ASI Neutral Cure Silicone Guide: Electronic Grade Protection with ASI 388
ASI Neutral Cure Silicone Guide: Electronic Grade Protection with ASI 388
When working with electronic components, sealing and protecting sensitive parts requires more than simply creating a barrier. The material needs to provide reliable protection while remaining flexible and suitable for the environment around electronic assemblies. ASI’s Neutral Cure Silicone category includes ASI 388 Electronic Grade RTV Silicone, a one-part silicone designed specifically for bonding, sealing, encapsulating, and protecting electronic components.
What Is ASI Neutral Cure Silicone?
Neutral cure silicones are moisture-curing silicone materials designed to form a durable, flexible rubber after curing. Compared with acetoxy-cure silicones, neutral cure formulations are particularly useful in applications where compatibility with sensitive components and materials is important.
Within ASI’s Neutral Cure Silicone range, ASI 388 Electronic Grade RTV Silicone is formulated for electronic and electrical applications. It cures into a tough, durable, flexible rubber that can help seal and protect electronic parts and assemblies.
ASI 388 Electronic Grade RTV Silicone
ASI 388 is a one-component, moisture-cure RTV silicone developed for applications where electronic components need to be sealed, bonded, covered, or protected. It can be used for electronic assembly protection as well as a range of industrial applications.
Its application areas include sealing lead wire entries, waterproofing electronics, component mounting, covering sensitive components, sealing electronic assemblies, circuit board protection, electronic encapsulation, and electrical connections. It is also used in telecommunications applications, including coaxial cable connectors.
Once cured, ASI 388 forms a flexible rubber that provides durable protection around the components it is applied to. This makes it suitable for applications where the material needs to remain flexible rather than becoming rigid after curing.
ASI 388 is also UL Recognized, VOC compliant, and meets the requirements of MIL 46106B Type 1, adding documented specifications for applications where these requirements are relevant.
ASI 388 Package Options
At Factoval, ASI 388 is available in two package sizes:
ASI 388 Clear — 2.8 oz
The 2.8 oz squeeze tube provides a compact format for controlled application on smaller electronic assemblies, components, and repair or maintenance work.
ASI 388 Clear — 10.2 oz
The 10.2 oz caulking cartridge provides a larger package for applications requiring more material or repeated use.
These are not different formulations. Both are ASI 388 Electronic Grade Silicone, with the main difference being the package size and dispensing format. ASI lists both 2.8 oz squeeze tubes and 10.2 oz cartridges among the product's standard packaging options.
Where Can ASI 388 Be Used?
ASI 388 is designed around electronic and electrical protection, making it relevant to a variety of applications where components need to be sealed or protected from their surrounding environment.
Common applications include:
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Sealing electronic assemblies
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Protecting circuit boards and sensitive components
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Sealing electrical connections
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Waterproofing electronic components
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Sealing lead wire entries
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Component mounting
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Electronic encapsulation
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Telecommunications equipment and coaxial cable connections
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Electrical and electronic equipment
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Certain general industrial applications
Its flexibility after curing also makes it useful where the sealed assembly may experience movement or vibration during service.
Why Choose ASI 388?
ASI 388 is designed specifically with electronic and electrical applications in mind rather than being a general-purpose silicone selected simply for its sealing ability.
Its one-part formulation is ready to use without mixing, while its moisture-cure chemistry allows it to form a durable, flexible silicone rubber after application. The product is available in clear, white, and black formulations, with clear being one of the standard options offered in the packages available through Factoval.
For electronic assemblies, this combination of flexibility, sealing capability, and application-specific formulation can make ASI 388 a practical choice for protecting components and connections.
Find ASI 388 at Factoval
If you are looking for a neutral cure silicone for electronic sealing, protection, bonding, or encapsulation, ASI 388 Electronic Grade RTV Silicone is a specialized option within the ASI product range.
Factoval offers ASI 388 Clear in both 2.8 oz squeeze tube and 10.2 oz cartridge formats, allowing you to choose the package size that fits your application.
Stay tuned to the Factoval blog for more practical information about ASI products and industrial sealing solutions.