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“PLENSET” High-reliability type

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Rapid Curing

They can not only be cured in a conventional oven but also by a flash heating method such as high-frequency induction heating, or IR curing. For instance, AE-300 as high temperature-resistant “PLENSET” is used to bond steel sheets is cured completely by heating with a high-frequency induction heater at 180degC within 60 seconds. It exhibits high adhesiveness and great durability after curing as quickly as any one-component epoxy resin adhesive.

High bonding strength and toughness

The adhesives of this type have high bonding strength against both tensile shear and peeling over a wide range of temperatures, and are most suitable for structural bonding and bonding between different kinds of materials. In particular, AE-450 as flexible “PLENSET” has flexibility and can be used for bonding in places where stresses are generated, such as neodymium magnets.

Long-Term Reliability

In a heat cycle test, a moisture resistance test and a high-temperature aging test, they exhibited durability on the level required of miniature motor magnets mounted in automobiles. In particular,AE-300 as high temperature-resistant “PLENSET” has high reliability, and exhibits superior adhesion retention under severe conditions.


  • Metal (steel, aluminum and other alloys) bonding
  • Motor magnet attachment
  • Coil fixation and protection against wire breakage
  • Neodymium magnet bonding
ITEM AE-300 AE-450 Conditions
before curing
Appearance Black
viscous liquid
viscous liquid
Visual observation
Viscosity 220Pa・s 270Pa・s E-type viscometer,
25degC, 5rpm
Thixotropic index 1.4 1.4 E-type viscometer,
Specific gravity 1.4 1.1 25degC
Gel time 24sec.
at 120degC
at 150degC
Hot plate
Recommended cure schedule 8min.
at 120degC
at 150degC
Convection oven heating
after curing
Lap shear strength 27N/mm2 25N/mm2 JIS K-6850(steel plate)
T-peel strength 78N/25 mm 108N/25 mm JIS K-6854-3(steel plate)
Glass transition temperature 112degC 50degC DMS
Flexural modulus 3.1GPa 0.35GPa DMS, at 25degC
Elongation at break 2% 60% JIS K-7161
Water absorption 0.75% 0.73% After 24h soaking at
Hardness 85 67 Shore D hardness tester

Reliability Test

AE-450 (Substrate: mild steel plate)
Test item Lap shear strength
Initial at 25degC 25N/mm2
Thermal aging test:
after 1000h at 120degC
Moisture resistance test:
1000h at 85degC, 95% RH
Test item T-peel strength
Initial at 25degC 108N/25mm
at -40degC 122N/25mm
Thermal aging test:
after 1000 h at 120degC
at 25degC 118N/25mm
at -40degC116N/25mm
AE-300 (Substrate: mild steel plate)
Test item Lap shear strength
Initial at 25degC 25N/mm2
at 120degC 14N/mm2
Thermal aging test
after 1000h
at 150degC 30N/mm2
at 180degC 20N/mm2
Moisture resistance test:
after 1000h at 85degC, 95% RH
Heat shock test : 1000 cycles of
exposure to -40degC and 120degC

Technical data presented in this document are typical experimental values and do not signify any of the products’ specifications. The data may be revised without prior notice.

The inquiry about this product
The Ajinomoto fine-techno are a company which bears the core of the fine-chemicals enterprise of Ajinomoto groups including insulating material "Ajinomoto Build-up Film"(ABF).
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