1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2014 04 02 Released D. Murtonen, FNA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 4 PERFORMANCE, EXTERIOR ROLL-UP TONNEAU WSS-M8P26-A1 PERFORMANCE, EXTERIOR TRI-FOLD TONNEAU WSS-M8P26-A2 1. SC
2、OPE This specification defines the standard performance requirements for soft flexible materials used in exterior tonneau cover applications. 2. APPLICATION This specification was released originally for materials used in the F150 exterior tonneau cover. In addition, other components used in the ton
3、neau cover system must meet the following requirements if present in the system. Exterior rigid painted parts must meet WSS-M2P180-D or latest. Labels must meet WSS-M99P41-A10/A72 or latest. Exterior plastic parts must meet WSS-M98P13-C or latest. EDPM rubber parts must meet the appropriate specific
4、ation per engineering drawing WSS-M2D(378-381)-B1 or latest. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111/latest). 3.2 SAMPLE SELECTION All evaluation
5、s shall be conducted on test specimens taken from production representative exterior tonneau rolled goods, assemblies or parts. 3.3 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center master sample or shall be specified on the engineering drawing. 3.4 CO
6、NSTRUCTION (ASTM D629) Construction as specified on the Engineering Drawing. Roll up - PVC film with 100% polyester backing Tri-Fold PVC with 100% polyester woven-knit substrate, with color matched backing ENGINEERING MATERIAL SPECIFICATION WSS-M8P26-A1/A2 Copyright 2014, Ford Global Technologies, L
7、LC Page 2 of 4 3.5 COMPOSITION 3.5.1 Weight (ASTM D751, Sample Method) WSS-M8P26-A1 630 +/- 68 g/m2 WSS-M8P26-A2 670 +/- 60 g/m2 3.5.1 Finished Thickness (ASTM D751) Report Range in mm 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate 100 mm/minute max 3.7 RESISTANCE PROPERTIES 3.7.1 Resistance to Croc
8、king (FLTM BN 107-01, AATCC Evaluation Procedure 2, Test A Surface Only) Wet Rating 4-5 min Dry Rating 4-5 min 3.7.2 Fluid Spotting Resistance Rating 4-5 min (FLTM BI 168-01, Method B, AATCC Evaluation Procedure 2 Gasoline Only) No staining or change in color 3.7.3 Soiling and Cleanability Rating 4
9、min (FLTM BN 112-08, ISO 105-A02/AATCC, All agents and Body Wax) 3.7.4 Resistance to Heat Aging Rating 4 min (7 days at 100 +/-2 C, ISO 105-A02/AATCC Evaluation Procedure 1) After exposure, the material shall show no evidence of tackiness, spewing, excessive loss of grain or exhibit staining, color
10、tone change or change in hue in excess of required AATCC rating. Any “spotty“ or non-uniform staining or discoloration shall be cause for rejection. 3.7.5 Environmental Cycling (ISO 105-A02/AATCC Evaluation Procedure 1) Rating 4 min 5 cycles of the following: 3 h at 80 +/- 2 C 1 h at 23 +/- 2 C and
11、50 +/-5% RH 3 h at -40 +/-2 C 1 h at 23 +/- 2 C and 50 +/-5% RH 16 h at 38 +/- 2 C and 95 to 98% RH After exposure the material shall show no color change in excess of the specified Grey Scale rating. In addition, there shall be no cracking, crazing, dulling, or other deterioration. ENGINEERING MATE
12、RIAL SPECIFICATION WSS-M8P26-A1/A2 Copyright 2014, Ford Global Technologies, LLC Page 3 of 4 3.7.6 Weathering Resistance (ASTM D7869, ISO-A02/AATCC Evaluation Procedure 1) *Must be completed for new supplier, construction or technology. After exposure the material shall show no color change in exces
13、s of the specified Grey Scale rating. In addition, there shall be no cracking, crazing, dulling, or other deterioration. 3.8 WEAR PROPERTIES 3.8.1 Resistance to W Flex (FLTM BN 102-02) Original 10,000 cycles Rating 1 min After Exterior Weathering 10,000 cycles-1000 h. Rating 1 min The coating shall
14、show no evidence of crazing, lifting, peeling, crackling or delamination from the fabric. 3.8.2 Resistance to Abrasion 1000 cycles min (SAE J948, CS10 wheels, 1000 g load) The materials wear pattern and color shall be compatible in appearance with the adjacent unabraded areas. 3.9 Tensile Strength (
15、ASTM D751) WSS-M8P26-A1 Warp 1670 N min Fill 1985 N min WSS-M8P26-A2 Warp 555 N min Fill 444 N min 3.10 Shrinkage (SAE J883) WSS-M8P26-A1 Warp 1% max Fill 1% max WSS-M8P26-A2 Warp 1.5% max Fill 0.75% max ASTM D7869 (preferred) SAE J2527 Boro/Boro Testing to Complete Rating 750 h 1000 h Fade Resistan
16、ce Evaluation Specimen used for W Flex Fade Resistance Rating 4 min W Flex Rating 1 min 2250 h 3000 h Fade Resistance Fade Resistance Rating 4 min *3750 hr *6000 h or 2 yr Florida Actual Fade Resistance Fade Resistance Rating 4 min ENGINEERING MATERIAL SPECIFICATION WSS-M8P26-A1/A2 Copyright 2014, F
17、ord Global Technologies, LLC Page 4 of 4 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS TABLE 1 Paragraph
18、 Sample Size New Cover Material Construction Approval Color Approval Only 3.4 Flammability 5 warp/5 fill X X 3.5 Weight 3/avg. X X 3.6 Finished Thickness 3/avg. X X 3.7.1 Resistance to Crocking 1 per condition X X 3.7.2 Fluid Spotting Resistance 1 per condition X X 3.7.3 Soiling and Cleanability 1 per condition X X 3.7.4 Resistance to Heat Aging 1 X X 3.7.5 Environmental cycling 1 X X 3.7.6 Weathering Resistance 1 X X 3.8.1 Resistance to W flex 3 X 3.8.2 Resistance to Abrasion 3 X 3.83 Tensile Strength 5 warp/5 fill X 3.8.4 Shrinkage 1 X
