EPMAR SA1803

Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others

EPMAR SA1803

Main features

  • Low-Viscosity Potting Resin
  • Matched Two-Part Encapsulation
  • Electronic Module Potting

Product Description

EPMAR SA1803 Resin Component is the black Part A resin supplied for the EPMAR SS1803 two-component electronic-grade epoxy potting compound. It is combined with SB1803 Hardener to create a low-viscosity system for encapsulating electronic modules. The component is not a complete potting material on its own; cure, mixed-material handling, and final electrical and mechanical properties belong to the matched SS1803 resin-and-hardener system. SA1803 is therefore selected as the resin side of a controlled two-part encapsulation process rather than as a standalone cured product.

Key features

  • Part A Potting Resin: SA1803 is the resin component of the matched EPMAR SS1803 system.
  • Low-Viscosity Black System: The resin and SB1803 hardener form a low-viscosity black epoxy potting compound.
  • Electronic Module Encapsulation: The complete SS1803 system is used to encapsulate electronic modules.

Applications / Suitable for

  • Resin component for EPMAR SS1803 electronic-module potting
Product Family

EPMAR SA1803

Catalog Product

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Pot LifePot Life
30-40 minutes
Physical Properties
Viscosity (Part B)Viscosity (Part B)
225 mPa.s
Mechanical Properties
ElongationElongation
4.4 %
Electrical Properties
Arc ResistanceArc Resistance
103 s
Dielectric StrengthDielectric Strength
21.34 kV/mm
Volume ResistivityVolume Resistivity
3.1 Ohms⋅cm

Additional Information

Technical properties

As-supplied / before-processing properties

Representative uncured properties of the resin, hardener, and mixed epoxy system.

Property Value Unit Method / condition
Specific Gravity 1.12 - Mixed system
Viscosity 1,900 cps Mixed system at 25°C
Mix Ratio 100:42 parts by weight Resin : Hardener
Pot Life 30-40 minutes 25°C
Cure Schedule 3 hr @ 60°C or 24 hr RT - Recommended cure conditions
Technical properties

After-processing / final-state properties

Representative cured properties of the SS1803 epoxy system.

Property Value Unit Method / condition
Hardness 85 Shore D Cured epoxy
Heat Deflection Temperature 72 °C Reported value
Tensile Strength 8,500 psi Cured epoxy
Flexural Strength 16,200 psi Cured epoxy
Dielectric Strength 542 V/mil 25°C

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