Three Bond 1207B - RTV-Silikon-Flüssigdichtung - 333 ml Kartusche

Overview of sealant Three Bond 1207B

The Three Bond 1207B is an RTV silicone liquid gasket with an acetone-based system. In the 333 ml cartridge it provides a reliable seal for static sealing surfaces in engines, gearboxes and cooling circuits. The seal is characterized by fast bonding, immediate sealing, and good resistance to coolant as well as engine oil.

Key properties include high adhesion, immediate sealing and a shrink- and corrosion-resistant formulation that withstands temperatures from -60 to 200 °C (briefly up to 250 °C). The color is black and the shelf life is about 12 months.

• Packaging: 333 ml cartridge; other sales units: 100 g tubes, 17 kg pails
• Processing: flexible, elastic and easy to apply

Applications in automotive and mechanical engineering

Ideal as a liquid gasket for static sealing surfaces in engines, gearboxes, cooling circuits, as well as housings and covers. Thanks to its elasticity, the seal remains tight even under vibration and reduces leaks over long periods.

Technical data of the RTV silicone sealant

• Density at 25 °C: 1.01 g/cm³
• Viscosity at 25 °C: approx. 100 Pa·s
• Temperature range: -60 to 200 °C, briefly up to 250 °C
• Surface drying: approx. 8 minutes
• Shore hardness D: 30
• Elongation: 400 %
• Tensile strength: 2 MPa
• Shelf life: 12 months
• Sales units: 100 g tubes, 333 ml cartridges, 17 kg pails

Properties and benefits

The RTV system provides an elastic seal that compensates well for temperature changes. The high adhesion on metallic surfaces reduces leaks, while resistance to coolant and engine oil increases the service life of the seal. The black coloration aids clear visibility on dark components.

Processing and practical application

• Prepare surfaces clean, oil-free and dry.
• Apply sealant evenly from the cartridge.
• Tooling and curing under ambient conditions; curing depends on temperature and humidity.

Construction and material choice

Main component: RTV silicone with an acetone-based system. The sealant is black and is offered in 333 ml cartridges as well as other sales units.