Application of constant temperature and Humidity Chamber in coating performance test

Purpose

The main purpose of using a constant temperature and Humidity Chamber to test the performance of coatings is to evaluate the durability and performance of coatings under different environmental conditions in order to formulate better coating formulations, production processes and usage guidelines. By testing the adhesion, durability, scratch resistance, chemical corrosion resistance and other properties of coatings under different conditions, it can help coating manufacturers and users to better understand the performance characteristics of coatings and choose more suitable coating types and brand, thus ensuring the performance and durability of the paint in use. In addition, the use of constant temperature and Humidity Chambers to test coating properties can also be used for quality control and product certification to ensure that coatings comply with relevant standards and specifications.

test steps

1. It is a common method to test the performance of coatings using a constant temperature and Humidity Chamber. The following are the general steps:

2. Prepare the test sample: Apply the desired coating evenly on a glass or metal plate, as needed, and allow to dry.

3. Adjust the constant temperature and Humidity Chamber: adjust the temperature and humidity of the constant temperature and Humidity Chamber to the required test conditions. The common temperature is 20°C or 25°C, and the humidity can be adjusted as needed.

4. Put the sample into the constant temperature and Humidity Chamber: put the prepared sample into the constant temperature and Humidity Chamber, and ensure that the position of the sample in the box is stable and will not move.

5. Carry out tests: According to needs, different tests can be carried out, such as: weather resistance test, adhesion test, hardness test, scratch resistance test, etc. During the test, it is necessary to regularly record the test results, such as time, temperature, humidity, test method, sample performance, etc.

6. Analyze test results: Summarize and analyze the test results to evaluate the performance and durability of the coating, and make necessary improvements and adjustments.

7. NBCHAO reminds you: when using a constant temperature and Humidity Chamber to test the performance of coatings, you need to pay attention to the following points:

8. The preparation and placement of samples should pay attention to the cleanliness and dryness of the environment, so as not to affect the test results.

9. According to different test requirements, it is necessary to adjust the temperature and humidity of the constant temperature and Humidity Chamber to ensure the accuracy of the test results.

10. During the test, the test results need to be recorded regularly for data analysis and comparison.

Testing coating properties using a constant temperature and Humidity Chamber may require the use of the following instruments:

Constant temperature and Humidity Chamber: used to maintain a certain temperature and humidity conditions to ensure that the coating is tested under the same environmental conditions.

Drop hammer impact Tester: It is used to test the adhesion of paint, usually using a drop hammer with steel balls of different sizes, and select the corresponding steel ball size according to the needs.

Hardness Tester: It is used to test the hardness of coatings, generally used is Dublin Hardness Tester or pencil Hardness Tester.

Scratch test machine: used to test the scratch resistance of coatings, usually a scratch test machine with scratch heads of different hardness and shape is used.

Color difference meter: used to test the color and color difference of paint.

Other testing instruments: Other testing instruments can be used as needed, such as UV aging chamber for testing the weather resistance of coatings, chemical corrosion Tester for testing the chemical resistance of coatings, etc.

It is necessary to select corresponding instruments and equipment according to different test requirements, and ensure their accuracy and reliability in the test process.