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（KODEST)Testing method for shrinkage materials
dgkede
2025-07-15
1. Spray plate method
1. 1. Elastic components (such as hoses, O-rings, seals, etc.): The coated material can be directly placed on the template for friction, tapping, or rolling, and then subjected to spray plate testing directly on the template;
1. 2. Oil and grease: The tested substance should be coated with a 2cm wide cross shaped oil film on the test sample, and then directly subjected to spray plate testing on the sample;
1. 3. Solid materials: The tested sample should be placed on the test template, soaked in about 2ml of isopropanol for about 10 seconds, and then taken to the tested sample for direct spray plate testing after the solvent evaporates completely;
Paint is easy to use in white.
2. Swimming board method:
2. 1. Oil and grease: Add 5-100ppm samples separately, stir for 10-20 minutes, and then proceed with plate electrophoresis;
2. 2. Solid substances or parts: Soak in electrophoretic solvent for about 10 minutes, then add the solvent to the bath, stir for 10-20 minutes, and proceed with plate electrophoresis;
Electrophoretic L-plate.
REPORT