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834ATH-375ML

P1-P3P4-P6P7-P7
Page 1 of 7
Date: 21 October 2013 / Ver. 1.01
834ATH
Flame Retardant
Encapsulating & Potting Compound
834ATH Technical Data Sheet
ENVIRONMENT
RoHS
REACH compliant
Description
The 834ATH Flame Retardant Epoxy Encapsulating and Potting Compound is a two-part, economical,
electronic-grade, self-extinguishing, flame retardant epoxy that provides excellent physical, chemical, and
electrical protection and offers a degree of thermal conductivity.
It protects against static discharges, shocks, vibrations, and mechanical impacts. It is extremely resistant
to environmental humidity, salt water, and harsh chemicals. It also helps hide and restrict access to
intellectual property, and it much harder to remove than standard epoxy encapsulating compounds.
Applications & Usages
The 834ATH epoxy is used to pot or encapsulate printed circuit assemblies in a protective block. The cured
epoxy improves reliability, operational range, and lengthens the life of electrical and electronic parts.
Benefits and Features
Certified UL 94V-0 (File # E334302)
Specification Verified as per UL 746A
Excellent Comparative Tracking Index (400–599 V, PLC = 1)
Cost effective
Increased thermal conductivity
Mix ratio 2A:1B compatible with most dispensing equipment
Resistance to water and humidity allowing submersion if needed
Protects electronics from moisture, corrosion, fungus, thermal shock, and static discharges
Free of solvents
Curing & Work Schedule
Properties
Value
Working Life
a)
2 h
Shelf Life
5 y
Full Cure @20 °C [68 °F]
24 h
Full Cure @80 °C [176 °F]
60 min
Full Cure @100 °C [212 °F]
45 min
Storage Temperature
16 to 27 °C
of Unmixed Parts
[61 to 81 °F]
a) Working life and full cure assumes room
temperature and 100g. A 10 °C increase can
decreases the pot life by half.
Service Ranges
Properties
Value
Service Temperature
-30 to +175 °C
[-22 to +347 °F]
Max Intermittent Temp.
a)
-40 to +200 °C
[-40 to 392 °F]
b) Maximum short-term exposure temperature
toleration limit—not recommended as a sustained
or repeated operation condition
Page 2 of 7
Date: 21 October 2013 / Ver. 1.01
834ATH
Flame Retardant
Encapsulating & Potting Compound
834ATH Technical Data Sheet
Principal Components
Name CAS Number
Part A: Epoxide Resin 25068-38-6 + 68609-97-2
Part B: Curing Amide 68410-23-1 + 112-24-3
Aluminum Trihydrate 21645-51-2
1,1-(ethane-1,2-diyl)bis(pentabromobenzene) 84852-53-9
Antimony Trioxide 1309-64-4
Properties of Cured 834ATH
Physical Properties
Value
a
Color
Black
Density @25 °C [77 °C]
~1.4 g/cm
3
Hardness
85D
Tensile Elongation
6.2%
Tensile Strength
28 N/mm
2
[4,100 lb/in
2
]
Compression Strength
99.8 N/mm
2
[14,500 lb/in
2
]
Tensile Impact
8.4 kJ/m
2
[4.0 ft·lb/in
2
]
Izod Impact
20 J/m
Lap Shear Strength (Al alloy 5052)
14.9 N/mm
2
[2,160 lb/in
2
]
Flexural Strength
51 N/mm2
[7,400 lb/in2]
Water Absorption (WAB)
0.15%
Linear Dimension Change @after 168 h in water
0.0037%
Electric Properties
Value
Breakdown Voltage @1.514 mm
33 kV
Dielectric Strength
22 kV/mm [550 V/mil]
Breakdown Voltage @3.175 mm [1/8”]
47 kV
Dielectric Strength
15 kV/mm [380 V/mil]
Volume Resistivity @23 °C & 50% RH
7 x10
14
Ωcm
Volume Resistivity @35 °C & 90% RH
2 x10
14
Ωcm
Comparative Tracking Index (CTI)
400 V to 599 V
Performance Level Class (PCL) = 1
Hot Wire Ignition (HWI)
120 s
High Voltage Arc Tracking Rate (HVTR)
121 mm/min
High Voltage Arc Resistance to Ignition (HVAR)
300 s
High Voltage, Low Current, Dry Arc Resistance
127 s
High-Current Arc Ignition (HAI)
+150 arc
Note: Specifications are for epoxy samples cured at 65 °C for 1 hour, with additional curing time at room
temperature for optimal results. For most tests, samples were conditioned at 23 °C and 50% RH.
a) N/mm
2
= mPa; lb/in
2
= psi;
b) To allow comparison between products, the Tautscher equation was fitted to five experimental dielectric
strengths and interpolated for a standard reference thickness of 1/8” (3.175 mm).
Page 3 of 7
Date: 21 October 2013 / Ver. 1.01
834ATH
Flame Retardant
Encapsulating & Potting Compound
834ATH Technical Data Sheet
Properties of Cured 834ATH (Continued)
Thermal Properties
Method
Value
Glass Transition Temperature
ASTM D 3481
51 °C [124 °F]
Coefficient of Thermal Expansion
Below Tg
ASTM E 831
84 ppm/°C
Above Tg
"
178 ppm/°C
Thermal Conductivity @25 °C [77 °C]
ASTM E 1461 92
0.37 W/mK
Thermal Diffusivity @25 °C [77 °C]
"
2.1 x 10
-7
m
2
/s
Specific Heat Capacity @25 °C [77 °C]
ASTM E 1269 01
1.2 J/(kgK)
Heat Deflection Temperature
ASTM D 648
53.7 °C [129 °F]
d) Coefficient of Thermal Expansion (CTE) units are in ppm/°C = in/in/°C × 10
-6
= unit/unit/°C × 10
-6
Properties of Uncured 834ATH
Physical Property
Mixture (2A:1B)
Color
Black
Viscosity @20 °C [73 °F]
5,900 cP [5.9 Pa·s]
a)
Density
1.39 g/mL
Mix Ratio by weight (A:B)
2.25:1.00
Mix Ratio by volume (A:B)
2:1
Physical Property
Part A
Part B
Color
Black
Black
Viscosity @24°C [73 °F]
4,600 cP [4.6 Pa·s]
12,900 cP [12.9 Pa·s]
Density
1.40 g/mL
1.26 g/mL
Flash Point
150 °C [302 °F]
185 °C [365 °F]
% solids
~98%
100%
Odor
Mild aromatic
Ammonia like
a) Brookfield viscometer at 50 RPM with spindle LV4
P1-P3P4-P6P7-P7

834ATH-375ML

Mfr. #:
Buy 834ATH-375ML
Manufacturer:
MG Chemicals
Description:
CHEMICAL, POTTING COMPOUND, 375ML
Lifecycle:
New from this manufacturer.
Delivery:
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