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Description / Abstract:
Material Description. Plastic Roll Goods (PRG) covered by this
specification consists of two (2) basic construction types;
Supported and Unsupported. PRG materials shall be compounded to be
flexible, free from tackiness and compatible with other PRG
materials, plastics, fabrics and coated genuine leather. Plastic
roll goods must be free from pinholes, pitting or dimpling. The
material must be capable of being routinely handled in the
manufacturing process without damage.
Supported PRG. The material shall consist of a synthetic polymer
skin such as Polyvinyl Chloride (PVC), Thermoplastic Olefin (TPO)
or Polyurethane (PUR), supported by a textile fabric. The material
may also include a laminated foam (flame or adhesive lamination) or
foam/scrim back-layer. These materials are typically processed by
cut and sew, wrapping and low pressure molding. The supported PRG
can be a bilaminate (PRG + foam) or trilaminate (PRG + foam +
scrim).
Unsupported PRG. The material shall consist of a synthetic
polymer skin such as PVC, TPO or PUR, with no fabric backing, 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.
Symbols. The finish symbol code defines the material
construction and will be assigned by the responsible department.
Trim materials are described by finish symbols which define the
commodity, construction, 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 the appropriate completed Supported, Unsupported or
Laminate Construction Specification Data Sheets. Note: See Appendix
A, Data Sheets A1, A2 and A3 for examples of the Construction
Specification Data Sheets. Actual forms can be downloaded
fromhttp://www.gmsupplypower.com.
The GM SupplyPower folder path is: Document Library, Engineering,
Global, Product Design. Folder title: "Textile GMW's – Forms,
Templates, and Finish Symbols". Document: " GMW14122 Rev. 2015
Plastic Roll Goods Material Specification Forms".
Applicability. The requirements in this specification are
defined based on Type, relative to the application of the PRG on
the part.
• Type A: Supported PRG for use on Seats, Door/Console Armrests,
and Instrument Panel (IP)/Door Inserts Mid or Lower.
• Type B: Supported PRG for use on IP Uppers and Door Uppers
(includes High Heat/Ultraviolet (UV) Resistance).
• Type C: Supported PRG for use on Shift Boots and Steering
Column Closeouts.
• Type D: Supported PRG for use on Steering Wheels and Shift
Knobs.
• Type E: Unsupported PRG for use on IP, Doors and Rear
Shelves.
• Type F: Unsupported PRG for use on Deployable IPs.
• Type G: Unsupported PRG for use on Visors and Headliners.
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 if used in non-solar
glass vehicles.
Remarks. Not applicable.