Description
Shin-Etsu KE-40RTV Adhesive Sealant is a one-component, room-temperature cure silicone adhesive sealant with UL 94 V-0 flame rating. KE-40RTV silicone is a thixotropic, low-odor, neutral cure paste for electronics, gasketing, and mixed-material sealing work.
KE-40RTV silicone Benefits
- UL 94 V-0 rating supports electronics and equipment builds that document flame performance.
- Neutral cure chemistry helps reduce corrosion risk on sensitive metals and components.
- One-component room-temperature cure removes metering and heat-cure equipment from the process.
- Thixotropic paste holds shape on vertical beads, housings, and gasket paths.
- Unprimed adhesion to metals, plastics, glass, and ceramics helps simplify trials after cleaning.
This grade fits assembly teams that need a durable silicone elastomer without a mixed two-part system. Use it for form-in-place gasketing, electronics sealing, small enclosure work, appliance components, and parts that need a noncorrosive cure profile.
Where KE-40RTV silicone Fits
- Electronic housings and components that call for UL 94 V-0 material.
- Form-in-place gaskets on metal, plastic, glass, or ceramic parts.
- Low-odor sealing work in production or repair cells.
- Noncorrosive silicone bonding around sensitive assemblies.
- Shop builds where room-temperature cure is preferred over oven cure.
Surface Preparation And Use
Clean surfaces before applying the sealant. Remove oils, dust, loose coating, release agents, and moisture that can block adhesion. Test on the actual substrate and coating stack before production because plastics, plating, and cleaning residues can change bond results.
Apply a consistent bead and allow enough cure time before loading the joint. Store material in the original unopened container and check the current data sheet for shelf life guidance. For related grades, browse Chemical Concepts silicone adhesives.
KE-40RTV silicone Technical Details
Shin-Etsu lists KE-40RTV as a low-odor, neutral cure, noncorrosive, single-component thixotropic adhesive that cures at room temperature and adheres unprimed to metals, plastics, glass, and ceramics. Review current information from Shin-Etsu Silicone before releasing production use.
Dispensing And Ordering Help
Confirm bead size, cure time, flame-rating need, and substrate compatibility before replacing another RTV. For help choosing a Shin-Etsu silicone grade, call (800) 220-1966 or email [email protected].







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