Product Introduction
Momentive SNAPSIL™ RTV5242 is an electronic-grade, one-component, high-strength silicone sealant designed for fast curing and excellent adhesion, even in moist conditions. Its neutral-cure, low-odor formulation is ideal for sensitive substrates and electrical components. With superior hydrolytic stability, fast green strength buildup, and strong environmental resistance, RTV5242 provides long-lasting performance in demanding industrial, automotive, and electronic assembly applications.
SNAPSIL™ RTV5242 Features
- One-component, fast-curing neutral-cure silicone
- Cures up to four times faster than traditional alkoxy silicones
- High adhesion strength with excellent moisture resistance
- Primerless adhesion to metals, plastics, and painted surfaces
- Non-corrosive cure suitable for electronic assemblies
- Superior hydrolytic stability after extended water exposure
- Outstanding electrical insulation properties
- Resistant to chemicals, ozone, and weathering
- UL recognized component – File E-36952
- Maintains flexibility from -75°F to 400°F
SNAPSIL™ RTV5242 Applications
- Aerospace, automotive, appliance, and electronic assemblies
- Sealing and bonding exposed to moisture or challenging environments
- Electrical insulation, semiconductor protection, and circuitry sealing
- Multi-substrate assembly requiring strong primerless adhesion
- High-throughput manufacturing requiring rapid handling strength
- General industrial applications needing durable, flexible silicone sealing
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 Options | White (RTV5242), Black (RTV5243), Gray (RTV5249) |
| Hardness (Shore A) | 40 |
| Tensile Strength | 2.2 MPa (320 psi) |
| Elongation | 425% |
| Specific Gravity | 1.5 |
| Application Rate | 300 g/min |
| Sag/Slump | 2.5 mm (0.1 in) |
| Tack-Free Time | 45 min |
| Tooling / Skin-Over Time | 10 min |
| Cure Time (3.2 mm depth) | 6 hours |
| Dielectric Strength | 20 kV/mm (500 V/mil) |
| Dielectric Constant @ 60 Hz | 2.8 |
| Dissipation Factor @ 60 Hz | 0.001 |
| Volume Resistivity | 3×10¹⁵ ohm·cm |
| Temperature Range | -75 to 400 °F |
