1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW16879 Performance Requirements of Ultra High Molecular Weight Polyethylene (UHMW PE) Tape Copyright 2013 General Motors Company All Rights Reserved February 2013 Page 1 of 4 1 Scope This specification covers the material properties and durab
2、ility requirements of an ultra-high molecular weight (UHMW PE) polyethylene film either coated with an adhesive or laminated to a single coat foam tape. The adhesive shall be a permanent acrylic pressure sensitive adhesive. This tape is designed to provide surface protection against scratches, chafi
3、ng, itching, squeaking and mechanical wear. When laminated to foam, the tape can also provide vibration and rattle reduction. 1.1 Material Description. The UHMW film has a maximum service temperature of 105 C. It is not to be used in decorative applications or areas exposed to ultraviolet (UV). The
4、film color can be either translucent or black. Available film thicknesses are 0.08, 0.125, 0.25 and 0.50 mm. The 0.125 mm thick film is typically used, and most of the data below is based on this thickness. The film can be laminated to foams of various chemistries, typically acrylic or urethane. 1.1
5、.1 Type I material is UHMW PE film coated with a permanent acrylic pressure sensitive adhesive. 1.1.2 Type II material is UHMW PE film laminated to a single coated foam tape. 1.1.3 If there is no type call-out on the drawing, the construction is assumed to be Type I. 1.2 Symbols. Not applicable. 1.3
6、 Typical Applications. Not applicable. 1.4 Remarks. Not applicable. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. FMVSS 302 ISO 8295 ISO 8510-2 ISO 34-1 ISO 8510-1 2.2 GM Standards/Specifications. GMW3010 GMW32
7、35 GMW15548 GMW3059 GMW14124 GMW15572 GMW3232 GMW14729 GMW16208 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements 3.1 Tape Performance. All tests shall be performed at ambient condition, 22 C 3 C and 55% 5% relative humidity (RH), unless
8、otherwise indicated. 3.2 Properties. See Table 1. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16879 Copyright 2013 General Motors Com
9、pany All Rights Reserved February 2013 Page 2 of 4 Table 1: Performance Requirements Properties Values Test Methods Type I Type II Liner Removability N/m, maximum 200 200 180 degree peel at 300 mm/minute per ISO 8510-2. 90 or 180 degree Peel Adhesion Note 1, N/m, minimum 180 degree peel at 300 mm/mi
10、nute per ISO 8510-2. 90 degree peel at 300 mm/minute per ISO 8510-1. After 72 h room temperature (RT) 350 350 After 24 h humidity, GMW14729, Option A or B. 350 300 After 168 h oven Aging at 70 C 350 875 After two Cycles of GMW14124, Cycle M. 350 875 Dynamic Shear Strength Note 2, 323 mm2 Bond Area,
11、50 mm/minute Crosshead Speed, KPa, minimum 200 200 GMW3010 Tear Resistance, kg, minimum 2.0 2.0 ISO 34-1, Method B (no nick) Tensile Strength, MPa, minimum 15 10 GMW3010, Code L Tensile Strength after 168 h oven aging No increase more than 100% of initial value Elongation, percent (%) minimum 150 15
12、0 GMW3010, Code L Elongation after 168 h oven aging, percent (%) minimum 50 50 Coefficient of Kinetic Friction, maximum between tape and stainless steel 0.25 0.25 ISO 8295 Fogging See Note 3 See Note 3 GMW3235, Method A Flammability See Note 4 See Note 4 GMW3232 Note 1: Bond tape to production inten
13、t substrate (if not available use ABS (GMW15572P-ABS-T1 or T2) and polypropylene (GMW16208P-PP-T1 or GMW15548P-PP-T3). Allow a 72 h dwell at ambient conditions prior to exposure. After exposure to any condition, allow a 24 h dwell at ambient conditions prior to testing. Use 180 degree peel for Type
14、I tape, 90 degree peel for Type II tape. Note 2: Bond 25.4 mm wide tape to production intent substrate (if not available use ABS (GMW15572P-ABS-T1 or T2) and polypropylene (GMW16208P-PP-T1 or GMW15548P-PP-T3). Allow a 72 h dwell at ambient conditions prior to testing. Note 3: Photometric procedure:
15、Bath temperature at 85 C, or as specified on the part drawing; cooling temperature of 38 C, 6 h test time; 16 h post conditioning time. The amount of fog when measured with a 60 degree gloss meter shall have a rating of 60 units or more. Samples that result in any visual signs of crystallinity, when
16、 viewed under 40x magnifications shall be judged to have not passed this requirements. Note 4: Must comply with FMVSS 302. 3.3 Shelf Life. Material shall pass all requirements of this specification after aging material in the original container 90 days at 35 C. 3.4 Other test may be required to vali
17、date the specific application. 4 Manufacturing Process Not applicable. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16879 Copyright 20
18、13 General Motors Company All Rights Reserved February 2013 Page 3 of 4 5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the English and dome
19、stic language, the English language shall take precedence. 5.3 Inspection and Rejection. Samples of components or materials released to a GM material specification shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering departme
20、nt prior to commencement of delivery of bulk supplies. A new approval must be received for any changes, e.g., properties, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the res
21、ponsibility of the supplier to inform the customer in a timely manner, without solicitation, and to include documentation of all modifications of materials and/or processes and to apply for a new release. If not otherwise agreed, all release tests shall be repeated and documented by the supplier pri
22、or to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreed to between the responsible Engineering department and the supplier. 5.4 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemic
23、al composition of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements.
24、In addition, product MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.5 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Report
25、able Substances for Parts. 6 Approved Sources Materials supplied to this specification must be approved by General Motors. A list of approved materials can be found in MATSPC. This GM Material File is provided to third parties to reduce redundant testing of materials. If approved material already li
26、sted is used, the part supplier can use GM Material File reference for Production Part Approval Process (PPAP) material approval. If the decision is made to use a not yet approved material, contact the Adhesives Global Subsystem Leadership Team for detail on the approval process. The material approv
27、al process must be completed prior to PPAP start date of the part supplied to General Motors. 7 Notes 7.1 Glossary. Not applicable. MATSPC: Global repository of GM approved materials for corresponding GM Engineering Standards. 7.2 Acronyms, Abbreviations, and Symbols. ABS Acrylonitrile Butadiene Sty
28、rene FMVSS Federal Motor Vehicle Safety Standard GHS Globally Harmonized System of Classification and Labeling of Chemicals MSDS Material Safety Data Sheet PE Polyethylene PP Polypropylene PPAP Production Part Approval Process RH Relative Humidity RT Room Temperature SDS Safety Data Sheet UHMW PE Ul
29、tra High Molecular Weight Polyethylene UV Ultraviolet Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16879 Copyright 2013 General Motors
30、 Company All Rights Reserved February 2013 Page 4 of 4 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW16879 9 Release and Revisions This standard was originated in November 2012. It was first approved by the Adhesives Global Subsyste
31、m Leadership Team in February 2013. It was first published in February 2013. Issue Publication Date Description (Organization) 1 FEB 2013 Initial publication. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
