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RoHS Compliant

Flame Retardant Epoxy
Encapsulating and Potting Compound

833FRB



A two component self extinguishing epoxy compound. Provides insulation and protects sensitive components and circuits from: static discharge, impact, heat, shock, conductivity, abuse, vibration, moisture, fresh and salt water, chemicals and analysis.

  • UL Recognized, Flame Class 94V-0, category QMFZ2  (File # E334302)
  • Specifications verified as per UL746A
  • Hard durable surface
  • Extreme resistance to water and humidity
  • Strong chemically resistance
  • Physically strong and impact resistant
  • Vibration Resistant
  • Provides strong electrical insulation
  • VOC Free
  • Solvent Free

Specifications

Standards

UL Registered

Flame Class 94V-0, category QMFZ2 file # E334302
Uncured Properties - Resin [Part A]
Viscosity @ 24°C Brookfield 30 RPM Spindle 4 4000 cps
Phase   Liquid
Color   Black
Specific Gravity   1.24
Odor   Mild
Flash Point   190 °C
Uncured Properties - Hardener [Part B]
Viscosity @ 24°C Brookfield 30 RPM Spindle 4 14000 cps
Phase   Liquid
Color   Grey
Specific Gravity   1.13
Odor   Musty
Flash Point   105 °C
Uncured Properties – Mixed
Viscosity @ 20°C Brookfield 50 RPM Spindle 4 11500 cps
Specific Gravity   1.21
Color   Black
Mixing Ratio (Part A & B)
Volume Mixing Ratio  

2 (resin): 1 (hardener)

Mass Mixing Ratio   2 (resin): 1 (hardener)
Working Time   1 hour
Curing Time (100 g)    
@ room temperature   24 hours
@ 65°C / 149 °F   60 minutes
@ 80°C / 176 °F   45 minutes
@ 100°C / 212 °F   35 minutes

Cured Properties - Physical

Tensile Impact
@ 0.117 “ thickness

ASTM D1822 
UL  746A

20.54 kJ/m2
Izod Impact

ASTM D256 Method A
or ISO 180

1.10 kJ/m2
Flexual Strength ASTM D790
or  ISO 178
40.2 Mpa

Compressive Strength

ASTM D695

1310 kg/cm2

Lap shear Strength ASTM 790
or  ISO 178
59.3 kg/cm2
Hardness (shore D)   83-84

Cured Properties - Electrical

Surface Resistivity
@ 23°C/35%RH

ASTM D257

2 x 1015 Ohms/square

Volume Resistivity
@ 23°C/50%RH

ASTM D257
UL  746A

2.71 x 1015 Ohms- cm

Dielectric Strength
(tested @1.730mm)

ASTM D149
UL 746A

19.37 kV/mm

Dielectric Constant / Dissipation Factor
(tested @ 161")

ASTM D150-98

 

@ 60 Hz  

3.45 / 0.018

@ 1 KHz

 

3.40 / 0.012

@ 10 KHz

 

3.31 / 0.013

@ 100 KHz

 

3.25 / 0.014

@ 1 MHz

 

3.18 / 0.014

Comparative Tracking Index @ 3 mm thickness

ASTM D3638
UL 746A

322 V

High Voltage Arc Tracking

ASTM D 3874
UL 746A

52.83 Seconds

High Voltage Arc Resistance to Ignition

UL 746A

48.1 mm/min

High Current Arc Ignition

UL 746A

94.80 Arcs

High Voltage, low current, Dry Arc Resistance

ASTM D495
UL 746A
37.6  Seconds

High voltage Arc resistance to Ignition

UL 746A

4.67  Seconds

Flame Class

UL 746A 94 V-0

Cured Properties - Thermal

Tg  (Glass Transition Temp.)

ASTM D3418

56 °C

HDT (High Deflection Temp.)

ASTM D648, ISO 75

51.9 °C

Maximum withstand temp.

 

225 °C

Constant Service temp.

 

175 °C

Cured Properties - Additional Properties

Outgassing

ASTM E595

 

Total mass loss (TML)

 

1.45 %

Collected Volatile condensable Material (CVCM)

 

0.03 %

Water Vapour Regain (WVR)

 

0.10 %

Ash content

ISO 3451/1

1.27 %


Available Sizes

Catalog NumberSizes AvailableDescription
833FRB-375ML 375 mL (12 oz) Liquid
833FRB-3L 3 L (0.8 gallon) Liquid
833FRB-60L 60 L (16 gallons) Liquid