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Resinlab® EP1285HD-9 Highly Filled, Medium Viscosity Casting Resin

Category Polymer , Thermoset , Epoxy , Epoxy Cure Resin , Epoxy, Cast, Metal Filled
Manufacturer Resinlab®
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Resinlab® EP1285HD-9 Highly Filled, Medium Viscosity Casting Resin.pdf
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Material Notes:
Resinlab™ EP1285 (Formerly Lab Product W021901 series) is a highly filled, medium viscosity black casting resin designed for applications requiring a high degree of thermal conductivity and a low CTE combined with a moderate free flowing viscosity. They give excellent resistance to acids, bases, water, and most organic compounds. The high filler content also enhances resistance to thermal cycle stresses. The choice of hardener allows the user to choose a variety of reactivity’s, viscosities, thermal ranges and environmental resistance capabilities. The resin contains a high loading of abrasive aluminum oxide filler, which can introduce wear considerations for wetted components of meter-mix and dispensing equipment. Warming the assembly prior to filling will aid in flow and air release. Additional vacuum degassing may be desired for some applications.Information Provided by Resinlab L.L.C., an Ellsworth Adhesives Company.
Physical Properties Metric English Comments
Specific Gravity 2.22 g/cc
2.22 g/cc
Water Absorption 0.45 %

@Time 86400 sec
0.45 %

@Time 24.0 hour
TM R050-35
Viscosity 40000 cP
40000 cP
Mixed, RVT, #6, 2.5 rpm; TM R050-12
Linear Mold Shrinkage 0.0020 cm/cm
0.0020 in/in
Mechanical Properties Metric English Comments
Hardness, Shore D 95
95
TM R050-19
Tensile Strength at Break 37.9 MPa
5500 psi
TM R050-36
Tensile Strength, Ultimate 37.9 MPa
5500 psi
TM R050-36
Tensile Strength, Yield 20.7 MPa
3000 psi
TM R050-36
Elongation at Break 0.00 - 1.0 %
0.00 - 1.0 %
TM R050-36
Tensile Modulus 8.27 GPa
1200 ksi
TM R050-36
Compressive Yield Strength 82.7 MPa
12000 psi
TM R050-38
Compressive Strength 75.8 MPa
11000 psi
Break; TM R050-38
82.7 MPa
12000 psi
Ultimate; TM R050-38
Compressive Modulus 5.17 GPa
750 ksi
TM R050-38
Adhesive Bond Strength 9.65 MPa
1400 psi
Lap shear; 2024 T3 Al Abraded / MEK Wipe
Thermal Properties Metric English Comments
CTE, linear 35.0 µm/m-°C

@Temperature <=79.0 °C
19.4 µin/in-°F

@Temperature <=174 °F
below Tg
99.0 µm/m-°C

@Temperature >=79.0 °C
55.0 µin/in-°F

@Temperature >=174 °F
above Tg
Thermal Conductivity 1.25 W/m-K
8.68 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 130 °C
266 °F
Minimum Service Temperature, Air -40.0 °C
-40.0 °F
Glass Transition Temp, Tg 79.0 °C
174 °F
TM R050-25
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+15 ohm-cm
>= 1.00e+15 ohm-cm
Dielectric Constant 5.0
5.0
Dielectric Strength 14.4 kV/mm
365 kV/in
Processing Properties Metric English Comments
Cure Time 60.0 - 120 min

@Temperature 65.0 °C
1.00 - 2.00 hour

@Temperature 149 °F
240 - 360 min

@Temperature 45.0 °C
4.00 - 6.00 hour

@Temperature 113 °F
960 - 1440 min

@Temperature 25.0 °C
16.0 - 24.0 hour

@Temperature 77.0 °F
Pot Life 45 - 60 min
45 - 60 min
Mass: 100g; TM R050-17
Descriptive Properties Value Comments
Color Black
Mix Ratio 11.5:1
Volume
27:1
Weight
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