myMectronic
myMectronic

A Premier B2B Part Search

LOCTITE SI5940100ML silicone sealant

LOCTITE SI 5940 is a single-component, moisture-curing silicone sealant designed for bonding, sealing, and gasket applications. It forms a tough, flexible, waterproof, and oil-resistant silicone rubber bond capable of operating within -50°C to 200°C, with intermittent conditions up to 220°C. Suitable for metal, glass, plastic, fiber, and rubber surfaces, it resists aging, shrinkage, cracking, and discoloration, making it ideal for general sealing, bonding, and space-filling purposes. Cure time is approximately 14 minutes to skin, with a tack-free surface achieved in 20 minutes, ensuring durability and resistance in demanding environments.

LOCTITE SI5940100ML silicone sealant Specifications:

  • Technology: Silicone
  • Chemical Type: Acetoxy silicone
  • Appearance (uncured): Black paste
  • Components: One component - no mixing needed
  • Cure: Room temperature vulcanizing (RTV)
  • Operating temperature range: -50°C to 200°C, intermittent up to 220°C
  • Skin over time: 14 minutes
  • Tack free time: 20 minutes
  • Shore Hardness: 22, ISO 868, Durometer A
  • Elongation at break: 500%
  • Tensile Strength: 1.8 N/mm² (260 psi)
  • Specific Gravity: 1.02 at 25°C
  • Storage: 8°C to 21°C, avoid extremes
  • Curing: Exposure to moisture, forms flexible waterproof bonds
  • Adhesion: Metal, glass, non-oily wood, silicone, ceramic, fibers, painted surfaces
  • Application: Bonding, sealing, gasket formation
  • Shelf life: Typically 12 months in unopened container

Buy the LOCTITE Series SI 5940 Silicone Sealant: SI5940100ML

Purchase LOCTITE SI 5940 silicone sealant online today for reliable bonding, sealing, and gasketing in industrial and maintenance tasks. This versatile, single-component RTV silicone cures upon exposure to moisture, forming a tough, flexible, waterproof, and oil-resistant silicone rubber bond capable of operating between -50°C and 200°C. It adheres well to metal, glass, plastic, and rubber surfaces, making it suitable for a wide range of applications, including sealing tanks, automotive, electronic assemblies, and industrial equipment. Easy to apply, cure, and wipe excess with solvents—perfect for professionals needing durable, high-performance sealants with excellent aging and crack resistance.

Get LOCTITE SI 5940ML today—built for durability, flexibility, and resistance in demanding sealing and bonding applications.

Frequently Asked Questions

Where can I buy LOCTITE SI5940100ML?

You can click on the BUY or RFQ button to purchase SI5940100ML from an authorized LOCTITE distributor.

How do I troubleshoot issues or seek technical support for part SI5940100ML?

You can download the SI5940100ML datasheet or visit the LOCTITE website for support.

Who is the manufacturer of SI5940100ML?

LOCTITE

Part List

Browse and search other parts, locate datasheets and stock