Heat curing the potting epoxy 100A/100B
The weight ratio of (Weight Ratio) 100A: 100B = 100:30
A Feature
1 low viscosity, potting, and has excellent impregnation properties.
(2) can be used for a long time, easy to operate.
(3) has excellent toughness, resistance to cracking, curing surface is smooth and bright. .
4 after curing with excellent electrical properties, mechanical properties and dimensional stability and performance.
Uses: Suitable for color TV line output transformer (FBT), car and motorcycle ignition coil, ignition coil, transformers, power supplies, motor start capacitor, home appliances and IC electronic insulation potting.
Appearance and characteristics:
The project 100A, 100B
Viscosity (40 º C cps): 12000-18000 20-25
Specific gravity (25 º C): 1.8 1.2
Color: Black, also can specify yellowish
(D) curing process: 90 º C for 4 hours or (75 º C, 2.5 hours + 110 º C for 2.5 hour), or (80 º C for 4 hours + 120 º C) for 1 hour (also can be based on user needs into adjustment)
V. time: 8 hours at room temperature or 35 ° C for 4 hours.
Cured of sixth .100A/100B the electrical properties (25 º C under test):
Project Test Method Value
Volume resistivity (Ω / cm) ASTM D257 6.5 × 1015
Surface Resistivity (Ω) ASTM D257 5.0 × 1014
Withstanding Voltage (KV / mm) ASTM D149> 32
Dielectric constant (1 kHz) ASTM D150 4.0
Arc resistance (12.5KV/Sec,) - 120
Dielectric loss tangent (tanδ / KHz) - 1 × 10-2
Seven .100A/100B of the cured mechanical properties:
Project Test Method Value
Flexural Strength (kg/mm2) ASTM D695 14.0
Compressive strength (kg / mm2) ASTM D695 14.0
Impact strength (kg / mm2) ASTM D256 15.0
Tensile strength (kg mm2) ASTM D695 9.5
Hardness Shore D 90.0
Heat distortion temperature (º C) TGA 108
Linear expansion coefficient (1 / º C) TMA 3.8 × 10-5
Water absorption (24hr.%) - 0.18
Temperature cycling (-40 º C - +120 º C) (30 min) 15 times without cracking
Flame retardant UL-94 V-0
: Shelf life: 6 months at room temperature Note: The above data for reference only.
