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Prices are current as of Saturday, 23/03/2019.
Prices are GST exclusive. Tax is added at checkout.

Product Code: EMS12670-EE

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Epo-Tek® EE129-4 is a room temperature cure, silver-filled epoxy, designed for making electrical connection in SEM mounting sample, circuit assembly, semiconductor, LCD applications. Epo-Tek® EE129-4 comes with two parts: A & B and mixing ratio is 1:1. Shelf life is one year at room temperature Works well with surface like Au, Ag-Pd, Cu, brass, Kovar, stainless steel, as well as ceramic, PCB, solder masks, most plastic and glasses.

* Low temperature cures capable from 23°C to 80°C. 

* Suggested for cryogenic cooling applications 

* Works well in SEM, microscopy applications 

* Works well in aerospace hybrid circuits and ITO electrodes in LCD packaging and assembly 

* Reasonable pot life of 3 hours, allows for preparation. 

* Smooth thixotropic paste allows for many way of application

Maximum Bond Line Cure Schedules:

100°C......................15 minutes 80°C ...............................1 hour 70°C..............................2 hours 23°C............................24 hours Pot Life .........................3 hours

Typical Properties 12670-EE Epo-Tek® EE129-4 Adhesive 1 oz (to be used as a guide only, not a specification)

Physical Properties: 

Color: Part A – silver; Part B – silver Consistency: Smooth, thixotropic – 4000 cPs Viscosity (@ 100 RPM / 23˚C): 2,000 – 4000 cPs Thixotropic Index: 4.6 Glass Transition Temp (Tg): ≥ 45˚C (Dynamic cure 20 – 200˚C / ISO 25 Min; Ramp -10 – 200˚C @20˚C/Min) Coefficient of Thermal Below Tg: 30 x 10-6 in/in/˚C Expansion (CTE): Above Tg: 227 x 10-6 in/in/˚C Shore D Hardness: 63 Lap Shear Strength @ 23˚C: 1,110 psi Die Shear Strength @ 23˚C: ≥ 5 kg / 1,700 psi Weight Loss: @200˚C: 0.18%; @250˚C: 0.54%; @300˚C: 2.06% Degradation Temp (TGA): 303˚C Operating Temp: Continuous: -55˚C to 150˚C Intermittent: -55˚C to 250˚C Storage Modulus @ 23˚C: 156, 318 psi Ion: Cl- 223 ppm; Na+ 26 ppm NH4 + 22 ppm; K+ 12 ppm Particle Size: ≤ 45 microns Electrical Properties: Volume Resistivity @ 23˚C: ≤ 0.0003 Ohm-cm Volume Resistivity @ 23˚C (23˚C/24 hour cure): 0.01 Ohm-cm Thermal Properties Thermal Conductivity: 1.60 W/mK


Orders with items in stock are packed within 24 hours. We ship with our best choice of courier, depending on goods ordered and shipping address provided.


Standard delivery

Express delivery


Next day



2-3 business days



4-10 business days

2-3 business days


6-14 business days

2-3 business days



5-14 business days

*Note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers' control.

Standard shipping is $15 in Australia (free on orders over $200). Add $5 to ship Express (under 2kg only)


Order online and collect from our warehouse in Townsville.


Freight Charge

Ready for collection

11 Carlton Street, Kirwan


Once invoice has been emailed
(Less than 1 business day)

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