1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards FILM SELF ADHESIVE EDS-M-6806 ISSUED DATE: 1991. 04. 16 REVISED DATE: 2003. 06. 24 VERSION: 3 EDS-M-6806FILM-SELF ADHESIVE PAGE: 1/4 ISSUED DATE: 1991. 04. 16 REVISED DATE: 2003. 06. 24 VERSION: 3 GM DAEWOO Auto & Tec
2、hnology. 1. PURPOSE The purpose of this standard is to establish the material property of the film used in automotive exterior trim and control the quality. 2. SCOPE The explanation for parts in the lower part of automotive exterior trim, cautions and film of trim lamp. 3. MATERIAL Film applied with
3、 adhesive in one side and covered with protectant. (If possible, the film side has the impact resistance.) 4. REQUIREMENTS Designations Test Methods Specifications 4.1. Structure 4.1.1. Film (without adhesive) (1) Material Polypropylene, polyethylene coated with PVC(2) Weight per unit area EDS-T-761
4、1 260 g/m2 min. (3) Thickness EDS-T-7624-1A 0.3 0.4 mm 4.1.2. Adhesive (1) Material Determination with IR-spectrum for initial sample4.1.3. Protectant of adhesive side (1) Tensile strength EDS-T-7132-J 90 N/cm min. It must be higher than adhesion of adhesive side. 4.1.4. Protectant of film side (if
5、necessary) (1) Tensile strength EDS-T-7132-J 15 N/cm min. It must be higher than adhesion of adhesive side. 4.2. Requirements for film (Test shall be performed on film applied with adhesive without protectant.) 4.2.1. Tensile strength EDS-T-7132-F (1) Warp direction 900 N/cm2min. (2) Weft direction
6、880 N/cm2min. 4.2.2. Elongation at break EDS-T-7132-F (1) Warp direction 250 300 % (2) Weft direction 250 300 % EDS-M-6806FILM-SELF ADHESIVE PAGE: 2/4 ISSUED DATE: 1991. 04. 16 REVISED DATE: 2003. 06. 24 VERSION: 3 GM DAEWOO Auto & Technology. Designations Test Methods Specifications 4.2.3. Temperat
7、ure stability EDS-T-7604-1B (1) Dimensional change (Warp direction) 3.0 % max.4.2.4. Softness (Warp direction) EDS-T-7626-A 3.5 5.0 Cm 4.2.5. Color fastness to artificial light. EDS-T-7415 Rating 7 min. 4.3. Requirements of adhesive state on film (Condition of using panel and lacquer is same with th
8、e production) 4.3.1. Resistance to peel EDS-T-7676 (1) +235K 24 hr 4 N/cm min. (2) +235K 24 hr +1005K 15 min +235K 8 N/cm min.(3) +235K 24hr +802.5K 120 hr +235K 8 N/cm min. (4) +235K24 hr +402.5K100% RH 70 hr +235K 2 hr 4 N/cm min.(5) +235K24 hr +1005K 15 min -303K 16 hr +235K 4 N/cm min.4.3.2. Low
9、 temperature test Film shall be adhered to lacquer coating side and stored 24 hours at 235K 16 hours at -303K and rubbed with polyamide brush 6 times to and fro at -303K with force of (102)N. No detachment of film edges and adverse change4.3.3. Resistance to fuel EDS-T-7617-1B Test fuel : GME L0001
10、The test piece adhered to steel plate shall be dipped into test fuel at normal temperature for 10 seconds, removed from fuel and dried for 20 seconds. (to and fro 10 times) No change of adhesive side surface of test piece and luster.4.3.4. Resistance to cleaning Test solution : water 100vol% +automo
11、bile shampoo 1voL% The test piece adhered to steel plate shall be dipped into test solution at normal temperature for 24 hours. No change of adhesion4.3.5. Resistance to impact-saline solution EDS-T-7738 Rating 1 EDS-M-6806FILM-SELF ADHESIVE PAGE: 3/4 ISSUED DATE: 1991. 04. 16 REVISED DATE: 2003. 06
12、. 24 VERSION: 3 GM DAEWOO Auto & Technology. Designations Test Methods Specifications 4.3.6. Resistance to stone impact EDS-T-7701 (1) B Rating 1 (2) C Rating 1 4.3.7. Adhesive strength of overlapped, adhered film (1) Adhesion of film on plane No detachment of adhesive area2 films of 50mm width, 100
13、mm length shall be cut and adhered to test plate (1002501)mm) at 235K24hrs The overlapping length is about 10mm. (2) Adhesion of film on bent plate No detachment of adhesive area2 coating sheet plates (1002501)mm) are bent by spindle of 70 mm diameter concentrically. 4 films of 50mm width, 100mm len
14、gth are cut and adhered to overlap 10mm from the vertex of sheet plate at 23 and 50 (hair drier) respectively. - Test condition: +235K24 hr +8024 hr +2324 hr 4.3.8. Resistance to cleaning Test solution : water 80vol% +petroleum 20vol% Temperature of solution : +80 The half of test piece adhered to s
15、teel plate is applied with protective wax (L0000555) and stored 24hours at +235K. The detergent of high temperature and pressure is spouted on the whole surface of test piece for 30 seconds. The distance of test piece surface and jet is 205cm. No surface change and detachment of adhesive area.4.4. S
16、urface change test of film in adhesion 4.4.1. Resistance to fuel The test surface is rubbed to and fro with the cotton soaked to GME L0001, 6 times with a force of 102N. No discoloration4.4.2. Protectant test for steel plate Primer-coated and phosphated sheet metal shall be 250100 mm. The both side
17、of film is strongly rubbed with a protectant for 5 seconds. No crater marks or other changes on surface of painted sheet plateEDS-M-6806FILM-SELF ADHESIVE PAGE: 4/4 ISSUED DATE: 1991. 04. 16 REVISED DATE: 2003. 06. 24 VERSION: 3 GM DAEWOO Auto & Technology. 5. ADDITIONAL REQUIREMENTS 5.1. No other s
18、pecial changes must occur for at least 12 months when stored at +5 to +30 in dry condition without direct solar radiation. 5.2. No permanent marks must remain when the force is exerted enough to write on the surface of screen printing and the protectant shall be easily removed without breaking of fi
19、lm. 5.3. For details, refer to drawings. 6. APPROVAL AND QUALITY ASSURANCE PROCEDURE All raw material shall be approved and regularly inspected for its quality prior to and during mass production delivery according to approval and quality assurance procedure for chemical raw materials (Spec. no. EDS
20、-M-0102) 7. AUTOMOTIVE RESTRICTED HAZARDOUS SUBSTANCES Materials and components of parts must comply with EDS-A-0101. 8. CODING SYSTEM This material specification shall be indicated in drawings or other specifications as follows. “EDS-M-6806” 9. RELATED STANDARDS EDS-A-0101 Material coding system of
21、 vehicle plastic and elastomer components and materials EDS-M-0102 Procedures for approval of chemical raw material and quality control EDS-T-7132 Test method for tensile strength & elongation EDS-T-7415 Test method for determining color fastness EDS-T-7604 Test method for determining the temperatur
22、e stability of automotive trim materials EDS-T-7611 Test method for determining weight per unit area EDS-T-7617 Determination of resistance to fuel of automotive exterior trim components EDS-T-7624 Test method for determining thickness of trim materials EDS-T-7676 Determining of the resistance to peel of self adhesive tapes and foils EDS-T-7701 Determination of resistance to stone impact of surface coatings. plastics and self adhesive film EDS-T-7738 Test method for determining the impact-saline solution resistance of organic coatings
