Henkel Adhesive Technologies

Henkel Adhesive Technologies

Flexible sealants


A 1-part, clear industrial silicone sealant/adhesive with flexibility that offers enhanced load bearing and shock absorbing characteristics.

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

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LOCTITE® SI 5366 is a 1-part, clear industrial acetoxy silicone sealant/adhesive, designed specifically to ensure perfect sealing as well as bonding and protection. Typical applications include sealing side windows in trains, sealing heat sources (ovens, heat exchangers, steam circuits, water heaters), providing protection/insulation of electrical boxes, bonding of HCR silicones and in general maintenance.



Elongation, at break:

530.0 %

Shear strength, Aluminum (grit blasted):

2.0 N/mm²

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