Surface Coating for Pipe Protection

Stage 3 of the SylWrap Pipe Refurbishment System

Brushable epoxy surface coatings painted onto pipework provide protection against corrosion, wear, abrasion, chemicals and other environmental factors at Stage 3 of the SylWrap Pipe Refurbishment System.

Coating a pipe with epoxy creates a chemically resistant outer layer shielding the original substrate from attack. This outer layer also acts as an impermeable membrane of containment if internal corrosion breaches the original pipe wall, preventing pipe content from leaking out.

In addition, applying a surface coating increases adhesion and maximises the surface contact area with the composite wrap (added at Stage 4 of the SylWrap Pipe Refurbishment System), further strengthening repairs.

Liquid Metal is a metal-filled epoxy coating with high corrosion resistance. As well as pipe protection, it makes PCC-2 compliant repairs when used as a load-transfer layer in conjunction with SylWrap HD Pipe Repair Bandage.

Ceramic Brushable is a ceramic-filled epoxy coating reinforced with silicon carbide. It sets smoother and harder than Liquid Metal, offering greater protection for pipes, pumps and tanks in more abrasive environments.

Sylmasta always recommend a surface coating as part of the SPRS for enhanced external protection, containment of future leaks and to act as an interface layer.

Some engineers opt not to use a surface coating to reduce costs. If skipping this stage, users must be satisfied internal corrosion will not breach the original pipe wall and cause the line to leak.

The exterior pipe surface must also be in good enough condition with no pitting or defects for direct application of the composite wrap without the interface layer.