As long as it involves release force testing, there will be some standard conditions. Release force test, standard test temperature is 23 ± 2 ℃, test tape width is 1 inch (2.54cm), and tensile machine speed is 300mm/min. Common fluoride release film is  four dimensional release film test tape MY2G tape. Some use other tape, but MY2G is the most common. The test methods for standing test, 20 minute release force, 24 hour room temperature release force, and 24 hour aging are consistent with those for silicon release film.

There are many methods for testing residual adhesion. Provide a relatively universal testing method for your reference. The steps are as follows: a. Apply MY2Y tape with a pressure roller as the sample to be tested; b. Prepare a sample with a load of 70g/cm2, place it in a 70 degree oven, and place it in a 20 degree oven for hours; d. Remove the sample from the oven and cool for 2-4 hours; e. MY2G tape from Peel it off, then use a pressure roller to attach PET to the original film (or standard test mirror steel plate), cut it into test strips, and place them for 20 minutes to obtain the value A; f. Apply MY2G tape to PET film (or standard test mirror steel plate) and test the release force for 20 minutes. Obtain the value. B; g. Residual adhesion rate SA=(A/B) x100%; h. Test 3-4 samples per sample and complete the testing.

Some customers also perform step B by increasing the oven temperature and shortening the storage time. In this way, residual knot rate can be tested as soon as possible on the production line. Determine the stability of the product.

In practical applications, many customers still test longer data. For example, 30 days of room temperature, or 7 days of aging, 14 days of data to infer long-term stability and aging climb. Although not 100% of the actual long-term tape data truly reflects reality, there is still a lot of reference.

When fluoride release film in actual use, there are three processes: cold sticker, hot sticker, and wet coating. Cold sticker, no high temperature, most silicone does not react with fluorine release agents, can refer to four-dimensional MY2G data. If it is a hot post, there are several testing methods. Basically, they stick the adhesive tape specified by the customer. The difference between temperature and time. Most are at 150 ℃ for 3 minutes or 90 ℃ for 1 hour. There are a few other testing methods available. There is a significant difference between good and poor matching. The fluoride film has good compatibility and can increase the release force to within 15g/inch after 20 minutes of 5-8 minutes of release force. The compatibility is poor, and the silica gel reacts with the fluorine release agent, resulting in a significant increase in release force to over 200g/inch.

The research and development of wet coated fluorine release film is a high-tech issue. Currently, it is recognized as the most difficult research and development project in the industry. How to make fluorine release films that are suitable for wet coating is the direction of most people in the industry. Only a few companies can achieve this. Then enter the oven for curing. After curing, stick the original PET film. After placing for a period of time, cut into 1 inch wide piece and test the release force. Most of the symptoms are sticking tightly. Only those with good matching can be easily peeled off.