[Film Properties and Measurements] - film impact resistance measurement

Coating impact resistance measurement is a method to evaluate the stability of coatings under impact or impact. It is mainly used to test the durability and impact resistance of coatings under impact or impact.

The measurement of the impact resistance of the coating film is usually tested using the impact test. This test can place the coating sample in the impact test instrument for multiple impacts or impacts to test the durability and impact resistance of the coating under the action of impact or impact. During the test, parameters such as the weight, impact height, impact angle of the impact test instrument can be adjusted to simulate different impact environments. During the test, changes in properties such as appearance, color, adhesion, weight and hardness of the coating sample are detected to evaluate the impact resistance of the coating.

Coating film impact resistance measurement can be used to evaluate the durability and stability of various types of coatings, such as automotive paints, architectural coatings, electronic products, etc. By measuring the performance changes of coatings under impact or impact, the durability and life of coatings can be predicted, providing basic data for formulating coating maintenance and improvement programs.

The following is a commonly used method for measuring the impact resistance of coating films:

Equipment preparation

Impact testing device: including guide rail, hammer head, bracket, etc.

Sample: The coating sample that needs to meet the test requirements.

Measuring devices: such as vernier calipers, measuring tools, etc.

Sample preparation

Cut to specific shapes and sizes according to test requirements.

Sand the coated surface with fine sandpaper to make it smooth.

Wipe clean with anhydrous alcohol.

Testing process

Secure the sample to the holder.

Install the hammer on the guide rail of the impact testing device.

Free drop of the hammer from a specific height (usually 50/100 cm), hitting the sample.

Observe the surface of the sample for breakage, cracking or peeling.

Repeat the test several times according to the test requirements to obtain accurate test results.

Test results

It is evaluated according to the test results, and the impact resistance of the coating film is usually evaluated according to parameters such as the strength of the damage or the impact height.

The test results can be used to guide the improvement and optimization of coating formulations to improve the impact resistance of coating films.