Hysol KL1000-3LX | Black Epoxy Mold Compound

Harmonization Code : 3907.30.00.90 |   Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other
Main features
  • High reliability
  • High moldability
  • Decreased cost-of-use

Product Description

Hysol KL1000-3LX is a black, semiconductor grade epoxy molding compound. It provides the lowest cost of ownership for an epoxy molding compound. It offers superior moldability and high reliability. This material is designed to satisfy JEDEC Level 4 requirements for reflow at 220 °C.

Hysol KL1000-3LX has a history that predates the acquisition of Huawei Electronics by Henkel. In 2005, Henkel formed a joint-venture with HuaweI Electronics in China to create Henkel Huawei Electronics (HHE) in Lianyungang China. HHE made low-end, halogen containing epoxy molding compounds that used Bromine or Antimony as a flame retardant. The KL1000-3LX is an old product that is still made at Hysol Huawei today. It meets UL94 V-0 flammability at a thickness of 3.175 mm. 

Hysol KL1000-3LX is a halogen-containing, legacy product that has been used for decades with great success for bridge rectifiers, axial packages, dual in line (DIP), TO packages, system in package (SiP), and SMX packages.

Product Family
5 mm
0.3 gr

Catalog Product

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Technical Specifications

General Properties
The color
Filler Content 75 %
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 365 days
Physical Properties
Spiral Flow @ 175°C 75 cm
Chemical Properties
Ionic Content
Chloride (Cl-)
Chloride (Cl-)
The amount of Chloride (Cl-) ion extracted from the product in parts per million (ppm)
7 ppm
Sodium (Na+)
Sodium (Na+)
The amount of Sodium (Na+) ion extracted from the product in parts per million (ppm)
4 ppm
Moisture absorption 0.23 %
Mechanical Properties
Flexural Modulus
Flexural Modulus @ 25°C 1,350 N/mm2
Flexural Strength
Flexural Strength @ 25°C
Flexural Strength @ 25°C
Flexural strength, also known as modulus of rupture, or bend strength, or transverse rupture strength is a material property, defined as the stress in a material just before it yields in a flexure test. This is the flexural strength tested at Room Temperature, 25°C
14.5 N/mm2
Electrical Properties
Volume Resistivity
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
1.0x1015 Ohms⋅cm
Thermal Properties
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 23 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.
165 °C
UL 94 Rating
UL 94 Rating
Flammability rating classification.
It determines how fast a material burns or extinguishes once it is ignited.

HB: slow burning on a horizontal specimen; burning rate less than 76 mm/min for thickness less than 3 mm or burning stops before 100 mm
V-2: burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.
5VA: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole
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 (Automold) 50-80 s
Curing Time @ 175°C / 347°F (Conventional Mold) 60-120 s
Mold Temperature 150-195 °C
Preheat Temperature 80-100 °C
Post Mold Cure
Post Mold Cure @ 175°C / 347°F 4-6 hrs
Transfer Pressure 40-100 kg/cm2
Transfer Time 10-18 s

Additional Information


Keep the product in its sealed container within a dry environment. Material that has been taken out of its containers can become contaminated while in use. Please refrain from putting the product back into the original container.

Powder or preforms must be stored in sealed containers at temperatures of 5 ºC or lower. When taking the material out of cold storage, it is crucial to allow it to reach room temperature inside the sealed container to prevent moisture contamination. For a standard 15 kg carton box, a recommended waiting time is 24 hours.