Belzona Cold Bonding Solutions

Belzona composite bonding repair materials offer a safe, simple, cost-effect alternative to welding.

Belzona Cold Bonding Solutions

What is cold bonding?

Cold bonding can be described as the joining of two parts or materials without the use of heat. Traditional bonding techniques such as welding use high temperatures generated by an electric arc or the burning of gasses to ‘melt’ the materials so that they fuse into one. Cold bonding is achieved with the use of an adhesive that forms a bond between the two materials. Belzona cold curing composites allow for this bond to be created without the use of heat.

A welcome alternative to welding

Welding is one of the most recognised bonding techniques; however, it also presents several challenges related to personal and environmental safety, downtime and defects that can lead to failures.

Belzona Cold Bonding

Belzona bonding was first used in the late 1950s to attach equipment ID tags. Over the years, materials were enhanced to resist higher pressures and temperatures as well as demonstrate comparably high adhesion and compressive strength. Cold bonding is now considered to be a viable alternative to welding due to several reasons:

  • There is no risk of sparks or electrical hazards and no need for hot work permits.
  • Cold bonding can be used when cutting and welding are restricted due to potentially explosive atmosphere.
  • Fast and simple in-situ application without the need for special equipment makes cold bonding ideal for emergency repairs and challenging application areas, where access is restricted.
  • There is no need for on-site machining, stress relieving and post weld heat treatment.
  • Cold bonding adhesive can conform to irregular shapes and substrates, filling the void between the surfaces. This ensures 100% contact which enhances load bearing capability.
  • The system is solvent free, 100% solid and environmentally friendly

Simple solution for complex situations

The cold bonding application is simple as it uses the Belzona material as an adhesive between two surfaces. This simple technique can solve highly complex issues in different and challenging situations.

An example is the deck renovation plate bonding technology, developed in the early 2000s, which involves the use of multiple plates bonded in place using the Belzona material to create a new deck.

Various other applications, including irregular shimming or chocking, restoring structural integrity and permanently bonding equipment and structures in harsh and challenging environments have been developed and proven through testing and case histories.

Belzona cold bonding has been accepted as a permanent installation and has been used on all Germanisher Lloyd classed vessels since 1984.


Photo gallery:

More information: