1、Manufacturing Standards Paint Protective - Bio-Dearadable Acrvlic i. Scope The material defined by this standard is a bio-degradable clear acrylic co-polymer coating which is designed to protect automotive finishes ie (enamels, chrome, anodised aluminium and plastic parts) in storage and in transit
2、against weathering and industrial fallout. 2. ApDlication The material shall be supplied ready for application and must be suitable for use with conventional, airless and electrostatic spray methods. 3. Reauirements 3.1 ComDosition A solution and/or dispersion of acrylic polymers in water and alcoho
3、l solvents. 3.2 Oraanic Solvents As approved initial sample 3.3 Non-Volatile 15% f 1% W/W FLTM. BI 102-01 3.4 SDecific Gravitv As approved initial sample ASTM. 1475 3.5 Combustion/Flammability The material must not support combustion when tested in accordance with BS 3900 All or ASTM D 4206. 3.6 Dvi
4、na Time The wet film required to product a 10 micron dry film thickness must be touch dry within 3-5 minutes following assisted warm air blower. Manufacninng AdministraCion Protecti ves u-MJO99-8002 June 1995 I Page 1 um imn Soot -7 m 009LbU 001i7839 TU7 W Manufacturing Standards 3.7 4. 4.1 4.2 4.3
5、4.4 Storaae Stability The material must be stable during storage for a minimum period of six months between and 28% without any coagulation, crystallisation or separation. Film Properties Water Resistance The applied film must be water resistant when tested as follows:- Test Method Spray a panel to
6、give a 10 micron dry film thickness, 1 min after the film is touch dry incline the panel at 452 and rinse the film for 1 minute with demin water. Water discharge opening Flow rate Distance discharge Opening to panel 10 mm Internal diameter 2 litres/minute 15 cm No damage or dulling of the protective
7、 is allowed after the test. Amearance and Thickness A clear hard continuous dry film of 5-10 microns must be readily obtained on a vertical panel. (Film thickness according to FLTM BI 156-01). Heat Resistance When tested as follows the film shall not soften, sag or degrade and be readily removed by
8、the approved removal procedure, without any detrimental effect to the enamelled surface. Test method:- Panels as prepared in paragraph 4.4 are coated with a 10 micron dry film thickness of the protective. Test panels are placed vertically in an oven and maintained at a metal temperature of 105+ - 2%
9、 for 1 hour. Preoaration of Test Panels Test panels shall be prepared according to FLTM BI 103-02 with following finishes- a) Current production enamels SK-M98J-9552-A, ESK-M99J312/31 SA1 and SK- M32J9553-A normal and catalyst baked. b) Decorative stone peck resistant finishes, ESK-M99J-312/313A, de
10、corative metallic finish WSK-M2J221-8 and exterior paint for plastics, SKM-99J-9578-BA, ESK-M 16J3-A and ESK-M16J4-A. Manufacrwng Administration Protecti ves -MJO99-8302 June 1995 sem -. ul ., win amn Page 2 Manufacturing Standards 5. Protective ProDerties 5.1 Industrial Fallout ExDosure Test Two la
11、rge white enamelled panels prepared in accordance with paragraph 4.4 are placed horizontally in a Ford factory test area and subjected to industrial fallout for periods of 2 weeks and 6 months. Also to be exposed concurrently with the painted panels, are test panels of the following:- a) Glass b) A.
12、B.S. plastic trim c) Polycarbonate and polypropolene bumpers d) Painted plastic bumpers e) Bright metal trim Mask approximately one quarter of the test panels and spray the protective to give a 1 O micron dry film thickness. Expose for the same periods as the painted panels. As a comparative control
13、, enamelled panels prepared as per para 4.4, and surfaces a to e, are to be coated with an approved protective material and exposed concurrently with the test material. 5.2 Florida Exuosure Test A complete colour range of panels prepared in accordance with paragraph 4.4 shall undergo Florida exposur
14、e for six months at an angle of 45“ facing south in accordance with FLTM 61-1 60-01 . As a comparative controi, enamelled panels as per para 4.4 are to be coated with an approved protective material and exposed concurrentfy with the test material. 6. Protection Reauirements 6.1 Ease of Removal After
15、 all exposures shown in paragraph 6.2, 6.3, 6.4 and 6.5 the protective coating must be readily removable. The ease of removal shall be at least equivalent to that of the originally approved material. Test Method Remove the exposed coatings using an approved solubising product (UMB-005- 8036l8) dilut
16、ed and applied as per the suppliers instructions. Rinse thoroughly with towns water, blow off dry with compressed air. Check for ease of removal dulling or damage against the approved control material. Manufacturing Administration Protecti ves U -M 5099-8002 Page 3 Manufacturing Standards 1 6.2 Prot
17、ection Aaainst Industrial Fallout After panels have been exposed as per paragraph 5.1 following the approved removal procedure the enamelled surface must not show fallout damage indicated by the presence of brown pin points, stains and particle impregnation. 6.3 Protection Aaainst Florida ExDosure A
18、fter the panels shown in paragraph 5.2 have had the protective coating removed there must be no evidence of the following paint-defects, on both normal baked and catalysed materiais: a) Dulling (protective impregnation) b) Discolouration d) Exudation of protection: None after panels are left for fiv
19、e days at room temperature c) Loss of gloss 6.4 Water Immersion After removal of the protective, panels from section 6.3 are to be subjected to the water immersion test FLTM BI-104-01 for 24 hours. Note: Any panels showing blistering on unprotected exposed areas shall be invalid. 6.5 Protection Aaai
20、nst Spillaae The protective coating must give adequate protection against accidental spillage of: a) Anti-freeze solution ESK-M8B18-A or SM-14J-23A (50% by volume with water) b) Engine oil c) Transmission oil d) Battery acid solution (30% sulphuric acid) e) Brake fluid Note: New protectives must be
21、evaluated on a comparative basis against panels protected with approved materials. Test Method One half of a white enamelled panel and a light metallic colour normal and catalysed baked are sprayed with the protective to give a dry film thickness of 10 microns. After conditioning the coating for 24
22、hours at ambient temperature, the test chemicals are applied by dropping onto the protected and unprotected areas of the painted surfaces. After ten days storage at room temperature the protective is removed and examined for surface failures. Resistance to swelling, blistering, discolouration etc mu
23、st be at least equivalent to the approved control material. ManufaCtunRg Administration Protecti ves U-MJO99-8002 June 1995 um imn smt -7 al ;/ Page 4 Manufacturing Standards 7. SUDDV Instructions and Special Reauirements for Infra-Red SDectroDhotometry 7.1 All materials supplied to this specificati
24、on shall have an infra-red curve that corresponds to the master curve of the water free original approved sample on file in the quality control laboratory. 7.2 SDecial Reauirements See Ford Manufacturing Standard W-MXX-Standard requirements applicable to procurement of non-production materials, machines and equipment. Substance restrictions imposed by law, regulations or Ford, apply to the items addressed by this document. The restrictions are defined in engineering material specifications WSS- M99P-9999-Al. Manufacrwing Administration Protecti ves U-MJ099-8002 Page 5
