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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   1.34 kg/l
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   1.17 kg/l
Odor   Musty
Flash Point   105 °C
Uncured Properties – Mixed
Viscosity @ 20°C Brookfield 50 RPM Spindle 4 11500 cps
Specific Gravity   1.28 kg/l
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
Flame Class UL 746A 94 V-0
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
Hot Wire Ignition (HWI) ASTM D3874 / TEC 60659-2-20/ UL746A 52.83 Seconds
High- Current Arc Ignition (HAI) UL 746A 94.80 Arcs
High Voltage Arc tracking Rate (HVTR) UL 746A 48.07 mm/min
High Voltage, low current, Dry Arc Resistance ASTM D495
UL 746A
37.62 seconds
Comparative Tracking Index (CTI) ASTM D495
UL 746A
600 -250 V
High voltage Arc resistance to Ignition (HVAR) UL 746A 4.67  Seconds
Cured Properties - Thermal
Tg  (Glass Transition Temp.) ASTM D3418 56 °C
HDT (Heat Deflection Temp.) ASTM D648, ISO 75 51.9 °C
Maximum withstand Temperature   -65 °C to 225 °C
Constant Service Temperature   175 °C
Operating Temperature Range   -40 °C to 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 %
  UL746A  

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