1、 ENGINEERING STANDARDS Material Specification EDS-M-6069 Plastic Roll Goods Copyright 2011 General Motors Company All Rights Reserved December 2011 Originating Department: GM Korea Engineering Standards Page 1 of 18 Version: 1 1 Scope 1.1 Material Description. Plastic Roll Goods (PRG) consist of two
2、 basic construction types, Supported and Unsupported. Plastic Roll Goods (PRG) materials shall be compounded to be flexible, free from tackiness, and compatible with other PRG materials and coated genuine leather. Plastic rolled goods must be free from pinholes, pitting or dimpling. The material mus
3、t be capable of being routinely handled in the manufacturing process without damage. 1.1.1 Supported PRG (Artificial Leather). The material shall consist of a synthetic resin skin such as Polyvinyl Chloride (PVC), Thermoplastic Olefin (TPO) or Polyurethane (PUR), supported by a textile fabric. The m
4、aterial may also include a laminated foam or foam/scrim back-layer. These materials are typically processed by cut and sew, wrapping, and low pressure molding. 1.1.2 Unsupported PRG (Foil, Compact Sheet). The material shall consist of a synthetic resin skin such as PVC, TPO, or PUR, with no fabric b
5、acking, but may include a foam back-layer (bilaminate), or a foam/skin back-layer (trilaminate). These materials are typically processed by methods such as vacuum thermoforming and low pressure molding. 1.2 Symbols. The finish symbol code defines the material construction and will be assigned by the
6、 responsible department. Trim materials are described by finish symbols which define the commodity, construction code, backings, gloss, grain, and color. The construction code is a unique identifier of the technology used to make a particular product. The construction code is described in detail on
7、the appropriate completed Supported, Unsupported, or Laminated Construction Specification data sheet. Note: See Appendix B, Data Sheets B1, B2, and B3 for examples of the Construction Specification Data Sheets. Actual forms can be downloaded from http:/. The GM Supply Power folder path is: Document
8、Center, Engineering, Global, Product Design. Document title: “Textile GMWs Forms, Templates and Finish Symbols”. Attachment: “GMW14122_Plastic Roll Goods Material Specification Form”. 1.3 Typical Applications. Seat, armrest, console, door insert, door panel, instrument panel, garnish molding, securi
9、ty screen, sunshade, shift/brake boots and steering wheel/shift knob. Note: For requirements for vehicles without solar absorbing glass, contact the appropriate Materials Engineer. All interior materials are developed to be used in vehicles with solar glass; therefore performance may be compromised
10、if used in non-solar glass vehicles. 1.4 Remarks. This specification will be applied on the vehicles for Indian Market only. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 105-A02 ISO 105-A03 ISO 105-B06 ISO
11、 105-X12 ISO 216 ISO 2589 ISO 5402 ISO 13937-2 ISO 15701 ISO/IEC 17025 VDA 230-206 2.2 GM Standards/Specifications. GMW3001 GMW3010 GMW3417 GMW4217 GM WORLDWIDE ENGINEERING STANDARDS EDS-M-6069 Copyright 2011 General Motors Company All Rights Reserved December 2011 Page 2 of 18 Version: 1 GMW3059 GM
12、W3116 GMW3182 GMW3205 GMW3208 GMW3211 GMW3220 GMW3221 GMW3232 GMW3235 GMW3390 GMW3402 GMW3405 GMW6992 GMW14124 GMW14125 GMW14126 GMW14127 GMW14131 GMW14132 GMW14162 GMW14296 GMW14445 GMW14864 GMW15058 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents GM Global Appearanc
13、e Engineering Database 3 Requirements 3.1 General Requirements. 3.1.1 Requirements on Test Specimens. All test specimens shall be conditioned to GMW3221 Code A, for a minimum of 24 h before and after completion of test unless the test method indicates that standard conditioning is not required. 3.1.
14、2 Sampling and Test Specimen Preparation. Cut specimens no closer than 50 mm from the edges. Specimens cut from machine and cross machine direction should be cut across the roll (side, center, side). The longest dimension of the specimen, as it aligns to the machine direction of the roll, identifies
15、 the specimen direction Machine Direction (MD) or Cross Machine Direction (CMD). 3.1.3 Visual Evaluation of Automotive Trim (GMW6992). The color, pattern, aesthetics and other related qualities shall be approved by the appropriate engineering department as an acceptable match to the standard when vi
16、ewed under conditions set forth in GMW6992. See the appropriate completed Supported, Unsupported, or Laminated Construction Specification Data Sheet for pattern and finish information. 3.1.3.1 Haptics and Surface Feel. The aesthetic haptics of the PRG shall be approved by General Motors to the GM Ha
17、ptic Standard (when one exists), or to GM Design direction as identified by GM for new construction developments. Haptic approval is required prior to construction approval. Haptic approval must be reported on the appropriate completed Supported, Unsupported, or Laminated Construction Specification
18、Data Sheet. GM and the PRG supplier shall retain signed pieces representing the acceptable hand of the PRG. The hand of the PRG of every shipment shall be equivalent to the original approved construction piece, as well as not degrading from the GM Haptic Standard. 3.1.4 Deviations from Defined Test
19、Methods. Deviations from the conditions of any test method shall have been agreed upon between supplier and vehicle manufacturer. All deviations shall be specified on the component drawings, material specifications, etc., and shall be indicated on test certificates, reports, trim transmittal, etc. 3
20、.1.5 Lab Accreditation. Test Data. Lab testing shall be performed by a laboratory that conforms to ISO/IEC 17025 (see Note) and is acceptable to the responsible GM department. Test reports must conform to 5.10.2 and 5.10.3 of ISO/IEC 17025. Supplier shall submit a letter of compliance. Note: Meets r
21、equirements of ISO/IEC 17025, but does not need to be verified by a third party accrediting agency. 3.1.6 Data Reporting. All required information shall be entered into the appropriate Construction, Color, or Supported Laminates Certification Data Form. Note: See Appendix A, Data Sheets A1, A2, and
22、A3 for examples of the Certification Data Forms. Actual forms can be downloaded from http:/. The GM Supply Power folder path is: Document Center, Engineering, Global, Product Design. Document title: “Textile GMWs Forms, Templates and Finish Symbols”. Attachment: “GMW14122 Plastic Roll Goods Lab Data
23、 Form”. GM WORLDWIDE ENGINEERING STANDARDS EDS-M-6069 Copyright 2011 General Motors Company All Rights Reserved December 2011 Page 3 of 18 Version: 1 If all individual readings of a specific test meet or exceed the specified requirements, report the average. Report all individual test results that d
24、o not meet the requirements, unless otherwise stated. 3.1.7 Test Specimens. All tested specimens submitted to GM by suppliers shall be stapled to size A4 white cardstock. On each card, list the test report number, material specification and section number, test date, observations, and disposition. T
25、he sheets must be arranged so that they are in order by section number and submitted in a ring binder. 3.1.8 Documentation. Samples of components or material released to this specification shall be tested for conformity with the requirements of this specification and approved by the responsible GM d
26、epartment prior to the start of delivery of production level components or materials. Any change to the component or material, (e.g., design, function, properties, manufacturing process and/or location of manufacturer) requires a new release of the product. It is the sole responsibility of the suppl
27、ier to provide the customer, unsolicited, with documentation of any change or modification to the product/process, and to apply for a new release. If not otherwise agreed to, the entire verification test shall be repeated and documented by the supplier prior to start of delivery of the modified or c
28、hanged product. In some cases a shorter test can be agreed to between the responsible GM department and the supplier. 3.2 Construction Requirements. Paragraph 3.1 describes the general requirements for all PRG specimens. Paragraph 3.3 describes construction requirements the PRG face goods; paragraph
29、 3.4 describes the color requirements for PRG face goods laminated to foam. Record results of 3.2.1 to 3.2.24 on a Plastic Roll Good Construction Certification Data Form. See Data Sheet A1 for an example. All required information shall be supplied on the appropriate Supported, Unsupported, or Lamina
30、ted Construction Specification Data Sheet and submitted with each PRG for engineering construction approval. 3.2.1 Weight (GMW3182). Weigh three (3) specimens. Record the average g/m2. Refer to the appropriate Construction Specification Data Sheet for the requirement. 3.2.2 Thickness (ISO 2589). Tes
31、t three (3) specimens. Record the average in millimeters to the nearest tenth of a millimeter. Refer to the appropriate Construction Specification Data Sheet for the requirement. 3.2.3 Breaking Load, Tensile Strength and Elongation. 3.2.3.1 Breaking Load (GMW3010) Knit and Non-woven Supported PRG Co
32、de H and Woven Supported PRG Code J. Test three (3) specimens from the machine direction and three (3) specimens from the cross machine direction. A minimum of 200 N is required in the machine direction and a minimum of 135 N is required in the cross machine direction unless otherwise specified in t
33、he appropriate Construction Specification Data Sheet. 3.2.3.2 Tensile Force (GMW3010) Code N Unsupported PRG. 3.2.3.2.1 Tensile Force. Test three (3) specimens from the machine direction and three (3) specimens from the cross machine direction. Record the average in Newtons. Refer to the appropriate
34、 Construction Specification Data Sheet for requirements. 3.2.3.2.2 Elongation at Break. Record the percent elongation. Refer to the appropriate Construction Specification Data Sheet for requirements. 3.2.4 Tear Strength, Trouser (ISO 13937-2) Supported PRG Only. Test three (3) specimens from the mac
35、hine direction and three (3) specimens from the cross machine direction. A minimum of 10 N is required unless otherwise specified in the appropriate Construction Specification Data Sheet. 3.2.5 Shrinkage (GMW4217) Supported PRG for Instrument Panel Only. Cut three (3) specimens 300 x 300 mm and iden
36、tify the machine and cross machine direction on the test specimen for each specified test cycle. See Figure 1. Report the percentage change separately in both directions. Refer to the appropriate Construction Specification Data Sheet for requirements. GM WORLDWIDE ENGINEERING STANDARDS EDS-M-6069 Co
37、pyright 2011 General Motors Company All Rights Reserved December 2011 Page 4 of 18 Version: 1 Figure 1: Shrinkage Test Specimen 3.2.5.1 Heat/Humidity Cycle (GMW14124). Cycle R, repeat cycle 20 times for 240 h total exposure. 3.2.5.2 Environmental Cycling (GMW14124). Cycle M, repeat cycle two (2) tim
38、es. 3.2.5.3 High Heat. Expose specimens to 120 C in a mechanical convection oven for 168 h. Evaluate sample after specimen has reached room temperature. 3.2.6 Stretch and Set (GMW3211). Supported PRG Only. Test three (3) specimens in the machine direction and three (3) specimens from the cross machi
39、ne direction using a 100 N load. Record average if all specimens meet the requirement. If any one specimen does not meet the requirement, report all values. Refer to the appropriate Construction Specification Data Sheet for the requirement. 3.2.7 Flexibility (GMW3390) Supported PRG Only. Cut three (
40、3) specimens in the machine direction and three (3) specimens in the cross machine direction. Measure all six (6) specimens finished side up only. Record the average. Reference the appropriate Construction Specification Data Sheet for requirements. 3.2.8 Chemical Resistance. (GMW14296, GMW14445, and
41、 GMW14125 for Steering Wheel and Shift Knob Constructions Only). Test according to 3.2.8.1 thru 3.2.8.4. Use scuff and mar test GMW14125 Code H X6, scuff for three (3) cycles over chemically treated area. No color change allowed. The coating must not blister, swell, soften or peel. 3.2.8.1 Perspirat
42、ion Resistance as Received (GMW14296). Test one (1) specimen as received. Record the results. 3.2.8.2 Perspiration Resistance after Artificial Weathering (GMW14296). After exposure to the artificial weathering procedure, test one (1) specimen and record the results. Compare results to the requiremen
43、t specified on the appropriate Construction Specification Data Sheet. 3.2.8.3 Sunscreen and Insect Repellent Resistance as Received (GMW14445). Test one (1) specimen as received. Spread the chemical over the specimen using a glass stirring rod. Record the results. 3.2.8.4 Sunscreen and Insect Repell
44、ent Resistance after Artificial Weathering (GMW14445). After exposure the artificial weathering process, test one (1) specimen by spreading the chemical over the specimen using a glass stirring rod. Record the results. Compare results to the requirement specified on the appropriate Construction Spec
45、ification Data Sheet. 3.2.8.5 Scuff and Mar after Exposure to Perspiration and Sunscreen (GMW14125). Record the results. 3.2.9 Flammability (GMW3232). For initial approvals and routine quality control see GMW3232, 6.1.1.1.2 and 6.1.1.2.1.After completion of the flammability test, record results on t
46、he Plastic Roll Good Construction Certification Data Form and attach the Appendix B Flammability Test Report from GMW3232. 3.2.9.1 After Conditioning. Immediately prior to tests, all test specimens shall be conditioned for a minimum of 24 h according to GMW3221 Code A. 3.2.9.2 After Aging. The test
47、cycle shall commence with (481) h at (403) C and (935) % RH, followed by (1681) h at (+903) C. Complete the test cycle without interruption. Repeat 3.2.9.1 before testing flammability. 3.2.10 Odor (GMW3205). Use a ratio of 1:100 test specimens to container. A minimum rating of 5 is required. Record
48、the results for wet and dry conditions. 3.2.11 Fogging (GMW3235) Gravimetric Method. Using Method B, report the average for three (3) specimens. The weight change of the used aluminum foil shall be no greater than 1.5 mg. Refer to Table 1 GM WORLDWIDE ENGINEERING STANDARDS EDS-M-6069 Copyright 2011
49、General Motors Company All Rights Reserved December 2011 Page 5 of 18 Version: 1 for requirements. Table 1: Fogging Requirements (Solar Glass) Application Bath Bath For Information Instrument panel, package shelf, steering wheel 110 C 100 C All other 90 C None 3.2.12 Cold Crack. Evaluate the face side of specimens by flexing at the point of impact. There shall be no cracking or crazing of the finish or skin when evaluated without magnification. Record all results. 3.2.12.1 Supported PRG - Folded Sample Method (GM
