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Three Bond · Sealant

Three Bond 1209

Three Bond 1209 – High-temperature RTV silicone liquid gasket, 100 g Tube; -60 °C to 250 °C continuous, up to 300 °C briefly, designed for electrical applications.

2 versions black

Each version is an article with its own page – your selection opens it.

Three Bond 1209

Fig. 01 — Product view

Three Bond 1209 – A20024 High-Temperature RTV Silicone Liquid Gasket Overview

The Three Bond 1209 is a high-temperature RTV silicone liquid gasket, available as a 100 g Tube. It is specifically designed for flanges and bolts in electrical applications and impresses with high pressure and chemical resistance as well as fast skin formation.

Key values at a glance: Temperature range (continuous) -60 °C to 250 °C, short-term up to 300 °C; Viscosity 140 Pa·s, Density 1.05 g/cm³, Shore-D hardness 37, Elongation 300 %, Tensile strength 2.4 MPa; Surface drying time 10 minutes; Shelf life 12 months.

Main component: RTV silicone (acetone-based system). Color: Black.

Suitable for flanges & bolts in electrical applications

This RTV silicone liquid sealant is especially suited where temperature fluctuations, chemical exposure and sealing requirements are high. The combination of heat and chemical resistance provides reliable connections in sensitive electronics applications.

Technical data of Three Bond 1209

  • Temperature range (continuous): -60 °C to 250 °C
  • Temperature range (short-term): up to 300 °C
  • Viscosity: 140 Pa·s
  • Density: 1.05 g/cm³
  • Shore-D hardness: 37
  • Elongation: 300 %
  • Tensile strength: 2.4 MPa
  • Surface drying time: 10 minutes
  • Shelf life: 12 months
  • Color: Black
  • Main component: RTV silicone (acetone-based system)

Material & composition of the sealant

The sealant is based on RTV silicone and is supplied as a liquid gasket in black. This material choice provides robust sealing performance under temperature and chemical exposure and is particularly suitable for assembly areas in electronics.

2 versions of Three Bond 1209 with item number, features and price
Version Item no. Price Inquiry
Three Bond 1209 - Hochtemperatur-RTV-Silikon-Flüssigdichtung - 100 g Tube A20024 Price on request
Three Bond 1209 - Hochtemperatur-RTV-Silikon-Flüssigdichtung - 330 ml Kartusche A20025 Price on request
Hauptkomponente RTV silicone (acetone system)
Colour black
Elongation (%) 300
Tensile strength (MPa) 2.4
Shelf life (months) 12
Shore hardness D 37
Surface drying (min) 10
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