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Conductive paints, pastes and cements

Conductive paints and adhesives are indispensable for SEM and FIB specimen preparation and specimen mounting. They enable quick specimen mounting and deliver the conductivity needed for SEM and FIB applications.

EM-Tec conductive paints and cements from Micro to Nano are specially selected for specimen preparation use in electron microscopy, focused ion beam, electron microprobe and scanning probe applications. EM-Tec conductive paints, pastes and cements offer different properties to cover a variety of applications.

Conductive paint and adhesives are ideal to make conductive paths to ground for SEM specimens. Used for making contacts, conductive bonding of specimens on specimen stubs or shielding surfaces of non-conducting specimens. EM-Tec conductive paint and cements are used for many applications besides electron microscopy in repairing contacts, tracks on circuit boards, prototyping, conductive lubrication, electrochemical plating and EMI/RFI shielding. EM-Tec C30 premium water based conductive carbon paint is solvent free and should be preferred to avoid hydro-carbon contamination in the SEM.

EM-Tec conductive silver epoxies enable embedding and cementing specimens 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 create conductive contact.  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, specimen preparation and prototyping.

Please also see our range of:

High purity conductive double sided adhesive carbon tabs and tapes

Super smooth carbon tabs and tapes

Conductive copper tapes

Conductive aluminum tapes

For each paint we have specifications and SDS available for download. See adjacent tabs

Paint / Cement

EM-Tec
C30

EM-Tec
C32

EM-Tec
C33

EM-Tec
C38

EM-Tec
AG15

EM-Tec AG42

EM-Tec AG44

EM-Tec AG46

EM-Tec
AC29

EM-Tec
NI41

Product # 15-001130 15-001132 15-001133 15-001138 15-002114
15-002115
15-002141
15-002142
15-002143
15-002144
15-002145
15-002146
15-002129 15-004141

Filler Type

wt%

Graphite 20%

Graphite

10%

Graphite

10%

Carbon

15%

Silver

58%

Silver

73%

Silver

61%

Silver

60%

Copper / Silver

31%

Nickel

50%

Type thin paste thin paste thin paint thin paste paint thin paste thin paste paint thin paint thin paste
Resistance (dry) 30 ohm/sq 30 ohm/sq 1200 ohm/sq 50 ohm/sq 0.015 ohm/sq 0.01 ohm/sq 0.01 ohm/sq 0.01 ohm/sq 0.015 ohm/sq 0.7 ohm/sq
Binder

gel

gel polymer acrylic thermoplastic resin acrylic acrylic urethane acrylic acrylic
Solvent

water

water Isopropanol Acetone/ MEK MEK Toluene
/acetone
Acetone Water Acetone Toluene/
acetone
Density 1.12g/cm3 1.08g/cm3 0.84g/cm3 0.85g/cm3 1.63g/cm3 2.05g/cm3 1.7g/cm3 1.5g/cm3 1.1g/cm3 2.1g/cm3
Touch dry

5 min

5 min 2-3 min 3min 10min 5min 3min 5min 3min 5min
Full cure time @ 22°C

24hr

24hr 1hr 24hrs 8hrs 24hrs 24hrs 24hrs 8hrs 24hrs
Full cure time @ 65°C

45min

45min 10min 30min 30min 30min 30min 3hrs 30min 30min
Minimum temperature

-20°C

-20°C -20°C -40°C -20°C -40°C -40°C -40°C -40°C -40°C
Maximum temperature

+140°C

+140°C +200°C +120°C +105°C +120°C +120°C +120°C +120°C +120°C
Mechanical strength

low

low low high medium high low low low high
Vacuum compatible (dry)

excellent

excellent yes yes yes yes yes yes yes yes
RoHs compliant

yes

yes yes yes yes yes yes yes yes yes
Weight

40g

25g 15g 25g 15g / 25g 15g / 25g 15g / 25g 15g / 25g 25g 25g
Bottle size

60cc

30cc 30cc 30cc 15cc / 30cc 15cc/15cc 15cc/30cc 15cc/30cc 30cc 30cc
Thinner-Extender

Water

Water Isopropanol Acetone MEK Acetone Acetone Water Acetone Acetone
Shelf life @ 20°C

> 3 year

> 3 year > 1 year > 3 year > 3 year > 3 year > 3 year > 3 year > 2 year > 3 year
SDS (click links to view) C30 C32 C33 C38 AG15 AG42 AG44 AG46 AC29 NI41

Epoxy type EM-Tec AG 30 EM-Tec AG 31 EM-Tec AG 32
Product # 15-002430 15-002431 15-002432
Pot life 4 hrs 10 minutes 4 hrs
Electrical conductivity 0.0007 ohm.cm 0.0174 ohm.cm 0.006 ohm.cm
Thermal conductivity @ 25°C
@ 50°C
@ 100°C
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 73D 75D 73D
Density 2.82 2.44 2.19 g/cm3
Outgassing (curing) 0.03% 0.16% 0.04%
Vacuum compatibility Good Less Good
Compression strength 35.9 MPa 13  Mpa 64.6 MPa
Tensile strength 8.9 MPa 6.28 Mpa 13.5 MPa
Cure time @ 22°C
Cure time @ 65°C
Cure time @ 100°C
96 hrs
120 minutes
60 minutes
24 hours
15 minutes
11 minutes
96 hours
120 minutes
50 minutes
Minimum temperature -40°C -55°C -40°C
Maximum temperature +150°C +150°C +150°C
Weight (in 2 syringes) 21g 14g 15g
Mixing ratio 1:1 by volume 1:1 by volume 1:1 by volume
Shelf life @ 20°C > 2 years > 2 years > 2 years
SDS SDS SDS

 

Material Silver filled polymer
System Single component, solvent
Silver particle size 10-15µm
Fill 8.5 grams
Conductivity 0.2-0.5 ohms/square/25µm
Max. temperature 205°C (400°F)
Tack-free time @25°C 3-5 minutes
Cure time @ 25°C 20-30 minutes
Cure time @ 125°C 5 minutes
Pen tip 0.8mm
Trace width 1.0 – 1.6mm
SDS

 

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