EPO-TEK® MED-H20E

Technical Data Sheet
For Reference Only

Biocompatible/Electrically Conductive(ECA), Silver Epoxy

ISO 10993 Tested/Fully Compliant

Date:
Rev:
No. of Components:
Mix Ratio by Weight:
Specific Gravity:
Pot Life:
Shelf Life- Bulk:
Shelf Life- Syringe:

Biocompatible Certified Cure: 150°C / 1.5 Hours

February 2021
VIIITwo1:1
Part A: 2.03
Part B: 3.07
2.5 Days
One year at room temperature
One year at -40°C

Alternative biocompatible cure schedules may be possible,
but have not been certified. Contact med@epotek.com
with any questions.

NOTES:● Container(s) should be kept closed when not in use.
● Filled systems should be stirred thoroughly before mixing and prior to use.
● Performance properties (rheology, conductivity, others) of the product may vary from those stated on the data sheet when bi-pak/syringe packaging or
post-processing of any kind is performed. Epoxy’s warranties shall not apply to any products that have been reprocessed or repackaged from Epoxy’s
delivered status/container into any other containers of any kind, including but not limited to syringes, bi-paks, cartridges, pouches, tubes, capsules, films
or other packages.

Product Description: EPO-TEK® MED-H20E is a biocompatible, silver-filled epoxy with electrical and high thermal conductivity. It is awell characterized and relied upon ECA, with over 40 years of successful design use. It is versatile in curing techniques; from box oven,to IR, to hot plate, to convection ovens and is used for circuit connections. Some typical applications are: pacemaker hybrid circuits, Xrays, ultrasound, and hearing aids using MEM or hybrid technology.
Typical Properties: Cure condition: 150°C / 1.5 Hours
Different batches, conditions & applications yield differing results.
Data below is not guaranteed. To be used as a guide only, not as a specification. * denotes test on lot acceptance basis
PHYSICAL PROPERTIES:* Color (before cure):* Consistency:* Viscosity (23°C) @ 100 rpm:
Thixotropic Index:* Glass Transition Temp:
Coefficient of Thermal Expansion (CTE):
Below Tg:
Above Tg:
Shore D Hardness:
Lap Shear @ 23°C:
Die Shear @ 23°C:
Degradation Temp:
Weight Loss:@ 200°C:@ 250°C:@ 300°C:
Suggested Operating Temperature:
Storage Modulus:* Particle Size:

Part A: Bright shiny silver
Part B: Slightly shiny silver
Smooth thixotropic paste
2,200-3,200 cPs
4.0≥ 80 °C (Dynamic Cure: 20-200°C/ISO 25 Min; Ramp -10-200°C @20°C/Min)

ELECTRICAL AND THERMAL PROPERTIES:
Thermal Conductivity:* Volume Resistivity @ 23°C:

58278
70
1,428
≥ 10432
0.66
1.10
1.64
< 375
1,046,490≤ 45

x 10-6 in/in°C
x 10-6 in/in°C
psi
Kg
°C

3,556 psi%%%°C (Intermittent)psimicrons2.56≤ 0.0004

W/mKOhm-cmEpoxies and Adhesives for Demanding Applications™
This information is based on data and tests believed to be accurate. Epoxy Technology, Inc. makes no warranties (expressed or implied) as toits accuracy and assumes no liability in connection with any use of this product.
EPOXY TECHNOLOGY, INC.
14 FORTUNE DRIVE, BILLERICA, MA 01821 (978) 667-3805, FAX (978) 663-9782
www.epotek.com
A Meridian Adhesives Group Company

epotek.com

Selected Applications for EPO-TEK® MED-H20E
Fiber and Electro-OpticalDevices, Implantable Devices and Diagnostics• Die-attaching LED chips in surgical lighting products, whether light guides
or headlamps• A very shiny and reflective metal appearance, suitable as “opto-mirrors” foundin fiber optic sensor/catheter devices• As a very high thermal conductor, it is an excellent choice for thermal
management and TIM applications, in LEDs and lasers• MED-H20E is a world leading ECA for in hybrid circuit assembly andhermetically sealed microelectronics for multiple types of implants such as:
cardiac, cerebral, spinal, ophthalmic, neurostimulator and cochlear• Used in electrically contacting chips, SMDs, PCBs, ground and lead-wires;suggested contacts include: Au, Ag, AgPd, Pt, PtIr, SST and nitinol• Connecting RFID chips to their antenna coil, whether an implant or anendoscope capsule• A favorite ECA among ISO 13485 medical devices contract manufacturers• Commonly used ECA for hearing aids using hybrid, ECM orMEMs technology

Radiation and Imaging• MED-H20E is an Electrically Conductive Adhesive (ECA) used in X-ray
detection technologies with scintillator crystal and photodiode arrays as it canbe easily dispensed, stamped or screen printed onto PCB/substrates, using
direct chip or flip chip attachment processes• Also used in Ultrasound: PZT/Ferro-electronics using ECA for PZT/Au
connections to matching PCB, for ultrasound imaging arrays, vibration
resistant adhesive

Surgical Tools• Connecting RFID chips to their antenna coil for instrument tracking throughsterilization cycles

Adhesive Applications for EPO-TEK® MED-H20E
࠮ -SPW*OPW(ZZLTIS`
࠮ 7OV[VKPVKL(YYH`ZMVY*;HUK?YH`+L[LJ[VYZ

࠮ 0*7HJRHNPUNVM4,4:+L]PJLZ
࠮ 7YLZZ\YL:LUZVYZ
࠮ (JJLSLYVTL[LYZ

࠮ .LULYHS7*)3L]LS,*(࠮ :VSKLY9LWSHJLTLU[࠮ /LH[:PUR
࠮ ;OLYTHS0U[LYMHJL4H[LYPHS;04

*OPWVU)VHYK+PL([[HJO*6)

Me-SL_7*)

࠮ 7OV[VUPJZHUK3HZLYZ
࠮ +PL([[HJO࠮ 3V^;OLYTHS9LZPZ[HUJL
࠮ *46:**+0THNL:LUZVYZHUK*HTLYH

࠮ 0UZ[Y\TLU[H[PVU࠮ +PHNUVZ[PJZ
࠮ <S[YHZV\UK࠮ /LYTL[PJ7HJRHNPUN0TWSHU[Z࠮ /`IYPK*PYJ\P[(ZZLTIS`
࠮ 8\HY[a*Y`Z[HS6ZJPSSH[VYZ
࠮ :4+HUK+PL([[HJO

d i ca l GradeEpoxy Technology Inc.

E P O - T E K®

14 Fortune Drive • Billerica, MA 01821
phone 978-667-3805 fax 978-663-9782
med@epotek.com© Epoxy Technology Inc. 2018

Biocompatibility Approval• EPO-TEK® MED-H20E cured at 150°C for 1.5 hours has been tested and is ISO 10993 certified, meeting Hemolysis (10993-4 ), Cytotoxicity(10993-5), Implantation (10993-6), Intracutaneous (10993-10), Sensitization (10993-10) and Systemic Toxicity (10993-11) test protocols.

Sterilization Information• MED-H20E contains silver which should never be exposed to moisture or bio-fluids since an oxide layer will form, compromising performance andreliability. Therefore it should always be protected, via semiconductor packaging methods, isolating it from its hostile sterilization environments such as:
ETO, autoclave and Vaporized Hydrogen Peroxide (VHP) plasma.

Packaging Availability• EPO-TEK® MED-H20E is available in specialty packaging such as Pre-Mixed Frozen Syringes (PMF), Bi-Paks, or bulk (A & B containers).
• A Bi-Pak video tutorial can be found here:
http://www.epotek.com/site/technical-material/application-video-tutorials/117-effective-handling-and-mixing-of-epo-tek®-bi-packs.html• A video tutorial on handling frozen syringes can be found here:
http://www.epotek.com/site/technical-material/application-video-tutorials/231-proper-receiving-and-thawing.html

Med i ca l Grade
Epoxy Technology Inc.

E P O - T E K®

14 Fortune Drive • Billerica, MA 01821
phone 978-667-3805 fax 978-663-9782
med@epotek.com© Epoxy Technology Inc. 2018
EPO-MH20E-02