As well as corrosion protection, surface coatings act as an interface layer, improving adhesion and maximising the surface contact area with the composite wrap (added at Stage 4 of the Sylmasta Pipe Refurbishment System). Some engineers opt not to use a coating to reduce repair costs.

Before deciding against a surface coating, the user must be satisfied leaks caused by internal corrosion will not occur and the pipe therefore requires no containment. The exterior pipe surface must also be in sufficiently good condition to be wrapped directly with the composite layer.

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 Bandage 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.

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.