Conductive Epoxy and Tape

  • Conductive Silver Epoxy
  • Thermally Conductive Double-Sided Tape


Silver Epoxy 4.4 g


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Thorlabs offers the Electrodag™ 5810 Conductive Epoxy and two sizes of Thermally Conductive Double-Sided Tape. Thorlabs also carries standard epoxies and adhesives.

Posted Comments:
user  (posted 2022-07-19 12:50:53.33)
Dear Thorlabs, Hi, I am interested in your EG58 conductive adhesive. I want to attach a wire to the gold electrode with conductive adhesive. But I cannot understand how to use EG58 just by looking at the picture. Could you please explain further?
jdelia  (posted 2022-07-19 03:49:42.0)
Thank you for contacting Thorlabs. This type of information can be found in the supporting documents for the EG58, in this case the spec sheet.
agerakis  (posted 2016-08-25 20:46:57.95)
Is there any solvent that can be used to aid the removal of TCDT2? It has stuck on a copper piece and won't come off!
bdada  (posted 2012-04-24 19:17:00.0)
Response from Buki at Thorlabs to sebastien.avila: Thank you for participating in our feedback forum. As the 5810 is silver filled, it should have a correspondingly high thermal conductivity. However, this value has not been tested by the manufacturer. Due to the wide range of applications, temperatures, substrates, and environments in which this product can be used, we recommend first testing its fitness for use in your specific application. We would be happy to provide you with a sample for testing. We have contacted you to provide further assistance.
sebastien.avila  (posted 2012-04-23 12:03:47.0)
Hello, What is the thermal conductivity of the EG58 in W/mK?
bdada  (posted 2012-03-15 14:01:00.0)
Response from Buki at Thorlabs: Thank you for your feedback. Unfortunately, we do not have the spectral absorption data. Please contact us at if you want to discuss your application further to ensure this epoxy is suitable.
user  (posted 2012-03-13 14:11:50.0)
Is there spectral absorption data available for this product?
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Conductive Epoxy

  • Ideal for Mounting Conductive Components that Cannot be Soldered
  • Low Resistance Epoxy Coating or Adhesive, 0.0007 Ohm-cm
  • Lap Shear: 1000 psi
  • Maximum Operating Temperature of 250 °F (121 °C)

Thorlabs offers Electrodag™ 5810 Conductive Epoxy for use in places where soldering is not possible. This two-component epoxy has good electrical and thermal conductivity, featuring a low volume resistance of 0.0007 Ohm-cm and a lap shear of 1000 psi. The silver-filled epoxy has a cure time of 24 hours at room temperature; the cure time can be accelerated to 2 hours at 149 °F (65 °C) or 1 hour at 212 °F (100 °C). The epoxy is packaged in two separate bags with a net weight of 4.4 grams.

The shelf life of EG58 Epoxy will vary depending on the date the epoxy was packaged at the manufacturer. For information on the shelf life of EG58 Epoxy, please contact Tech Support.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
EG58 Support Documentation
EG58Electrodag 5810 Silver Epoxy 4.4 g
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Pressure-Activated Thermally Conductive Double-Sided Tape

  • Thermally Conductive Double-Sided Acrylic Adhesive Tape
  • 0.009" (0.229 mm) Thick
  • Two Options:
    • TCDT1: 1" Wide x 48" Long (25.4 mm x 1219 mm)
    • TCDT2: 2" Wide x 24" Long (50.8 mm 610 mm)
  • Great Alternative to Heat-Cured Adhesives, Screw Mounting, or Clip Mounting
  • Provides a High Bond Strength to a Variety of Surfaces
  • Can be Removed without Damaging Parts

The thermally conductive, double-sided tape consists of a superior bond strength, pressure-sensitive acrylic adhesive loaded with titanium diboride and applied to an expanded aluminum carrier. The tape is embossed with an innovative pattern for maximum conformability and minimal air pockets and offers excellent thermal, mechanical, environmental, and chemical properties. Our thermally conductive double-sided tape can bond heat sinks and thermal plates to components without the use of clips, screws, other mechanical fasteners, or additional thermal compounds and can be removed after the application without damage to the component.

Usage Instructions
This tape requires pressure to bond. At room temperature, we recommend holding components together with a minimum of 10 psi for 15 seconds, or preferably 30 psi for 5 seconds.

Before application, ensure that bonding surfaces are free from oil, dust, or any contamination that may affect bonding. Wearing gloves, wipe surfaces with a clean, lint-free cloth dampened with industrial solvents such as acetone or isopropyl alcohol. When cutting tape to size, we recommend cutting it slightly smaller than the area to be taped.

Apply the tape to the center of the heat sink bonding area and smooth over the entire surface with a hand or roller. More pressure produces better wetting out of the adhesive to the contact surfaces. A twisting motion during assembly of the two bonding surfaces will typically improve wetting. Note that typically 70% of the ultimate adhesive bond strength is achieved with initial application, and 80-90% is reached within 15 minutes. Ultimate adhesive strength is achieved within 36 hours; however, the next handling step can typically occur immediately following the initial application.

To remove, carefully insert a thin, short blade into the bond line at a corner between the components. Remove the blade and insert a spatula into the wedge. Slowly twist the spatula blade so that it exerts a slight upward pressure. As the two surfaces start to separate, move the spatula blade deeper into the bond line and continue the twisting motion and upward force. After the two components are separated, the tape can be removed and discarded.

If adhesive remains on the surfaces, it should be removed. Adhesive is best removed by wiping with a clean, lint-free cloth dampened with solvent. Use sufficient solvent to remove all adhesive. Parts must be free of solvent before applying more adhesive.

Item # TCDT1 TCDT2
Carrier Expanded Al
Color Grey
Thickness 0.009" ± 0.001" (0.229 mm ± 0.03 mm)
Thermal Impedance @ <1 psi 0.25 °C-in2/W (1.7 °C-cm2/W)
Thermal Conductivity 1.40 W/m-K
Voltage Breakdown N/A
Volume Resistivity 0.013 ohm-cm
Flammability Rating (E140244) Not Rated
Lap Shear Adhesion 70 psi (0.483 MPa)
Item # TCDT1 TCDT2
Die Shear
Aluminum 135 psi (0.931 MPa) @ 25 °C
25 psi (0.172 MPa) @ 150 °C
Copper 115 psi (0.793 MPa) @ 25 °C
35 psi (0.241 MPa) @ 150 °C
Aluminum Oxide 125 psi (0.862 MPa) @ 25 °C
40 psi (0.276 MPa) @ 150 °C
25°C, 12 psi (0.083 MPa) >50 days
150°C, 12 psi (0.083 MPa) >50 days
Adhesive CTE, -40 to 150 °C 400 ppm/°C
Dimensions 1" x 48"
(25.4 mm x 1219 mm)
2" x 24"
(50.8 mm x 610 mm)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
TCDT1 Support Documentation
TCDT1Thermally Conductive Double-Sided Tape, 1" x 48" (25.4 mm x 1219 mm)
TCDT2 Support Documentation
TCDT2Thermally Conductive Double-Sided Tape, 2" x 24" (50.8 mm x 610 mm)