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Henkel Adhesive Technologies

Henkel Adhesive Technologies

Gasketing sealants


Black, general purpose RTV silicone sealant

General purpose, 1-part silicone adhesive sealant, which cures at room temperature to form a tough yet flexible rubber seal.

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

Part no. (SKU/IDH) 193996
LOCTITE® SI 593, 80 ml Tube

Size Please make your selection 80 ml

Packaging type Please make your selection Tube



LOCTITE® SI 593 is a black, general purpose, 1-part RTV (room temperature vulcanizing) acetoxy silicone adhesive and sealant, which moisture cures at room temperature to form a tough rubber seal. It will not slump in overhead or vertical applications and has been formulated to withstand extreme temperature cycling, UV light, and ozone. Please note this product cannot be painted.



Chemical basis / base:

Acetoxy silicone



Cure type:

Room temperature vulcanization (RTV) cure

Extrusion rate:

≥ 250.0 g/min.

Number of components:

1 part

Specific gravity, @ 25.0 °C:


Storage temperature:

8.0 °C - 21.0 °C

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