Omega Products OB-100-16 User Manual

Epoxies and Thermally
Conductive Pastes

®

OMEGABOND® epoxy and OMEGATHERM

thermal
conducting pastes are high temperature and high thermally
conductive epoxies and silicone products. They are
specially formulated for permanent and temporary bonding
of thermocouples, thin film RTDs, thermistors and other
temperature sensors. The pastes are also formulated to
most surfaces–metals, ceramics, glass, plastics, and
paper products.

®

OMEGABOND

and OMEGATHERM® products are
compounded and packaged for convenient, easy mixing
and application. Each formulation exhibits important
characteristics necessary for accurate, fast, reliable
temperature measurement. These are: good adhesion and
strength, high temperature rating, high thermal conduction,
high electric insulation, thixotropic consistency, fast cure,
and easy application.

To assist in your selection, a summary of each product’s
properties are shown in the accompanying table.

“Twin pak” packaging is supplied to ensure the user with
accurate proportioning of resin and catalyst, as well as to
provide a clean, fast means of mixing. The “Twin Pak” is
a flexible, transparent plastic pouch, separated into
two isolated compartments by means of a removable
external divider. In one compartment is the resin, in the
other compartment is the pre-measured catalyst. To use,
remove the divider, mix the two components by kneading
the pouch, then snip-off a corner to dispense. Each “Twin
Pak” comes with an instruction sheet, enclosed in a clear,
heat-sealed plastic envelope.

Typical Properties

Model No. OB-100 OB-101 OB-200 OT-201
Material Fast set Epoxy Epoxy Silicone

epoxy adhesive adhesive grease
adhesive

Max. Continuous 130°C 105°C 260°C 200°C
Temperature (265°F) (221°F) (500°F) (392°F)

Cure
set room temp temp required
temp

Working Life 8 min 30 min 24 hr
at room at room at room —
temp temp temp

Adheres to M, C, PL, M, C, PL, M, C, PL, Wets
Most* PA, W PA, W PA, W most
surfaces

Thermal
conductivity (k) Low High Very high
Extremely
(BTU) 7.2 9.6 high
(in)/(hr) 16

2

) (°F)

(ft
Electrical

Insulation High Very high Very high Very high
Volume 10

Resistivity

ohm–cm
Tensile

Shear 2000 2200 2700 —
PSI MIN

Flexure
Strength — 12,000 17,000 —
PSI MIN

Coefficient of
Thermal 51 x 10

Expansion

in/ in/ °F

M = Metal PA = Paper Products

*

C = Ceramic W = Wood
PL = Plastic

The above information, while determined by tests and evaluation,
is offered only as a general guide. Actual suitability for a particular
purpose must be determined by material user. This information is not
to be taken as a warranty for which we assume legal responsibility.

8 to 12 min

Room Elevated Not

12

1015 1015 10

–6

20 x 10–6 21 x 10

14

–6

—

F-21

OB-200-2

OMEGABOND® 100

®

OMEGABOND

room temperature, two-part epoxy. Recommended for
easy temporary and permanent bonding of beaded
wire and “cement-on” thermocouples. Adheres to metals,
ceramics, epoxy laminates, glass, wood, concrete and
many other materials—for temperature measurements
up to 129°C (265°F). It is not recommended for those
endeavoring to achieve the ultimate in precision and speed
of response, since this unfilled system has a relatively low
thermal conductivity.

Temporary installation of beaded wire thermocouples
can be achieved by using a very small amount of
OMEGABOND
and packing OMEGATHERM
surface to improve heat transfer. This clear syrup
consistency—100% solid adhesive — contains no
solvents and has good strength and electrical insulation
characteristics. Note: The working time after mixing the
2-part system at room temperature is only 6 to 8 minutes.
OMEGABOND 100 is available in “Twin Pak” packs and 1­and 2-pound kits.

100—a fast (8 to 12 minute setting time),

®

100 to tack the bead to the surface

®

201 around the exposed

OMEGATHERM® 201

OMEGATHERM® 201—is a very high thermally conductive

filled silicone paste, ideally suited for many temperature
measurement applications. This thick, grey, smooth paste
wets most surfaces and will not harden on long exposure
to elevated temperatures. It is rated for continuous use
between -40 and 200°C (-40 and 392°F).

®

OMEGATHERM
conducting heat and expanding the heat-path area from
a surface to a temperature measurement sensor, thus
increasing the speed of response and improving accuracy.
Some applications are:

a) Surface Measurement Probes — dab a small amount
on the surface and push the sensor into this area.

b) Temporary bonding and encapsulating of
temperature sensors — simply dab OMEGATHERM
201 onto the surface or in the cavity, plant the sensor
in the paste, and tape to hold in place.

This highly versatile paste is supplied in
jars, as well as in 1- and 2-pound containers.

201 provides an excellent means of

1

⁄2- and 2-ounce

®

F

OMEGABOND® 101

®

OMEGABOND

101—is a very versatile room-temperature

curing, highly thermally conductive, 2-part epoxy adhesive
designed specifically to bond permanently “cement-on”
and beaded wire thermocouples and other sensors to the
widest variety of materials. Adheres to most metals, wood,
ceramics, cements, paper products, and many plastics and
rubbers. It is rated for continuous use at 105°C (221°F).
This thixotropic off-white paste will set up in approximately
four hours at room temperature with full curing in 24 hours.
Curing can be accelerated by applying moderate heat.

®

OMEGABOND

101 has excellent shear and tensile
strength, high electrical insulation and excellent chemical
and solvent resistance. It is supplied in convenient “Twin
Pak” packs as well as 1- and 2-pound kits, and is easy to
mix, apply and cure.

OMEGABOND® 200

®

OMEGABOND

thermally conductive, 2-part epoxy system which will bond
sensors to most materials, including metals, glass, ceramics
and most plastics. It is recommended for bonding of
“cement-on” and beaded wire thermocouples for accuracy
and fast temperature measurement to 260°C (500°F). This
epoxy system cures at elevated temperatures. Curing time
is 8 hours at 120°C (250°F), 2 hours at 205°C (400°F).
It has excellent strength and electrical insulating
characteristics. Its thixotropic paste consistency virtually
ensures freedom from sag during curing when applied to
vertical surfaces.

OMEGABOND
10 parts catalyst by weight, and is supplied in
“Twin Paks” to ensure proper formulating.
1- and 2-pound kits
are also available.

OB-100-1

200—is a black, high temperature, high

®

200 is mixed 100 parts resin to

To Order Visit omega.com/ob-100_ob-200_ot-200 for

Pricing and Details

Model No. Description

OB-100-1/4 OMEGABOND 100 epoxy, one 1⁄4 oz

twin pak
OB-100-1 OMEGABOND 100 epoxy, four 1⁄4 oz

twin pak
OB-100-16 OMEGABOND 100 epoxy, 8 oz resin,

8 oz catalyst kit
OB-101-1/2 OMEGABOND 101 epoxy, one 1⁄2 oz

twin pak
OB-101-2 OMEGABOND 101 epoxy, one 2 oz

twin pak
OB-101-16 OMEGABOND 101 epoxy, 8 oz resin,

8 oz catalyst kit
OB-200-2 OMEGABOND 200 epoxy, one 2 oz

twin pak
OB-200-16 OMEGABOND 200 epoxy, 1 lb resin,

2 oz catalyst kit

OT-201-1/2 Thermally conductive paste, 1⁄2 oz jar
OT-201-2 Thermally conductive paste, 2 oz jar
OT-201-16 Thermally conductive paste, 16 oz can

Multi-Purpose
OMEGABOND® and OMEGATHERM® Kit

This versatile kit is recommended as a convenient way
to determine the best means to bond sensors before
ordering in quantity. Each kit contains:

1

4 —

⁄4 oz “Twin Paks” of OMEGABOND® 100

1

2 —

⁄2 oz “Twin Paks” of OMEGABOND® 101

1 — 2 oz “Twin Pak” of OMEGABOND

1

2 —

⁄2 oz Jars of OMEGATHERM

When ordering, specify “MPK-1”

®

201

®

200

OB-101-2

F-22