A surface coating is applied to a pipe for strengthening and protection against corrosion, chemical attack, and other environmental factors.

An epoxy coating or paste prevents both external and internal corrosion, providing an impermeable membrane against future breaches. Surface coatings offer a chemically resistant layer to pipes in aggressive environments.

A coating also increase adhesion and maximises the surface contact area with the composite wrap, added at stage 4 of the Sylmasta Pipe Repair System, further strengthening the application.

Liquid Metal is a brush-applied epoxy coating with a 90 minute gel time. As well as pipe protection, it can be used in conjunction with SylWrap HD as a load-transfer layer providing PCC-2 compliant repairs. The composite wrap is applied once Liquid Metal has gelled but remains tacky.

Titanium Supergrade HT Epoxy Paste is used in extreme temperature or more complex applications where a longer cure time is desired. It is spread thinly over pipes using a hand tool. The composite wrap is applied to Titanium Supergrade immediately.

The interface layer is always recommended but sometimes is not used due to reasons of cost, such as where the user is satisfied leaks caused by internal corrosion will not occur and the exterior pipe surface is in sufficiently good condition to be wrapped directly over with the composite layer.

Neither Liquid Metal nor Titanium Supergrade make effective underwater repairs. Sylmasta instead recommend the use of SylWrap CR for providing corrosion protection in marine environments. SylWrap CR comes with additional corrosion inhibitors and is applied directly to pipes underwater.