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ED coatings - Determination of original paint, working fluid and application performanc

dgkede
2025-09-05
Determination method for sieve residue (filtered residue)
Measurement steps
1. Wash the nylon filter (325 mesh) with tap water, then rinse with deionized water. Place the nylon filter in a pre prepared oven and dry at 105 ℃ for 15 minutes.
2. After cooling the nylon filter to room temperature, accurately weigh it (W0).
3. Filter 1000ml of the electrophoresis paint working solution or freshly produced tank solution with a weighed nylon filter, and rinse the filtered residue with a washing bottle to remove "floating paint" and other impurities.
4. If the test solution is a two-component color paste, dilute the paste with deionized water in a 1:1 ratio and then filter it.
5. Place the filter with residue in a 105 ℃ oven and dry for 30 minutes.
6. After cooling the filter screen, weigh it again (W1).

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