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Silopren™ LSR 2740
Silopren™ LSR 2740 is a 40A two-component self-bonding liquid silicone rubber that requires primer-less adhesion and high-temperature stability for many end-use
Fulfilled By ChemPoint
- Manufacturer: Momentive
- Product Line: Momentive Silicone Elastomers
- Product: Liquid Silicone Rubber
- Industries: Building & Construction | Elastomers | Metal Processing & Fabrication | Plastics | Silicones
- Authorized Countries: Canada | United States
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Overview
Silopren™ LSR 2740 is a general-purpose self-bonding injection molding silicone rubber grade that offers adhesion to various metals and engineered plastics without using a primer and adhesion with the mold. Adequate bond strength is reached after a short post-cure or by longer storage at room temperature. The self-bonding property of two-component Silopren™ LSR 2740 makes it a cost-effective solution for multi-component injection molding or insert molding.
Specifications
Density: 1.12 g/cm³
Hardness/Durometer, Shore A: 40
Tensile strength, N/mm²: 9.5
Elongation at break, %: 700
Tear strength, N/mm: 15
Compression set (22 h at 120°C), %: 25
Primary Chemistry: Liquid silicone rubber
Features & Benefits
Primer-less adhesion to many substrates, such as stainless steel, aluminum, nylon, and co-polyesters
No special mold treatment required
No adhesion to the mold
High-temperature stability
Flexibility at lower temperatures
Good dielectric and mechanical properties
Easy to pigment with color pastes
Problems Solved
Requiring a primer for the adhesion of liquid silicone to metals and difficult substrates
Liquid silicone residuals on the mold after processing
Flexibility and pigmentation issues in liquid silicone resins, especially at low temperatures
Applications
Overmolding
Sealing elements
Automotive connectors
Membranes
Vibration dampening elements
Machinery
Consumer goods
Related Chemistries
Silicones
Related End Markets
Elastomers
Metal Processing & Fabrication
Plastics
Silicones
Related Functions
Related Properties
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