Product Introduction
Momentive IS 5128 E is a one-component, neutral-cure RTV adhesive/sealant engineered for fast curing and excellent performance across metal and plastic substrates. It forms an elastic, flexible silicone rubber with strong dielectric properties and is non-corrosive even to sensitive metals like copper and copper alloys. Featuring a thixotropic paste consistency and excellent primerless adhesion to polycarbonate and other plastics, IS 5128 E is ideal for demanding electronic sealing, bonding, and insulation applications.
Momentive IS 5128 E Features
- Non-corrosive formulation suitable for metals including copper
- Fast room-temperature curing
- Neutral, low-odor, non-acidic cure with no irritating vapors
- Excellent primerless adhesion to plastics such as polycarbonate
- High dielectric strength and stable electrical properties
- Thixotropic paste consistency for controlled application
- Wide service temperature range from -50°C to +150°C
Momentive IS 5128 E Applications
- Sealing and bonding of high-performance plastics
- Electrical and electronic component insulation
- Encapsulation and protective coating for electronic assemblies
- General industrial sealing requiring non-corrosive RTV silicone
- Applications needing strong dielectric insulation performance
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
|---|---|
| Color | Translucent |
| Density | 1.03 g/cm³ |
| Tack Free Time | 10 minutes |
| Consistency | Paste |
| Application Rate | 250 g/min (6 mm orifice, 2 bar) |
| Hardness (Shore A) | 20 |
| Modulus @ 100% | 0.35 MPa |
| Tensile Strength | 1.7 MPa |
| Elongation | 550% |
| Dielectric Strength | 25 kV/mm |
| Dielectric Constant (50 Hz) | 2.8 |
| Dissipation Factor (50 Hz) | 0.005 |
| Volume Resistivity | 1×10¹⁵ ohm·cm |
