ThreeBond High-Viscosity Fast-Set Liquid Gasket Maker TB1217H — Oil-Resistant, Flexible −60°C to 200°C

ThreeBond TB1217H is a high-viscosity, fast-setting liquid gasket maker engineered to form durable, oil-resistant seals that remain flexible from −60°C to 200°C.

This form-in-place gasket (FIPG) compound is formulated for powertrain and small-engine assemblies where a reliable, non-slumping bead is needed and service can resume immediately after application. TB1217H bonds to many common substrates, resists engine and gear oils, and preserves rubber-like elasticity across a wide temperature range. Its high viscosity means the material stays put during assembly, reducing mess and avoiding squeezed-out sealant in tight joint tolerances.

How quickly can I resume service after applying TB1217H?

TB1217H is a fast-set formulation designed to cure quickly enough that assembled components can be handled or returned to service without extended wait times. While cure speed depends on bead thickness, temperature and part materials, its rapid initial set minimizes downtime in repair or production settings.

• Fast initial tack so parts can be reassembled promptly
• Cure rate increases with temperature and thinner beads
• Immediate handling often possible for typical powertrain uses

Will this gasket maker stay in place on vertical or overhead joints?

The high-viscosity, non-slumping formula of TB1217H is intended to 'hold-in-place' on vertical surfaces and flanges, reducing the risk of sealant droop or run-out during assembly. That stability lets technicians apply a consistent bead even on awkward or angled mating faces.

• Thick consistency prevents sagging on vertical surfaces
• Maintains bead shape during flange mating and torqueing
• Reduces cleanup and the need for temporary supports

Is TB1217H resistant to oils and extreme temperatures?

Yes — this product delivers high resistance to engine and gear oils and retains rubber-like elasticity across a broad temperature span. It is specified for applications that experience both very low and very high temperatures without becoming brittle or flowing excessively.

• Works from −60°C up to 200°C without loss of seal integrity
• Resists degradation from motor oils and gear lubricants
• Maintains flexibility to absorb vibration and thermal cycling

What substrates and applications is this gasket maker best suited for?

TB1217H is tailored for powertrain components and small-engine assemblies where factory-level sealing performance is required. It adheres well to common metals and machined surfaces used in engines and drivetrains, making it a go-to option for valve covers, transmission pans and similar flanged joints.

• Recommended for powertrain and small-engine sealing jobs
• Adheres to aluminum, steel and other typical engine materials
• Factory-specified formulation for consistent, reliable sealing

Who is this for: Technicians, mechanics and engineers who need a professional-grade, high-viscosity FIPG gasket maker that sets quickly, resists engine fluids and remains flexible across wide temperatures. It suits shops and manufacturing lines that require a dependable seal with minimal cleanup and the ability to resume service fast. TB1217H is ideal when a robust, non-slumping bead is more important than low-viscosity flow.