Chemicial threadlocking precote® and Scotchgrip 3M®
The preliminary coatings used in bonding contain micro- encapsulated, adhesive components in the coating to be applied. After drying, a non-sticky, dry film with product- specific coloration is then formed, which is immediately ready to use. The screw threads thus threated, develops the required protection and sealing characteristics after the pre-applied screw is screwed into the nut or specific component.

A differentiation is made between reactive and non- reactive adhesives.

Reactive adhesives (precote® 30, 80, 85, Scotchgrip 3M®) consist of 2 components. Acrylate and epoxy base for threadlocking and sealing.

Non-reactive adhesives (precote® 4, 5, 6, 9, 10-1, 19-2) are on an acrylate and polyamide base for threadlocking and sealing, too.

  • Reactive adhesives

    While screwing, the microencapsulated capsules break apart, the adhesive harden and it generates the screw- thread-securing 2-component connection with high adhesive force. As a result of this, the screw threads bond to each other and thus form reliable protection and sealing characteristics.

    Non-reactive adhesives

    A thin sealing film is applied on a specified area of the bolt surface. The coating is non-toxic, immediately usable and safe to handle. After screwing into the internal thread, a compressive force develops which generates a sealing effect against liquids, oils and gases.

  •       Temperature resistance -60°C to +200°C
          High breakaway torques
          Low screw-in torque
          Fast hardening
          Ease of identification by means of different colors
          Chemical resistance against most oils and solvents
          Replaces liquid adhesives and a mechanical protection

  • The installation of the pre-applied screws can be implemented mechanically or manually with traditional tools. By means of a fully-automated supply system, productivity is increased.

    The component parts to be coated should be oil-free and grease-free as far as possible. It is not required as mandatory, however, torque values are reduced as a result.
Data Protection