117 ASTM D1735 ASTM D4060-81 ASTM G53
SAE J400 SAE J861 SAE J1885 SAE J1960
Chrysler, Ford and General Motors manual, Quality System Requirements QS-9000
7.0 BIBLIOGRAPHY
Date Standard Originally (Initially) Issued: 10/13/55
Department Name and Number: Body Materials Engineering, Dept. 5820
Contact/Phone No: Kathy Elder, (810) 576-7433
Date of Change: 12/09/96
Model Year - Effectivity Code - Disposition Code:
Authority: Editorial
Change Level: L
Description of Change: Standard Updated; New Format
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MS-PA1-1, Change L, Page 8
