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Henkel Adhesive Technologies

Henkel Adhesive Technologies

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Gasketing sealants

LOCTITE® SI 5990

Copper-colored, silicone sealant for large gap fill

A 1-part, copper-colored, thixotropic, non-corrosive gasketing compound for applications involving large gaps. Also works for electrical insulating applications.

All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.

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Information

LOCTITE® SI 5690 is a non-corrosive, oil-resistant, moisture-curing gasketing sealant, ideal for copper and applications involving large gaps. It can also be used for electrical insulating applications and is compatible with various surfaces, including metals and plastics. LOCTITE SI 5690 cures when exposed to moisture in the air to form a rigid rubber gasket. Its thixotropic nature makes it easy to apply and reduces sealant migration after application. LOCTITE® SI 5690 is label-free and offers excellent adhesive strength, even at temperatures up to 350°C (662°F).

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