Three Bond 1377B - Anaerobe Klebedichtung - Hohe Festigkeit - 250 g Flasche

Three Bond A20083 – Overview of the Anaerobic Sealant

The Three Bond 1377B anaerobic sealant is a highly viscous Methacrylate-sealant compound that is particularly suitable for large-scale fits. As a product of anaerobic adhesives, it cures in the absence of air and forms a durable seal with high strength.

It fills irregularities up to about 0.5 mm and remains stable under high pressures and vibrations. Available in a 250 g bottle, it is suitable for series production and applications with generous clearance widths.

The color is green, which aids dosing and inspection. The main component is Methacrylate; the temperature range spans from -60 to 150 °C, which allows it to withstand changing operating conditions. The storage life is 9 months.

Applications of Three Bond A20083

Suitable for large-tolerance mating surfaces in housings, flanges, and similar sealing connections where a durable seal against pressure, lubricants, or moisture is required. The anaerobic polymerization creates a permanent barrier that does not loosen even under vibrations. The gap tolerance 0.01–0.05 mm enables precise fit despite small clearance.

Dimensions and specifications of Three Bond A20083

• Contents 250 g bottle
• Color Green
• Main component Methacrylate
• Viscosity (25 °C) 2000 mPa·s
• Density (25 °C) 1.10 g/cm³
• Temperature range -60 to 150 °C
• Storage life 9 months
• Compressive strength 30 MPa
• Functional strength 1.5 h
• Optimal gap tolerance 0.01–0.05 mm

Key features of Three Bond 1377B

From the methacrylate base results in a strong, elastic seal that reliably bridges irregularities up to 0.5 mm. The seal resists pressure loads and vibrations, while the functional strength is about 1.5 h. The temperature resistance ranges from -60 to 150 °C.

Processing and practical usage with Three Bond A20083

1. Prepare surfaces: clean, dry and grease-free.
2. Apply a thin, even layer in the gap and assemble the components.
3. Upon contact with air, the sealant polymerizes anaerobically. After assembly you achieve approx. 1.5 h of functional strength.

Structure and material selection

• Main component Methacrylate
• Color Green