HYSOL® ES4512™ provides the following product characteristics:

Technology Epoxy
Appearance (Part A) Black
Appearance (Part B) Tan
Appearance (cured) Black
Components Two component – requires mixing
Mix  Ratio,  by  volume – Part A: Part B 100 : 106
Mix   Ratio,   by weight – Part A: Part B 100 : 100
Cure Room temperature cure
Application Potting and Encapsulating

HYSOL® ES4512™ is a two-component casting system with excellent handling properties. This low cost, flexible system is filled with a non-abrasive filler for machine metering/dispensing or regular hand mixer applications.

UL Classification

Classified by Underwriters Laboratories Inc.®  UL-94 “Test for Flammability of Plastic Materials” and meets the requirements of 94VO in a 1.8 mm cross section.

Part A Properties

Density @ 25 °C, g/cm³ 1.57
Filler Content, % 50
Solids Content, % 100
Viscosity, Brookfield – RVF, 25 °C, mPa·s (cP):
Spindle 6, speed 2 rpm 55,000
Spindle 6, speed 20 rpm 28,000

 Part B Properties

Density @ 25 °C, g/cm³ 1.48
Filler Content, % 60
Solids Content, % 100
Viscosity, Brookfield – RVF, 25 °C, mPa·s (cP):
Spindle 5, speed 20 rpm 6300

Mixed Properties

Density @ 25 °C, g/cm³ 1.55
Peak Exotherm Temperature, °C:
200 g mass 90
Pot Life @ 25 °C, minutes:
200 g mass 60
Gel Time @ 25 °C, hours 5
Viscosity @ 25 °C, mPa∙s (cP) 19000

TYPICAL CURING PERFORMANCE Recommended Curing Conditions

36 to 48 hours @ 25 °C (Recommended cure)

3 hours @ 60 °C (Alternate cure)

Physical Properties:
Glass Transition Temperature, ASTM D 3418, °C 50
Coefficient of Thermal Expansion , ASTM D 3148, K-1:
Pre Tg (alpha 1) 66×10-6
Post Tg (alpha 2) 150×10-6
Coefficient of Thermal Conductivity, ISO 8302, W/(m·K) 0.644
Linear Shrinkage, ASTM D792, % 0.1
Shore Hardness, ISO 868, Durometer D 88
Water Absorption, ISO 62, %:
24 hours in water @ 25 °C 0.32
Elongation , ASTM D 638,% 6.3
Tensile Strength Tests – Hysol:
Tensile Strength, ASTM D 638 N/mm² 18.4
(psi) (2,670)
Compressive Strength, ISO 604 N/mm² 80.7
(psi) (11,700)
Flexural Strength, ASTM D790 N/mm² 34.3
(psi) (4,975)
Tear Strength, ISO 34-2, Die D N/mm 42.0
(lb./in.) (240)
Electrical Properties:
Dielectric Breakdown Strength IEC 60243-1, kV/mm 44.7
Volume Resistivity, IEC 60093, Ω·cm:
@ 25 °C 5.9×1014
@ 105 °C 2.8×1010
Surface Resistivity, IEC 60093, Ω:
@ 25 °C 3.0×1015
@ 105 °C 1.8×1015
Dielectric Constant / Dissipation Factor, IEC 60250:
@ 25 °C:
100-Hz 4.6 / 0.038
1-kHz 4.4 / 0.03
10-kHz 4.3 / 0.026
100-kHz 4.1 / 0.023
@ 105 °C:
100-Hz 35.7 / 1.43
1-kHz 9.2 / 0.5
10-kHz 7.8 / 0.1
100-kHz 7.2 / 0.08
For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS).
Not for product specifications
The technical data contained herein are intended as reference only. Please contact your local quality department for assistance and recommendations on specifications for this product.

Store product in the unopened container in a dry location.
Storage information may be indicated on the product container labeling.
Liquid Storage – Liquids should be stored at 23°C or below, in closed containers. If stored below 23°C, the material MUST be allowed to come to room temperature, in the sealed container, to avoid moisture contamination.
Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated. If additional information is required, please contact your local Technical Service Center or Customer  ervice Representative.
(°C x 1.8) + 32 = °F
kV/mm x 25.4 = V/mil
mm / 25.4 = inches
N x 0.225 = lb
N/mm x 5.71 = lb/in
N/mm² x 145 = psi
MPa x 145 = psi
N·m x 8.851 = lb·in
N·m x 0.738 = lb·ft
N·mm x 0.142 = oz·in
mPa·s = cP
The data contained herein are furnished for information only and are believed to be reliable. We cannot assume responsibility for the results obtained by others over whose methods we have no control. It is the user’s responsibility to determine suitability for the user’s purpose of any production methods mentioned herein and to adopt such precautions as may be advisable for the protection of property and of persons against any hazards that may be involved in the handling and use thereof. In light of the foregoing, Henkel Corporation specifically disclaims all warranties expressed or implied, including warranties of merchantability or fitness for a particular purpose, arising from sale or use of Henkel Corporation’s products. Henkel Corporation specifically disclaims any liability for consequential or incidental damages of any kind, including lost profits. The discussion herein of various processes or compositions is not to be interpreted as representation that they are free from domination of patents owned by others or as a license under any Henkel Corporation patents that may cover such processes or compositions. We recommend that each prospective user test his proposed application before repetitive use, using this data as a guide. This product may be covered
by one or more United States or foreign patents or patent applications.



  H-ES4512-EN TDS (67.2 KB, 3 次)

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