Products & Solutions

Heat resistant adhesives Dynaleo™ VA9300 Series

Product Summary

Dynaleo VA9300 series is a thermosetting (2-component) adhesives that has both heat resistance and ATF resistance due to our unique polymer design. Other features include high adhesion to PPS base materials, flexibility, and rigidity.

  • As a highly heat-resistant laminating adhesives, it is possible to bond base materials together. Suitable for use in fuel cells and semiconductor peripheral components that require heat resistance.
  • It can also be used as a heat-seal adhesive layer by storing it refrigerated before aging, making it suitable for offline sealing and bonding.
Laminating adhesives heat seal adhesives
Example of use

fuel cells, storage batteries,
Solar cells, semiconductor components

燃料電池、蓄電池、太陽電池、半導体部材のイメージ

Micro LED encapsulant

マイクロLED封止剤のイメージ

Characteristics 

Features ① High heat resistance (200℃)

It has high heat resistance and stable quality. While other companies' epoxy adhesives break, the VA9300 series maintains its coating even after one week at 200°C.

[Dynamic viscoelastic behavior after 1 week at 200℃]
200℃1週間経時後の動性粘弾性挙動のグラフ

Features ② Expansion rate of 1% after ATF impregnation, Features ③ High adhesive strength to PPS base material

Even if it is impregnated with ATF (automatic transmission fluid) at 100℃ for 8 days, there is little change, and product D has an expansion rate of 1%. It is also suitable for adhesion between dissimilar materials such as PPS, PEN, and metals (SUS, copper, aluminum).

Product A Product B Product C Product D
After ATF impregnation
Expansion rate (%)
Breaking strength (MPa) 5% 20% 4% 1%
Breaking elongation (%) 9% 16% 4% 1%
vs. PPS
Adhesive properties
T-peel strength
(N/cm)
Immediately material destruction material destruction material destruction material destruction
100
After 8 days
material destruction material destruction material destruction material destruction

Feature ③ Improved flexibility and rigidity

Our unique resin design achieves both elongation and strength, which are trade-offs characteristics. It achieves physical properties beyond the technological upper limit curve.
We also have a lineup of products with greater rigidity than epoxy resin.

[Broken strength and elongation of paint film]

Product A Product B Product C Product D
Breaking strength (Mpa) 43.8 42.6 54.3 73.9
Breaking elongation (%) 400 250 10 10
塗膜の破断強度と破断伸度のグラフ

Product property list

Product A Product B Product C Product D
Characteristics  Toughness/flexibility Rigidization
Appearance of coating liquid Colorless and transparent
Film thickness () 20
Breaking strength (MPa) 43.8 42.6 54.3 73.9
Breaking elongation (%) 400 250 10 10
After AFT impregnation
Expansion rate (%)
Breaking strength (MPa) 5% 20% 4% 1%
Breaking elongation (%) 9% 16% 4% 1%
vs. PPS
Adhesive properties
T-peel strength
(N/cm)
Immediately material destruction material destruction material destruction material destruction
100
After 8 days
material destruction material destruction material destruction material destruction

*Various data are test values and are not guaranteed.

Customization is also possible according to your needs.

Inquiries

TOYOCHEM CO., LTD. Packaging and Industrial Materials Sales Division Sales Department 1

TOYOCHEM CO., LTD.