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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 and Conductive metal 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

 

Ordering information:

Carbon based paints and cements

A selection of water and solvent based carbon paints

Silver based paints and cements

A selection of water and solvent based silver paints

Solvents for paints and cements

A selection of  solvents for solvent based carbon and silver paints

Nickel paint

Nickel paint is a lower cost alternative to silver paint

Silver filled epoxies and silver pen