1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev.02 2017 06 27 Editorial Corrected footer A. Collins, NA 2016 12 2 Revised See Summary of Revisions M. Jones, FNA 2008 06 20 Activated M. Jones, FNA Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 of 6
2、TAPE WITH CLEARCOAT, URETHANE, PRESSURE SENSITIVE, CHIP WSS-M99J291-B1 RESISTANT, EXTERIOR, HIGH UV FOR HIGH IMPACT AREAS TAPE WITH CLEARCOAT, URETHANE, PRESSURE SENSITIVE, CHIP WSS-M99J291-B2 RESISTANT, EXTERIOR, LOW UV FOR HIGH IMPACT AREAS TAPE WITH CLEARCOAT, URETHANE, PRESSURE SENSITIVE, CHIP W
3、SS-M99J291-B3 RESISTANT, EXTERIOR, HIGH UV FOR MODERATE IMPACT AREAS TAPE WITH CLEARCOAT, URETHANE, PRESSURE SENSITIVE, CHIP WSS-M99J291-B4 RESISTANT, EXTERIOR, LOW UV FOR MODERATE IMPACT AREAS TAPE, NON-TOPCOATED, URETHANE, PRESSURE SENSITIVE, CHIP WSS-M99J291-B5 RESISTANCE, NON- VISIBLE APPLICATIO
4、NS FOR HIGH IMPACT AREAS TAPE, NON-TOPCOATED, URETHANE, PRESSURE SENSITIVE, CHIP WSS-M99J291-B6 RESISTANCE, NON- VISIBLE APPLICATIONS FOR MODERATE IMPACT AREAS 1. SCOPE The material defined by these specifications is a clear, release liner backed, abrasion resistant urethane film with a water clear
5、pressure sensitive adhesive. Films B1 - B4 include a clearcoat applied over the urethane film to prevent film staining, yellowing, and increases weathering performance. Films B5 and B6 are typically not clearcoated. To differentiate between locations requiring chip resistant testing, a CAE model or
6、equivalent will be used to determine chip performance based on vehicle design. Ford engineers will determine areas of high and low chip probability. 2. APPLICATION These specifications were released to provide localized stone chip protection on painted body surfaces. A clean surface is recommended f
7、or tape application. A wetting solution (25% isopropyl alcohol/75% deionized water or S-802 Decal Lube or equivalent) may be recommended by the supplier to aid in application. Tape dimensions and premask (with or without) are specified on the engineering drawings. 3. REQUIREMENTS All testing to be d
8、one on finished production parts (i.e., film to be used to design intent and application on production substrate/paint). ENGINEERING MATERIAL SPECIFICATION WSS-M99J291-B1/B2/B3B/B4/B5/B6 Copyright 2017, Ford Global Technologies, LLC Page 2 of 6 3.1 APPROVED SOURCES This specification requires the us
9、e of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2
10、 CONSTRUCTION 3.2.1 Width and Length As specified on engineering drawing. 3.2.2 Premask As specified on engineering drawing. 3.3 FILM PROPERTIES Test Conditions: Material shall be conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 hours prior to
11、 testing and tested under the same conditions unless otherwise specified. 3.3.1 Appearance 3mm diameter - Evaluate paint surface by peeling half the urethane from the panel. - No paint chipping allowed - Paint scuff rating 6A 9A, SAE J400 Fig 3 -30 C Evaluation: - No continuous film lift 10mm 3.4.7.
12、2 1.41 L gravel B3/B4/B6 (SAE J400, 4” X 6” tape sample) 23 C Evaluation: - No film lift 3mm diameter - Evaluate paint surface by peeling half the urethane from the panel. - No chipping allowed - Paint scuff rating 6A 9A, SAE J400 Fig 3 -30 C Evaluation: - No continuous film lift 10mm 3.4.8 Shrinkag
13、e, Max. 1% Test Method: Expose sample in a mechanical convection oven for 30 minutes at 120 +/- 2C. The test shall be conducted 2 h after application of 25 x 100 mm strip of the material to a test panel. This test shall be conducted in both machine and cross-machine directions. 3.4.9 Storage Stabili
14、ty B1-B4 B5/B6 3.4.9.1 180 Peel Adhesion, Min. 450N/m 300N/m (ASTM D1000, except on current production paint/substrate. Store material sample 3 days at 48C, then apply to substrate and test per Section 3.4.1.1. Average of 3 samples.) ENGINEERING MATERIAL SPECIFICATION WSS-M99J291-B1/B2/B3B/B4/B5/B6
15、Copyright 2017, Ford Global Technologies, LLC Page 6 of 6 3.5 FINISHED PART REQUIREMENTS Color and uniformity Smoothness (absence of blisters) Absence of scratches and tool marks Match to print dimensions 3.7 FUNCTIONAL APPROVAL Materials being evaluated for approval to this specification shall be s
16、ubjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release. 4. GENERAL INFORMATION The information given below is provided for cla
17、rification and assistance in meeting the requirements of these specifications. 4.1 Painted electrocoated steel panel: Use current production paints as specified by Vehicle Operations Paint Engineering. Process panels at minimum engineering specification requirements for primer and topcoat thickness,
18、 target bake temperature. 4.2 Painted ESB-M3D145 SMC panels with ESB-M6J106 conductive primer: Use current production paints as specified by Vehicle Operations Paint Engineering. Process panels at minimum engineering specification requirements for primer and topcoat thickness, target bake temperature. 5. SUMMARY OF REVISIONS 2016 12 2 Removed 240 h salt spray from previous section 3.4.1 Update section 3.4.1.4 Cycle Exposure, was 4 h at 70 C Update section 3.4.6. Accelerated Weathering Method, was SAE J1960. Removed WSS-M99P1111-A and added those requirements into this specification.
