Bluesil BLUESIL-PASTE-B431 (100-Gram-Tube)

BLUESIL™ PASTE B 431 Silicone Paste

Overview

BLUESIL™ PASTE B 431 is a polydimethylsiloxane-based silicone paste formulated with inert fillers for lubrication, sealing, electrical insulation, and environmental protection applications. Designed for use in aggressive atmospheres and extreme temperature environments, it provides excellent moisture resistance, electrical insulation properties, and long-term lubrication performance. The paste is particularly suitable for protecting electrical equipment, lubricating mechanical assemblies, and sealing components exposed to cold, humidity, and corrosive conditions.

Key Technical Characteristics

• Product Type: Silicone lubrication and protection paste
• Base Chemistry: Polydimethylsiloxane oil with inert fillers
• Appearance: Translucent to whitish paste
• Specific Gravity at 25°C: 1.1
• Worked Penetration (60 strokes): 360 (1/10 mm)
• Evaporation Loss After 24 Hours at 200°C: <3%
• Thermal Conductivity: 0.25 W/m�K
• Dielectric Strength: >20 kV/mm
• Dielectric Constant (1 kHz): 2.6
• Volume Resistivity: >1 � 10�� ?�cm

Core Performance Benefits

• Excellent low-temperature performance
• Provides reliable lubrication across a wide temperature range
• Protects electrical components from moisture and corrosion
• Hydrophobic formulation resists water ingress
• Chemically inert toward most materials
• Excellent dielectric insulation properties
• Resistant to acidic atmospheres
• Self-levelling characteristics improve surface coverage

Typical Applications

• Electrical terminal box protection
• Connector sealing and moisture protection
• Low-temperature sealing applications
• Formed-in-place gasket protection
• Air conditioning system mechanisms
• Refrigeration equipment lubrication
• Aluminium-to-steel lubrication interfaces
• Aluminium-to-aluminium lubrication applications
• Electrical insulation systems
• Corrosion protection in aggressive environments

Material Engineering & Design Features

BLUESIL™ PASTE B 431 is engineered as a silicone-based protective and lubricating compound that combines excellent dielectric properties with environmental resistance. The hydrophobic formulation helps prevent moisture ingress while maintaining lubrication and electrical insulation performance under demanding operating conditions.

The paste offers strong electrical insulation characteristics, including:

• Dielectric Strength: Greater than 20 kV/mm
• Dielectric Constant: 2.6 at 1 kHz
• Power Factor: 2 � 10?� at 1 kHz
• Volume Resistivity: Greater than 1 � 10�� ?�cm

Its silicone chemistry provides long-term stability while remaining chemically inert toward most metals, plastics, elastomers, and electrical components.

Installation & Handling

• Apply only to clean and dry surfaces
• Degrease surfaces when necessary before application
• Can be applied using:
  • Brush
  • Paint brush
  • Spatula
  • Paste gun
• May be diluted with aliphatic or chlorinated solvents when thinner coatings are required
• Apply evenly across the surface to ensure complete protection and lubrication
• Suitable for both maintenance and assembly operations

Environmental & Compliance Notes

• Store in original packaging
• Maximum recommended storage temperature: 40°C
• Shelf Life: 36 months from date of manufacture
• Available packaging sizes:
  • 0.1 kg
  • 1 kg
  • 25 kg
• Consult Safety Data Sheet (SDS) before use
• Follow local regulations and handling requirements

Key Advantages

• Combines lubrication, sealing, and electrical protection in one product
• Excellent resistance to moisture and corrosive atmospheres
• Outstanding dielectric performance for electrical applications
• Suitable for low-temperature and extreme-environment service
• Hydrophobic and chemically inert formulation
• Provides long-term protection of electrical connectors and terminals
• Compatible with a wide range of industrial and maintenance applications
• Easy application using common maintenance tools