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Clear 2.8 oz squeeze tube of electronic grade silicone adhesive

ASI

ASI ASI388-2.8Clear adhesive 2.8 oz electronic grade silicone

SKU CH-MA09-6GY47 MPN ASI388-2.8Clear

A 2.8 oz tube of clear, electronic-grade silicone sealant that cures at room temperature into a flexible, non-corrosive rubber for protecting sensitive components from -57 °C to 204 °C

  • TypeGlue
  • FeaturesUniversal
  • ColorClear
  • Sizes/Dimensions2.8 oz

Sizes/Dimensions 2.8 oz

  • 2.8 oz
  • 10.2 Oz

Struck-through versions exist but are not stocked here.

  • Non-corrosive cure protects copper, brass and silver components
  • Neutral cure emits no objectionable odours during application
  • One-part RTV silicone cures at room temperature to tough flexible rubber
  • Withstands temperature extremes from -57 °C to +204 °C
  • 8 oz squeeze tube for precise electronic assembly dispensing

Electronic grade silicone for electronics assembly

ASI 388 is a one-part, moisture-curing RTV silicone sealant and adhesive supplied in a 2.8 oz squeeze tube. It is formulated for electrical and electronic production where non-corrosive bonding of copper, brass, silver and similar metals is required. The neutral cure system emits no objectionable odours, making it suitable for confined workspaces with adequate ventilation.

Thermal stability and cure behaviour

The 100% silicone composition remains permanently flexible after curing and withstands temperature extremes from -57 C to +204°C (-70°F to +400°F). It resists ozone, UV and airborne chemicals without degrading. The non-slump consistency stays in place during application and cure, while the neutral chemistry avoids corrosion on sensitive components.

Dielectric protection and environmental sealing

Good dielectric properties, high surface resistivity and resistance to electrical tracking help maintain insulation integrity on circuit assemblies. Water-repellent characteristics protect electrical performance in humid conditions. The tube format suits manual dispensing for prototyping, repair or small-batch production rather than automated high-volume lines.

Highlights

  • Non-corrosive cure protects copper, brass and silver components
  • Neutral cure emits no objectionable odours during application
  • One-part RTV silicone cures at room temperature to tough flexible rubber
  • Withstands temperature extremes from -57 °C to +204 °C
  • 8 oz squeeze tube for precise electronic assembly dispensing

Specifications

BrandASI
ModelASI388-2.8Clear
TypeGlue
FeaturesUniversal
ColorClear
Sizes/Dimensions2.8 oz

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Questions about this item

How do I apply the 2.8 oz squeeze tube of ASI 388 electronic grade silicone and what step do people often miss?

Cut the nozzle, squeeze the one-part RTV onto clean surfaces, and let moisture cure it at room temperature; the step often missed is providing adequate ventilation when using it in large-scale production.

What maintenance or replacement will the cured ASI 388 silicone need later?

The cured silicone forms a permanently flexible rubber that resists ozone, UV, and airborne chemicals, so it typically requires no maintenance or scheduled replacement.

What is the first performance limit of ASI 388 under sustained high-temperature use?

The silicone withstands continuous exposure up to +204 °C (+400 °F); beyond that temperature the material will degrade and lose its sealing and insulating properties.

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