Skip to Content
Henkel Adhesive Technologies

Henkel Adhesive Technologies

Gasketing sealants


Blue, general purpose RTV silicone sealant with superior oil resistance

General purpose, 1-part silicone adhesive sealant, which cures at room temperature to form a tough yet flexible rubber gasket. This form-in-place sealant can be used for gasket replacement and gasket dressing.

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

Part no. (SKU/IDH) 135504
LOCTITE® SI 587, 70 ml Tube

Size Please make your selection 70 ml

Packaging type Please make your selection Tube



LOCTITE® SI 587 is a metallic blue, oxime silicone paste used for gasketing and sealing applications in plant maintenance and various sized OEMs. As a form-in-place gasket/sealant, it has been designed to provide outstanding sealing performance against industrial and automotive engine oils. Its thixotropic nature reduces the migration of liquid product after application to the substrate - allowing for reliable quality control e.g. in dispensing automation as well as manual applications. This product is typically used in demanding applications up to 260°C (500°F).


Gasketing,Sealing / dressings for existing gaskets



Cure type:

Room temperature vulcanization (RTV) cure

Number of components:

1 part

Physical form:


Specific gravity, @ 25.0 °C:


Storage temperature:

8.0 °C - 21.0 °C

You might also need

  • LOCTITE SF 790 - 18 oz aerosol (IDH 135544)

    General industrial cleaners

    LOCTITE® SF 790


    Gasket remover and paint stripper

  • LOCTITE SF 7070, ODC-Free Cleaner - 15oz Aerosol can (IDH 231562)

    General industrial cleaners

    LOCTITE® SF 7070


    Non-CFC, general purpose cleaner for plastic parts​

Request a consultation

Unplanned downtime or lower plant productivity can prevent you from achieving the manufacturing excellence that you are looking for. Consult with our experts to find ways to make your machine more reliable and reduce unplanned downtime to save costs.