OB-100-OB-200-OT-200

Supported Applications

The Omega OMEGABOND® epoxy and OMEGATHERM® thermal conducting pastes are formulated for the permanent and temporary bonding of thermocouples, thin film RTDs, thermistors, and other temperature sensors. These products adhere to most surfaces including metals (M), ceramics (C), plastics (PL), paper products (PA), wood (W), glass, and various plastic types with proper surface preparation.

Operating Conditions & Performance

The series offers distinct performance envelopes based on the specific formulation. Maximum continuous temperatures range from 105°C (221°F) for OB-101 to 260°C (500°F) for OB-200, with OMEGATHERM® OT-201 rated up to 200°C (392°F). Thermal conductivity varies significantly across the line: OB-100 is classified as Low; OB-101 provides High thermal conductivity at 7.2 BTU(in)/(hr)(ft²)(°F); and OB-102, OB-200, and OT-201 offer Very High to Extremely High ratings of 9.6 to 16 BTU(in)/(hr)(ft²)(°F).

Electrical insulation volume resistivity ranges from High at 10¹² ohm-cm (OB-100) to Very High levels between 10¹⁴ and 10¹⁵ ohm-cm for the other formulations. Mechanical strength varies by model, with Tensile Shear strengths listed as minimums of 2000 PSI (OB-100), 2200 PSI (OB-101), and 2700 PSI (OB-200). OB-102 is characterized for low stress bonding. Flexure Strength values are documented at a minimum of 12,000 PSI for OB-101 and 17,000 PSI for OB-200.

Curing Characteristics

• OB-100: Fast set epoxy with an 8 to 12 minute set time at room temperature; working life is approximately 8 minutes at room temp.
• OB-101 & OB-102: Cure at room temperature or via heat acceleration. OB-102 offers a 45-minute working life at 25°C/77°F and can be cured in 4 to 6 hours at 45°C/113°F, or 1 to 2 hours at 65°C/149°F.
• OB-200: Requires elevated temperature for cure; working life is 24 hours at room temp.
• OT-201: Silicone grease requiring no cure time.

Configuration Options

The series supports multiple packaging configurations designed to ensure accurate proportioning of resin and catalyst. Products are supplied in 'Twin Pak' formats for epoxies or jars/cans for pastes, facilitating clean mixing and application.

Packaging Sizes & Formats

• OMEGABOND® 100 (OB-100): Available in one ¼ oz twin pak, one 1 oz twin pak, or an 8 oz resin/8 oz catalyst kit.
• OMEGABOND® 101 (OB-101): Offered as a one ½ oz twin pak, one 2 oz twin pak, or an 8 oz resin/8 oz catalyst kit.
• OMEGABOND® 102 (OB-102): Supplied in kits with specific mix ratios of 100 parts material to 3.5 parts catalyst by weight; sizes include ½ oz, 2 oz resin/½ oz catalyst, and a large kit.
• OMEGABOND® 200 (OB-200): Available in one 2 oz twin pak or a 1 lb resin/2 oz catalyst kit.
• OMEGATHERM® 201 (OT-201): Provided in ½ oz jars, 2 oz jars, and 16 oz cans.

A Multi-Purpose OMEGABOND® and OMEGATHERM® Kit is also available containing four ¼ oz Twin Paks of OB-100, two ½ oz Twin Paks of OB-101, one 2 oz Twin Pak of OB-200, and two ½ oz Jars of OT-201.

Key Product Differences

The series distinguishes between fast-set epoxies (OB-100), standard room temperature cure epoxies with varying thermal conductivity (OB-101, OB-102), and high-temperature elevated-cure epoxy (OB-200). OMEGATHERM® OT-201 differs as a non-hardening silicone grease. Coefficient of Thermal Expansion values are documented for specific models: 51 x 10⁻⁶ in/in/°F for OB-100, and approximately 20–21 x 10⁻⁶ in/in/°F for OB-101 and OB-200. Adhesion capabilities vary slightly; while most models adhere to Metal, Ceramic, Plastic, Paper Products, and Wood, OB-102 adheres to M, C, and some PL with proper surface prep (cleaning / abrasion).