1、GM DAEWOO Auto & Technology. EDS Engineering, GM DAEWOO Auto & Technology Standards ESTA CLEANING THINNER EDS-M-8718 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 EDS-M-8718ESTA CLEANING THINNER PAGE: 1/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Aut
2、o & Technology. 1. PURPOSE This standard specifies the ESTA cleaning thinner for cleaning of apparatus for color change in paint shop. 2. SCOPE This standard applies to cleaning of paints that are remained in the pipe and spray machines such as electro static bell, VOJOUFSSVQUJCMF spray gun or manua
3、l spray gun etc., after spraying of undiluted paint in paint shop. 3. GENERAL DESCRIPTION Mixture with organic solvent 4. QUALITIES 4.1. General qualities 4.1.1. Prohibited substances : Benzene, chlorinated hydrocarbons. 4.1.2. Appearance : It shall show no signs of pollution by foreign matters such
4、 as cohesive matters and moisture when visually inspected, and the color shall be colorless and transparent 4.1.3. Workability : It shall pose no difficulty in the working process due to bad odor and has excellent cleaning for each paint in working process . 4.2. Performance : When tested to clause
5、7, the test results shall meet the required physical properties in clause 6.1. 5. TEST CONDITIONS 5.1. Standard state of test place 5.1.1. In principle, test shall be conducted at a temperature of 202 and humidity of 655%. 5.1.2. Otherwise, temperature and humidity shall be recorded in the test repo
6、rt. 5.2. Conditions of test sample and paints The panel shall be cut a fixed size from cold-rolled carbon steel sheets, the undiluted paint shall be performed with the paint and under conditions currently used in the paint shop. 6. REQUIREMENTS 6.1. Properties Test Items Test Conditions Specificatio
7、ns Test MethodsColor Visual inspectionColorless and transparent 7.1.2 Odor Sensuous inspection No severe odor 7.1.3 EDS-M-8718ESTA CLEANING THINNER PAGE: 2/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. Test Items Test Conditions Specifications Test Me
8、thodsSpecific gravity Gravimeter (202) 0.8460.02 7.1.4Viscosity Brookfield viscometer Spindle #1 / RPM 100 at (202) 105 cps 7.1.5Flash point Flash point tester 23 min. 7.1.6 Impurities Use 3W of filter Free from suspended matter and mechanical impurities 7.1.7 Solubility and compatibility for diluti
9、on Dilute and dissolve the Primer / Solid / Two coat / Clear undiluted paint with cleaning thinner, and then apply it. There shall be good solubility for dilution, and the film shall be no abnormality 7.1.8 Primer Test sample for Electro-deposition Apply primer diluted paint with wet 70W . Leave it
10、at room temperature for 10minutes, and dip it to the cleaning thinner for 30seconds and then leave it at room temperature for 20seconds. Repeat dipping 3 times. It shall be cleaned perfectly (100%) 7.1.9 Solid Test sample for Electro-deposition Apply solid diluted paint with wet 65W . The other proc
11、edure equal to above It shall be cleaned perfectly (100%) 7.1.9 Clear Test sample for Electro-deposition Apply clear diluted paint with wet 105W . The other procedure equal to above It shall be cleaned perfectly (100%) 7.1.9 Cleaning Two coat Test sample for Electro-deposition Apply clear diluted pa
12、int with wet 105W . Leave it at room temperature for 10minutes, and dip it to the cleaning thinner for 30seconds and then leave it at room temperature for 20seconds. Repeat dipping 3 times. It shall be cleaned perfectly (100%) 7.1.9 Content of composition Gas chromatographic analysis (KS M 6060) - 7
13、.1.10 6.2. Properties at delivery 6.2.1. Composition: Composition shall be notified separately. 6.2.2. Purity : There shall be free from suspended matter and mechanical impurities, shall be transparent. The purity of each shipment has to be certified with a special remark that the solvent is deliver
14、ed in cleaned vessels. 6.2.3. Viscosity : 105cps (Brookfield viscometer Spindle #1/RPM 100 at 202) 6.2.4. Volume of residual substance when distilling (vol.%) : 1% max. 6.2.5. Flash point of solvent : 23 min. 6.2.6. Odor : It shall pose no difficulty in the working process due to bad odor EDS-M-8718
15、ESTA CLEANING THINNER PAGE: 3/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. 6.2.7. Delivered temperature : +15 25 6.3. Requirements of working process 6.3.1. Workability : . It shall be good workability when cleaning of paints that are remained in the
16、 electro static bell, spray gun and pipe, and It shall pose no difficulty in the working process due to bad odor. 6.3.2. Dilution, solubility and compatibility : A little remained cleaning thinner can be diluted by diluted paints(Primer / Solid / Two coat / Clear), however, the properties of materia
17、l shall be no abnormality. 6.3.3. Cleaning performance : It shall be good cleaning performance for each diluted paint(Primer/Solid/Two coat/Clear). 6.4. Additional requirements 6.4.1. Storage : It shall be kept at +1525, and dry place with well-ventilated and apart from heating source or direct ray
18、of light. 6.4.2. Delivery : Delivery may be established by agreement between purchaser and supplier. 7. TEST METHODS 7.1. Test methods 7.1.1. Preparation of test solution and test sample (1) Preparation of test solution : The primer, solid, two coat and clear undiluted paints shall be taken more tha
19、n 300L of paints under conditions currently used in the paint shop, and put it into cleaned beaker. (2) Preparation of test sample 1) Prepare the 100 X 250X size of cold-rolled carbon steel sheets. 2) Clean the test sample using brush with solvent, and dry it. 3) Prepare the test sample with pre-con
20、ditioning and Electro-deposition at Electro-deposition line in paint shop. 7.1.2. Color (1) Purpose : This test is to decide color of thinner. (2) Test method 1) Maintain test solution at 202, and inspect test solution in the vessel visually. 2) There shall be free from suspended matter and mechanic
21、al impurities, shall be transparent when visual inspection. 7.1.3. Odor (1) Purpose : This test is to decide odor of thinner. (2) Test method 1) Maintain test solution at 202, and inspect test solution in the vessel sensuously. 2) There shall be no severe odor when sensuous inspection. EDS-M-8718EST
22、A CLEANING THINNER PAGE: 4/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. 7.1.4. Specific gravity (1) Purpose : This test is to measure specific gravity of thinner. (2) Test apparatus 1) Gravimeter 2) Measuring cylinder (3) Test method 1) Maintain test
23、 solution at 202, and fill test solution with measuring cylinder transparent-scaled 2) Put Gravimeter and inspect the scale of the meeting point between Gravimeter and surface of test solution at a straight line. 3) The average shall be 0.8460.02 when measuring 3 times. 7.1.5. Viscosity (1) Purpose
24、: This test is to measure viscosity of thinner. (2) Test apparatus 1) RVTD type of Brookfield viscometer (Spindle #1/RPM 100) 2) Beaker(500L ) (3) Test method 1) Adjust test solution to 202, and fill the 400L of test solution with beaker(500L ). 2) Insert Spindle #1 into Brookfield viscometer, set s
25、urface of test solution by indication line with a straight line, and measure viscosity at a rate of RPM 100. 3) Record value of viscosity under stabilized condition, the average shall be 105cps when measuring 3 times. 7.1.6. Flash point (1) Purpose : This test is to measure flash point of thinner. (
26、2) Test apparatus 1) Flash point tester 2) Warming water 3) Thermometer (-5+110) (3) Test method 1) Install the flash point tester horizontally indoors with little airflow and partition. 2) For warming water, use water with temperature lower than flash point of test solution by 10. 3) Take 500.5L of
27、 test solution with a measuring cylinder and station it until foam is removed. Then, pour the test solution into a test solution cup to a level. - The preliminary equipment of test solution shall be maintained with temperature lower than flash point by 1 previously. 4) Put the lid of test solution c
28、up, attached a thermometer(-5+110), on the test solution cup.(The inside of lid shall be cleaned previously). 5) Open the gas valve, ignite the nozzle, and adjust the test flame standard bulb to 3.5X . 6) Heat warming water so that test solution temperature rises by 0.5 every 253 seconds. 7) When te
29、st solution temperature reaches a point 6 8 lower than expected flash point, conduct flash point EDS-M-8718ESTA CLEANING THINNER PAGE: 5/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. test with test flame. If the test flame recovers to the original sta
30、te within 1 second without being extinguished, proceed with flash point test whenever test solution temperature rises by 0.5. 8) If flame is surely ignited inside the test solution cup after test flame is applied, stop heating and record measured flash point. 9) The average shall be more than 23 whe
31、n measuring 3 times. 7.1.7. Impurities (1) Purpose : This test is to evaluate impurities of thinner. (2) Test apparatus 1) Filter : Diameter 3W 3) Beaker(500L ) (3) Test method 1) Put 100cc of test solution on diameter 3W of filter and filter the test solution. 2) Check the test solution with visual
32、 inspection after filtering. 3) Repeat the test methods specified in clause 1) and 2) above three times, and there shall be free from suspended matter and mechanical impurities, shall be colorless and transparent. 7.1.8. Solubility and compatibility for dilution (1) Purpose : This test is to measure
33、 solubility and compatibility for dilution with diluted paint of thinner. (2) Test apparatus 1) Beaker(500L ) 2) Test sample : Size 100250mm 3) Diluted paint(Primer/Solid/Two Coat/Clear) 300L each. 4) Stirring bar (3) Test method 1) Primer diluted paint a. Maintain test solution at 202, take 300L of
34、 primer diluted paint with beaker. b. Add 10L of cleaning thinner to diluted paint and stir the mixture with stirring bar and check the solubility for dilution. c. The film shall be no abnormality, after applying the dissolved paint to Electro-deposition test sample with specified condition and baki
35、ng it under specified condition. 2) Solid diluted paint a. Maintain test solution at 202, take 300L of primer diluted paint with beaker. b. Add 10L of cleaning thinner to diluted paint and stir the mixture with stirring bar and check the solubility for dilution. c. The film shall be no abnormality,
36、after applying the solid diluted paint to primer sufacer test sample with specified condition and baking it under specified condition. 3) Two coat diluted paint a. Maintain test solution at 202, take 300L of primer diluted paint with beaker. EDS-M-8718ESTA CLEANING THINNER PAGE: 6/8 ISSUED DATE: 198
37、7. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. b. Add 10L of cleaning thinner to diluted paint and stir the mixture with stirring bar and check the solubility for dilution. c. The film shall be no abnormality, after applying the two coat diluted paint to primer sufacer
38、test sample with specified condition and baking it under specified condition. 4) Clear coat diluted paint a. Maintain test solution at 202, take 300L of primer diluted paint with beaker. b. Add 10L of cleaning thinner to diluted paint and stir the mixture with stirring bar and check the solubility f
39、or dilution. c. The film shall be no abnormality, after applying the clear diluted paint to two coat test sample with specified condition and baking it under specified condition. 7.1.9. Cleaning performance (1) Purpose : This test is to check cleaning performance of thinner. (2) Test apparatus 1) Co
40、ld-rolled carbon steel sheets : Size 100250mm 2) Beaker(500L ) 3) Diluted paint (Primer/Solid/Two Coat/Clear) 200L each. 4) Injector 5) Stop watch (3) Test method 1) Primer diluted paint a. Maintain cleaning thinner at 202, take 400L of cleaning thinner with beaker. b. Apply it to the cold-rolled ca
41、rbon steel sheets with 100250mm size as shown on FIG.1. c. Apply 10050X size of primer diluted paint with wet 70W . d. Leave it at room temperature for 10minutes, and dip it to the cleaning thinner for 30seconds vertically and then take it out, and then leave it at room temperature for 20seconds. e.
42、 It shall be cleaned perfectly (100%) after repeat dipping 3 times. FIG.1. Test sample for applying 50 mm50 mm150mm250mmCold-rolled carbon steel sheets Applying with each diluted paint 100 mm EDS-M-8718ESTA CLEANING THINNER PAGE: 7/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM
43、 DAEWOO Auto & Technology. 2) Solid diluted paint a. Maintain cleaning thinner at 202, take 400L of cleaning thinner with beaker. b. Apply it to the cold-rolled carbon steel sheets with 100250mm size as shown on FIG.1. c. Apply 10050X size of solid diluted paint with wet 65W . d. Leave it at room te
44、mperature for 10minutes, and dip it to the cleaning thinner for 30seconds vertically and then take it out, and then leave it at room temperature for 20seconds. e. It shall be cleaned perfectly (100%) after repeat dipping 3 times. 3) Clear diluted paint a. Maintain cleaning thinner at 202, take 400L
45、of cleaning thinner with beaker. b. Apply it to the cold-rolled carbon steel sheets with 100250mm size as shown on FIG.1. c. Apply 10050X size of clear diluted paint with wet 105W . d. Leave it at room temperature for 10minutes, and dip it to the cleaning thinner for 30seconds vertically and then ta
46、ke it out, and then leave it at room temperature for 20seconds. e. It shall be cleaned perfectly (100%) after repeat dipping 3 times. 4) Two coat diluted paint a. Apply two coat diluted paint to the 10025mm size of cold-rolled carbon steel sheets with wet 100W as shown on FIG.2. b. Leave it at room
47、temperature for 10minutes, and drop the 20L of cleaning thinner to the upper of film of 45vertical test sample using an injector for 10seconds, and then leave it at room temperature for 20seconds. c. It shall be cleaned perfectly (100%) after repeat dropping 3 times. FIG.2. Test sample for applying
48、7.1.10. Content of composition (1) Purpose : This test is to measure content of composition of thinner. (2) Test apparatus 1) Gas chromatography (3) Test method(Refer to KS M 6060) 1) Content of acetone : The content shall be measured by gas chromatographic analysis. 125mm25 mm100mm250mmCold-rolled
49、carbon steel sheets Applying with two coat diluted paint 100 mm EDS-M-8718ESTA CLEANING THINNER PAGE: 8/8 ISSUED DATE: 1987. 02. 01 REVISED DATE: 2007. 08. 22 VERSION: 4 GM DAEWOO Auto & Technology. 2) Content of EA : The content shall be measured by gas chromatographic analysis. 3) Content of IPA : The content shall be measured by gas chromatographic analysis. 4) Content of TOL : The
