EM-Tec conductive silver filled epoxy
EM-Tec conductive silver filled epoxy
Introduction
The EM-Tec conductive silver epoxies enable embedding and cementing samples and parts providing high conductivity and good mechanical strength. When the epoxy is cured, the sample can undergo further preparation steps such as polishing, lapping, thinning, etc. The epoxies are not suitable for soldering, but they create highly conductive contacts. The EM-Tec silver filled epoxies are a two component system supplied in two syringes. To improve conductivity and to make mixing easy, both components are silver loaded. The amounts of the EM-Tec silver epoxy sets are chosen for affordability, yet sufficient for experiments, sample preparation and prototyping. The EM-Tec range of high-end silver filled conductive epoxies include:
- EM-Tec AG29D fast setting, extreme conductivity silver epoxy, 19g supplied in 2 syringes
- EM-Tec AG30 long pot life, extreme conductivity silver epoxy, 21g supplied in 2 syringes
- EM-Tec AG31 fast setting, conductivity silver epoxy, 14g supplied in 2 syringes
- EM-Tec AG32 long pot life, high conductivity silver epoxy, 15g supplied in 2 syringes
EM-Tec AG29D fast setting, extreme conductivity silver filled epoxy
EM-Tec AG29D the fast setting conductive silver filled epoxy combines excellent conductivity, good thermal conductivity, good mechanical strength and a relatively low curing temperature. Gives a 20 minutes working window and cures in 20 minutes at the relatively low curing temperature of 65°C. At room temperature (20°C) the curing time is 5 hours. Excellent choice for high end applications where excellent conductivity is needed. The low curing temperature of 65°C provides compatibility with temperature sensitive materials or devices. Easy mixing ratio of 1:1 by volume.
EM-Tec AG30 long pot life, extreme conductivity silver filled epoxy
EM-Tec AG30 conductive silver filled epoxy combines excellent conductivity, good thermal conductivity, good mechanical strength, long pot life and relatively low curing temperature. Excellent choice for high end applications where excellent conductivity is needed. The low curing temperature of 65°C provides compatibility with temperature sensitive materials or devices. Easy mixing ratio of 1:1 by volume.
EM-Tec AG31 fast setting, conductive silver filled epoxy
EM-Tec AG31 is a fast setting silver filled epoxy and ideal when time is the limiting factor. Gives a 20 minutes working window and cures in 15 minutes at the relatively low curing temperature of 65°C. Conductive and mechanical properties will be sufficient for most for non-critical applications. The EM-Tec AG31 represents the most economical silver filled epoxy. It should not be used for applications where shrinkage is a limiting factor. Easy mixing ratio of 1:1 by volume.
EM-Tec AG32 long pot life, high conductivity silver filled epoxy
EM-Tec AG32 conductive silver filled epoxy is an all-round long pot life type epoxy for applications where extreme conductivity and/or highest thermal conductivity are not needed. This is the strongest of the four conductive epoxies and should be used where mechanical strength is needed. Best conductive epoxy for cross sectioning. Easy mixing ratio of 1:1 by volume.
Specifications of the EM-Tec silver filled conductive epoxies
Epoxy type |
EM-Tec AG29D |
EM-Tec AG30 |
EM-Tec AG31 |
EM-Tec AG32 |
Product # |
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Pot life |
20 minutes |
4 hrs |
20 minutes |
4 hrs |
Resistivity |
0.00053 ohn.cm |
0.0007 ohm.cm |
0.007 ohm.cm |
0.006 ohm.cm |
Thermal conductivity @ 25°C |
2 W/(m.K) |
2.4 W/(m.K) |
1.4 W/(m.K) |
1.3 W/(m.K) |
Hardness Shore |
84D |
73D |
73D |
60D |
Mixed density |
3.22 g/cm3 |
3.06 g/cm3 |
2.29 g/cm3 |
2.42 g/cm3 |
Viscosity @ 25°C Part A |
698 Pa.s |
3000 Pa.s |
1000 Pa.s |
950 Pa.s |
Silver content |
~ 76% |
~ 75% |
~ 67% |
~ 65% |
Outgassing (curing) |
0.15% |
0.03% |
0.16% |
0.04% |
Vacuum compatibility |
Medium |
Good |
Medium |
Good |
Compression strength |
75 N/mm2 |
36 N/mm2 |
39 N/mm2 |
65 N/mm2 |
Tensile strength |
8.3 N/mm2 |
9.0 N/mm2 |
13 N/mm2 |
14 N/mm2 |
Cure time @ 22°C |
5 hrs |
96 hrs |
5 hours |
96 hours |
Minimum temperature |
-50°C |
-40°C |
-55°C |
-40°C |
Maximum temperature |
+150°C |
+150°C |
+150°C |
+150°C |
Weight (in 2 syringes) |
19.4g |
18.7g |
14.4g |
14.7g |
Mixing ratio |
1:1 by volume |
1:1 by volume |
1:1 by volume |
1:1 by volume |
Shelf life @ 20°C |
> 3 years |
> 2 years |
> 2 years |
> 2 years |
Ordering information for EM-Tec conductive silver filled epoxy
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