Peeling Force Of Silicone Release Paper
Feb 24, 2024
The peeling force of silicone release paper mainly depends on the silicone oil formula and coating amount. When the silicone oil formula remains unchanged, the coating amount directly affects the peeling performance. A higher coating amount can densely cover the base paper or coated base paper to ensure uniform distribution of silicone oil.
However, if the coating amount of silicone oil is low, coating leakage and other phenomena may easily occur, resulting in poor peeling. In order to save costs, some release coating suppliers reduce the amount of silicone oil applied, resulting in severe peeling and producing heavy release paper, which is quite risky when used.
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Room temperature peeling force, using the peeling force data obtained by Tesa7475 at room temperature through standard testing methods, the unit is N/25mm, which can be converted into grams.
1. The general peeling force is 0.15N/25mm, which is about 15 grams, commonly known as light peeling;
2. 0.250N/25mm, that is, 20-30 grams of peeling force, commonly known as medium peeling;
3. 0.4~0.6N/25mm, that is, the peeling force is 40-60 grams, commonly known as heavy peeling;
4. Of course, there is also a peeling force of 0.03~0.05N/25mm, which is 3~5 grams, commonly known as ultra-light peeling;
5. There is also a peeling force of 1.00N/25mm, which is more than 100 grams, commonly known as overweight peeling.
The residual tack rate refers to the force of the release paper after the first peeling and the second peeling. The calculated data mainly reflects the curing effect of silicone oil.
Testing the technical indicators of release paper is a quite complex project. Generally, electronics factories and tape factories can only test the last few data.
