Introduction to heat-resistant pressure sensitive adhesives
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This time, we would like to introduce two types of heat-resistant pressure sensitive adhesives.
- Heat resistance required for pressure sensitive adhesives
- Heat-sensitive sticky type
- Heat resistant minimal peel strength type
Heat resistance required for pressure sensitive adhesives
Functions required in high-temperature environments and our products
- Even stronger adhesion: heat-sensitive adhesive type BPS6545, BPS6458
- Peels off cleanly later: Heat-resistant slightly viscous type BPS6514, BPS6558
Application
・For automotive decorative films, etc.
Heat-sensitive sticky type
This is a heat-sensitive pressure sensitive adhesives that increases in adhesive strength as the temperature rises.
We would like to introduce BPS 6458, which has a strength of over 50N at 120℃, and BPS 6545, which has good heat resistance retention and olefin adhesion.
| BPS 6458 | BPS 6545 | ||
|---|---|---|---|
| Normal adhesive strength vs. SUS［N/25mm］ | 37.2 | 20.3 | |
| Adhesive strength after 30 minutes of heat resistance vs. SUS [N/25mm] | 80℃ | 41.9CF | 26.4 |
| 100℃ | 49.2CF | 30.7 | |
| 120℃ | 53.7PT | 33.1 | |
| Heat resistance holding force after 30 minutes vs. SUS [misalignment mm] | 120℃ | 0.3 | 0.1 |
| Adhesion to olefin [N/25mm] | To PE | 1.5Z | 7.1 |
| To PP | 4.8Z | 14.5Z | |
Heat resistant minimal peel strength type
This is a heat-resistant, slightly viscous pressure sensitive adhesives that does not increase its adhesive strength even in high-temperature environments.
BPS 6558 is the acid-free version of BPS 6514.
| Product name | BPS 6514 | BPS 6558 | ||
|---|---|---|---|---|
| Type | With acid | No acid | ||
| plasticizer | Contains no | Contains no | ||
| Peeling strength [N/25mm] |
against glass | Initial 23℃-20min | 0.33 | 0.08 |
| Heat resistance 150℃-1hr | 0.35 | 0.13 | ||
| Adhesive strength increase rate (%) | 110 | 160 | ||
| VS. PET | Initial 23℃-20min | 0.65 | 0.09 | |
| Heat resistance 150℃-1hr | 0.33 | 0.21 | ||
| Adhesive strength increase rate (%) | 50 | 240 | ||
* Adhesive strength increase rate [%] = Adhesive strength on the adherend after heat resistance test ÷ Adhesive strength on the initial adherend (×100)
Inquiries
TOYOCHEM CO., LTD. Packaging and Industrial Materials Sales Division Sales Department 1
TEL:03-3272-0940