Should I Overlap the Mesh?
Fibreglass mesh plays a key role in the microcement system, but it is laid differently from many other cement-based systems.
Because the microcement finish is so thin, how the mesh sits on the surface really matters. The guide below explains more about how to lay the fibreglass mesh alongside microcement.
Many cement-based systems, where mesh is included, encourage the mesh to be overlapped.
Microcement is different, because the microcement is so thin itself, overlapped mesh can leave a ridge that may ghost through in the final finish.
The only exception to this rule is into internal & external corners, particularly where there is a join. In this case, the strength benefits of doubling up the self-adhesive corner tape & fibreglass mesh is top priority.
The self-adhesive corner tape has been specifically designed to avoid ghosting through to the final finish, even when overlapped by the fibreglass mesh on floors & walls.
These guides demonstrate the processes for applying mesh in more detail:
Applying Primer 100 & Fibreglass Mesh
Applying ImpriPox High Performance Primer with Fibreglass Mesh