In the release industry, release force is the most frequently discussed and critical data. However, products with the same release force value can sometimes be different. Currently, the release forces commonly referred to in daily communication are mainly divided into three types: Instant Test Release Force, Room Temperature (RT) Aging Release Force, and High Temperature (HT) Aging Release Force. Today, we will explain the differences between these release forces.
Instant Test Release Force: Generally, take the off-line product, attach 7475 tape to it, press it with a weight for 20 minutes, and then test the data.
Room Temperature (RT) Aging Release Force: Generally, take the off-line product, attach 7475 tape to it, press it with a weight at room temperature for 20 hours, and then test the data.
High Temperature (HT) Aging Release Force: Generally, take the off-line product, attach 7475 tape to it, press it with a weight at 70℃ for 20 hours, and then test the data.
The core testing process for all three types of release force is based on the standard procedure of using 7475 tape and pressing with a weight. The differences mainly lie in the standing time and ambient temperature:
- Instant Test Release Force focuses on "immediacy".
- Room Temperature Aging Release Force focuses on "natural storage stability".
- High Temperature Aging Release Force focuses on "extreme environment reliability".
The three values of the same product may be similar or significantly different. For example, the instant test release force of a certain release film is 50g, which rises to 55g after room temperature aging and may jump to 80g after high temperature aging. This change reveals the performance characteristics of the material in different scenarios.
Understanding the differences between the three not only helps industry professionals communicate requirements more accurately, but also enables "matching the right product to the right need" during product selection. It avoids misjudging material performance based on a single value, and ultimately achieves a perfect match between release materials and application scenarios.
