HysolEM LMC-565U-G | EMC for Rotor magnet fixing

Harmonization Code : 3907.30.00.40 |   Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
  • Low CTE (18 ppm/°C)
  • High Tg (174°C)
  • 70% Spherical filler

Product Description

HysolEM LMC-565U-G is the perfect solution for protecting and securing your electric motor's magnets. This black, rotor magnet encapsulant is being used in the automotive, eMobility industry as an alternative to traditional resin fixing techniques. It claims a very low CTE, High Tg, and good and reliable encapsulation. It has 70% filler content and is based on OCN/MAR chemistry with a PN hardener.

HysolEM LMC-565U-G  is specifically designed to keep your motor running smoothly and efficiently. It offers superior protection against environmental factors such as moisture, dust, and other contaminants that can degrade the performance of your magnets over time. an encapsulant for use in automotive rotor magnets. This product is used to protect and secure the magnets within the rotor of electric and hybrid vehicles, improve thermal conductivity and enhance the magnetic properties of the magnets.

HysolEM LMC-565U-G also improves thermal management by dissipating heat generated by the magnets, thereby prolonging the life of the motor. It provides enhanced mechanical stability, holding the magnets securely in place to prevent movement or shifting which can cause damage and reduce efficiency.

Safety is a top priority for us, and HysolEM 300T-KL prevents the release of harmful particles or gases in case of magnet failure, ensuring the safety of both the environment and human health. You'll enjoy cost-effective maintenance and extended motor life, reducing replacement costs in the long run. Upgrade to HysolEM LMC-565U-G and experience the difference it makes in the performance of your electric motor.

Product Family
20 mm
15 gr
15 kg

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
Filler Content 70 %
Specific Gravity
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
Shelf Life
Shelf Life
Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties.

It differs vastly per product and it is based on temperature and storage conditions.

The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ 5°C 300 days
Physical Properties
Spiral Flow @ 175°C 140 cm
Chemical Properties
Ionic Content
Chloride (Cl-)
Chloride (Cl-)
The amount of Chloride (Cl-) ion extracted from the product in parts per million (ppm)
10 ppm
Moisture absorption 0.5 %
Mechanical Properties
Flexural Modulus
Flexural Modulus @ 25°C 1360 N/mm2
Hardness is a dimensionless quantity. There is no direct relationship between measurements in one scale and their equivalent in another scale or another hardness test.
Hot Hardness, Shore D @ 175°C 82
Thermal Properties
Coefficient of Thermal Expansion (CTE)
Coefficient of Thermal Expansion (CTE)
CTE (Coefficient of thermal expansion) is a material property that is indicative of the extent to which a material expands with a change in temperature. This can be a change in length, area or volume, depending on the material.

Knowing the CTE of the layers is helpful in analyzing stresses that might occur when a
system consists of an adhesive plus some other solid component.
Coefficient of Thermal Expansion (CTE), α1
Coefficient of Thermal Expansion (CTE), α1
CTE α1 (alpha 1) is the slope of the Coefficient of thermal expansion in a temperature range below the Glass transition temperature (Tg).

It explains how much a material will expand until it reaches Tg.
18 ppm/°C
Coefficient of Thermal Expansion (CTE), α2
Coefficient of Thermal Expansion (CTE), α2
CTE α2 (alpha 2) is the slope of the Coefficient of thermal expansion in a temperature range above the Glass transition temperature (Tg).

It explains the extent to which a material will expand after it passes Tg.
61 ppm/°C
Gel Time
Gel Time
Gel time is the time it takes for a material to reach such a high viscosity (gel like) that it is no longer workable.

It is usually measured for different temperature conditions and even though it does not refer to full cure it is advisable to never move or manipulate the material after it reached its gel time since it can lose its desired end properties.
Gel Time @ 175°C / 347°F 14 s
Glass Transition Temperature (Tg)
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
174 °C
Thermal Conductivity
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance.

Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
0.65 W/m.K
Curing Conditions
Curing Schedule
Curing Schedule
Curing schedule is the time and temperature required for a mixed material to fully cure. While this applies to materials that cure with heat, there are also other materials that can be cured with UV.

Even though some materials can cure on ambient temperatures, others will require elevated temperature conditions to properly cure.

There are various curing schedules depending on the material type and application. For heat curing, the most common ones are Snap cure, Low temperature cure, Step cure and Staged cure.

Recommended cure type, schedule, time and temperature can always be found on the Technical data sheets.
Curing Time @ 175°C / 347°F 120 s
Mold Temperature 175 °C
Transfer Pressure 70 kg/cm2
Transfer Time 10 s

Additional Information

Automotive rotor magnet encapsulants are used to protect the magnets in a vehicle's electric motor. They provide several benefits, including:

  1. Protection from environmental factors: Encapsulants shield the magnets from moisture, dust, and other contaminants that can degrade their performance over time.

  2. Improved thermal management: Encapsulants can help dissipate heat generated by the magnets, which can prolong the life of the motor.

  3. Enhanced mechanical stability: Encapsulants can help hold the magnets in place, preventing them from moving or shifting within the motor, which can cause damage and reduce efficiency.

  4. Enhanced safety: Encapsulants can help prevent the release of harmful particles or gases in case of magnet failure, which could be harmful to the environment and human health.

  5. Cost-effective: Encapsulants are cost-effective solution as they are relatively inexpensive, and can significantly extend the life of the motor, reducing maintenance and replacement costs.