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Prysmian BICON BX1-225 Electrical Joint Compound (U7086401) , like all BICON Inhibitor compounds, is designed to prevent galvanic corrosion and to enhance connections in electrical joints. It is especially effective when used on copper to aluminium and aluminium to aluminium connections.

In general, BICON Inhibitor compounds consist of a liquid base vehicle in which zinc particles are suspended. The base vehicle is a natural or synthetic grease which prevents water and other contaminants from influencing the connection and prevents the formation of surface oxides. The zinc particles help to break down existing oxide on the conducting surfaces when those surfaces are brought together under pressure. These particles form electrical bridges which improve the connection.

Prysmian BICON BX1-225 Electrical Joint Compound (U7086401) has a natural (petroleum) grease base. It is recommended for all bare outdoor applications because of its excellent weathering properties. This petroleum base reacts chemically with rubber insulation and to a lesser degree with polyethylene insulation. The result is swelling and a reduction in the tensile characteristics of the insulation material. If reasonable care is taken to remove any excess from a connection, the resulting effect on insulating material is negligible.

Our experience shows that BX1-225 Inhibitor Compound enhances the performance of electrical connections, particularly in aluminium to aluminium and aluminium to copper joints. The compounds, in bulk, are highly resistive, however, when applied as a thin film, with the aid of zinc particles, they decrease the contact resistance of a joint.

Where is BX1-225 Electrical Joint Compound (U7086401) used?

  • Should be used in all aluminium to aluminium and aluminium to copper joints. The contact
    surfaces of the elements to be joined should be thoroughly scratch brushed. The BICON BX1-225 should
    be liberally applied and any excess removed after securing the joint.
  • Should be used for all applications where insulation will not be applied to the joint, such
    as substations and switch-gears.

Chemical and physical properties:

  • Components: Aluminium Stearate Soap Mineral Oil, Zinc Dust.
  • Penetration: 290.
  • Dropping Point (min): 230˚F (110˚C).
  • Viscosity at 100˚F (CS): 305.
  • Flash Point (min): 375˚F (190˚C).


(Category ‘A’)
Petroleum based greases, that is, petroleum oils thickened by soaps or other agents. Certain other additives may be incorporated.

Lithium base soap
Mineral oil
Zinc dust


Prysmian Bicon BX1 is supplied in 225g Electrical Joint Compound squeeze tube or 3kg Bucket Electrical Joint Compound.

*Technical Data subject to change without notice.

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About Us
Firstly, thank you for visiting Tidi-Cable Site Supplies. As a family run business, we appreciate each and every visitor to our site and customer. We're based in Rochester, Kent and are proud to have been supplying the UK's largest contractors across the UK since 2012.

Our mission is to supply the construction industry with excellent quality site and safety supplies at great prices. We hold huge stocks of all products and have a strong supply network, so if the product you require isn't in stock, you can be sure the we'll be able to source it for you.

Also, if you have any questions about any of our products, please don't hesitate to get in touch on: 01634 766 186 or info@tidi-cable.com.

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