Method for detecting solid content of electrophoretic coating

The solid portion refers to the percentage of the remaining dry resin and the pigment portion after the electrophoretic coating is heated at 105 ° C for 3 hours. The detection methods are generally as follows:

Standard "GB/T1725-79 (89)"

test methods

equipment

Porcelain crucible: 25ml

Glass dryer with color-changing silicone

Thermometer: 0-300 ° C

Balance: the sensitivity is 0.01g

Blasting oven

Method steps:

Weigh 2-4g of paint to the nearest 0.01g, then put it in a blast oven that has been heated to the specified temperature for a certain period of time, take it out and put it into a desiccator, cool it to room temperature, weigh it, then put it in After baking for a specified time in the oven at the specified temperature, after cooling to room temperature in a desiccator, weigh it (sampling more than 2 groups at the same time)

Calculation:

Solids = sample weight after baking / sample weight × 100%

When measuring, the average value can be calculated by taking two to three parallel experiments.

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Label: Coating Electrophoresis Detection Method Dryer Solid

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