PLENSETTM

PLENSETTM
Narrow gap curing type
PLENSETTM

PLENSETTM
 Narrow gap curing type

What is the PLENSETTM narrow gap curing type?

PLENSETTM Impregnation Adhesive Type is a one-component epoxy resin adhesive that applies an innovative curing system in a fully liquid form.
It ensures uniform curing even in narrow gaps or with small amounts of application, preventing curing defects due to component separation and enabling stable adhesion.
By heating within a temperature range of 80°C to 120°C, it fully cures in approximately 30 to 60 minutes. This temperature condition and curing speed are highly flexible in the manufacturing process, accommodating various production takt times.
The outgassing from the cured material is extremely low, making it ideal for assembling precision machinery that requires high low-outgassing properties. It is particularly effective in applications where minimizing the impact of outgassing is crucial, such as HDD components.
PLENSETTM Impregnation Adhesive Type has an excellent pot life (usable time) at room temperature, maintaining stable dispensing processes even during long work periods or mass production. This characteristic ensures uniform quality in assembly work that requires high precision, contributing to improved product reliability.

Have you experienced these issues?

Adhesion and encapsulation by pouring into gaps after parts assembly
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Uncured separation occurs when pouring into narrow spaces.
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To perform impregnation bonding and encapsulation at low heating temperatures
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Here is the product that resolves these issues. PLENSETTM Narrow gap curing type

It enables adhesion and encapsulation without uncured separation even when applied in minute amounts to narrow areas and gaps of 10 µm or less.
Feature
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Applying our proprietary no particle curing system provides low-temperature curing properties.
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We have a lineup of low-viscosity products that are easy to pour.
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Application

HDD spindle motor assembly
Motor magnet adhesion

Narrow gap curing type application example
HDD spindle motor adhesion
Permanent magnet Coil Iron core Yoke
Item AE-403H AE-740 AE-770SF Conditions
Characteristics Color tone and appearance Black viscous liquid Black viscous liquid Red viscous liquid Visual inspection
Viscosity 7Pa・s 13Pa・s 7Pa・s E-type viscometer, 25degC、50rpm
Thixotropic index 1.1 1.3 1.1 E-type viscometer, 25degC、5rpm/50rpm
Gel time 65seconds/80degC 22seconds/80degC 12seconds/90degC Hot plate
Standard curing conditions 80degC×30minutes 80degC×60minutes 90degC×60minutes Hot air circulation oven
Properties of cured materials Tensile lap shear strength 14N/㎟ 18N/㎟ 18N/㎟ JIS K-6850 (Steel plate)
Glass transition temperature 35degC 51degC 100degC TMA measurement
Thermal expansion coefficient α1 71ppm 94ppm 70ppm
α2 192ppm 179ppm 159ppm
The data in this document are representative values, not standard values. The contents of this document are subject to change without notice.

Application process

STEP1
Telephone or form inquiry
STEP2
Inquire about customer issues, required characteristics
STEP3
Propose and send samples for evaluation
STEP4
Customer evaluation
STEP5
Interview regarding results of evaluation
STEP6
When it is difficult to use existing products
STEP7
Consultation and consideration of development themes

Contact us / Request materials