Omega Products OB-100-16 User Manual

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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

) (°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

1015 1015 10

–6

20 x 10–6 21 x 10

–6

—

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OB-200-2

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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

⁄2- and 2-ounce

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:

4 —

⁄4 oz “Twin Paks” of OMEGABOND® 100

2 —

⁄2 oz “Twin Paks” of OMEGABOND® 101

1 — 2 oz “Twin Pak” of OMEGABOND

2 —

⁄2 oz Jars of OMEGATHERM

When ordering, specify “MPK-1”

201

200

OB-101-2

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