EPO-TEK® 353ND-T
Technical Data Sheet
For Reference OnlyHigh Temperature Thixotropic Epoxy

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

July 2019
VIIITwo
10 : 1
Part A: 1.12
Part B: 1.02
3 Hours
One year at room temperature
Six months at -40°C

Recommended Cure: 150°C / 1 Hour
Minimum Alternative Cure(s):May not achieve performance properties listed below
150°C / 1 Minute
120°C / 5 Minutes
100°C / 10 Minutes
80°C / 30 Minutes● 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.
● Syringe packaging will impact initial viscosity and effective pot life, potentially beyond stated parameters.
● TOTAL MASS SHOULD NOT EXCEED 25 GRAMS

Product Description: EPO-TEK® 353ND-T is a two component, highly thixotropic epoxy with non-flowing properties and hightemperature resistance.
Typical Properties: Cure condition: 150°C / 1 Hour
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 basisPHYSICAL PROPERTIES:* Color (before cure):* Consistency:* Viscosity (23°C) @ 20 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:
Ion Content:

Part A: Tan
Part B: Amber
Smooth thixotropic paste
9,000 - 15,000 cPs
3.8≥ 90 °C (Dynamic Cure: 20-200°C/ISO 25 Min; Ramp -10-200°C @20°C/Min)
4323180
1,953≥ 15409* Particle Size:

0.53
1.22
2.37
< 325559,120471 ppm
400 ppm
99% ≤ 20

ELECTRICAL AND THERMAL PROPERTIES:
Thermal Conductivity:
Volume Resistivity @ 23°C:
Dielectric Constant (1KHz):
Dissipation Factor (1KHz):

N/A≥ 4 x 1012
3.21
0.003

Cl-:
NH4+:

x 10-6 in/in°C
x 10-6 in/in°C
psiKg
°C

5,334 psi%%%°C (Intermittent)psiNa+:
143 ppm
K+:
15 ppmmicrons

Ohm-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

EPO-TEK® 353ND-T
Technical Data Sheet
For Reference OnlyHigh Temperature Thixotropic Epoxy

EPO-TEK® 353ND-T Advantages & Suggested Application Notes:● Suitable for fiber optic and circuit assembly applications.
● Recommended for bonding metals, glass, ceramics and many types of plastic.
● High temperature adhesive for hybrids and medical devices; it can resist within the 300°C
range for long periods of time.
● Circuit assembly applications; staking SMD's to PCB, bonding ferrite cores together incopper coil windings, inductor coils and power devices; suitable for COB glob top DAM
material.
● Alternative product versions available with distinct viscosity ranges - contact Technical
Services at techserv@epotek.com for best recommendation.
● Can be applied by screen printing, spatula, hand held or automatic dispensing equipment.
● Amber color change when properly cured for easy visual ID and inspection.

Epoxies 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