Silver-filled epoxy
EM-Tec conductive silver epoxies enable embedding and cementing specimen and parts providing high conductivity and good mechanical strength. When the epoxy is cured, the specimen can undergo further preparation steps such as polishing, lapping, thinning etc. Epoxies are not suitable for soldering, but they create highly conductive contacts. 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 EM-Tec range of high-end silver filled conductive epoxies include:
- EM-Tec AG29D fast setting, extreme conductivity silver epoxy, 19g supplied in two syringes
- EM-Tec AG30 long pot life, extreme conductivity silver epoxy, 21g supplied in two syringes
- EM-Tec AG31 fast setting, conductivity silver epoxy, 14g supplied in two syringes
- EM-Tec AG32 long pot life, high conductivity silver epoxy, 15g supplied in two syringes
EM-Tec AG29D fast setting, extreme conductivity, silver filled epoxy
EM-Tec AG29D fast-setting conductive silver filled epoxy combines excellent conductivity, good thermal conductivity, good mechanical strength and a relatively low curing temperature. Gives a 20-minute working window and cures in 20 minutes at a relatively low curing temperature of 65°C. At room temperature (20°C) the curing time is five 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 10 minute 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, conductive 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. This is the best conductive epoxy for cross-sectioning. Easy mixing ratio of 1:1 by volume.
EM-Tec silver filled conductive epoxies – specifications
| Epoxy type | EM-Tec AG29D | EM-Tec AG30 | EM-Tec AG31 | EM-Tec AG32 |
| Product code | 15-002429Â | 15-002430 | 15-002431 | 15-002433 |
| Pot life | 20 minutes | 4 hours | 10 minutes | 4 hours |
| Electrical conductivity | 0.0010 ohn.cm | 0.0007 ohm.cm | 0.0174 ohm.cm | 0.006 ohm.cm |
| Thermal conductivity @ 25°C @ 50°C @ 100°C |
1.63 W/(m.K) 1.79 W/(m.K) 1.65 W/(m.K) |
1.748 W/(m.K) 1.750 W/(m.K) 1.684 W/(m.K) |
0.903 W/(m.K) 0.893 W/(m.K) 0.813 W/(m.K) |
0.850 W/(m.K) 0.826 W/(m.K) 0.961 W/(m.K) |
| Hardness Shore | 83D | 73D | 75D | 73D |
| Density | 3.3 g/cm3 | 2.82 g/cm3 | 2.44 g/cm3 | 2.19 g/cm3 |
| Silver content | ~ 76% | ~ 75% | ~ 67% | ~ 65% |
| Outgassing (curing) | 0.15% | 0.03% | 0.16% | 0.04% |
| Vacuum compatibility | Medium | Good | Medium | Good |
| Compression strength | 21 MPa | 35.9 MPa | 13Â Mpa | 64.6 MPa |
| Tensile strength | 6.3 Mpa | 8.9 MPa | 6.28 Mpa | 13.5 MPa |
| Cure time @ 22°C Cure time @ 65°C Cure time @ 100°C |
5 hours 20 minutes 12 minutes |
96 hours 120 minutes 60 minutes |
24 hours 15 minutes 11 minutes |
96 hours 120 minutes 50 minutes |
| Minimum temperature | -55°C | -40°C | -55°C | -40°C |
| Maximum temperature | +150°C | +150°C | +150°C | +150°C |
| Weight (in 2 syringes) | 19g | 21g | 14g | 15g |
| 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:
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Short working time, extremely conductive silver filled epoxy
EM-Tec AG29 short working time- extreme conductive silver filled epoxy- 19g in 2 syringes (each)
£185.99 Add to basket -
Long working time, extremely conductive silver filled epoxy
EM-Tec AG30 long working time- extreme conductive silver filled epoxy- 21g in 2 syringes (each)
£138.50 Add to basket -
Short working time, conductive silver filled epoxy
EM-Tec AG31 short working time- conductive silver filled epoxy- 14g in 2 syringes (each)
£124.04 Add to basket -
Long working time, high conductive silver filled epoxy
EM-Tec AG32 long working time- high conductive silver filled epoxy- 15g in 2 syringes (each)
£110.94 Add to basket