Fiberglass wall mesh functions well. On the one hand, it can effectively increase the tensile strength of the protective layer, on the other hand, because the stress can be effectively dispersed, it can disperse original wider cracks into smaller ones, thus reaching the effect of anti-crack. Surface coating materials and coating amount has more important significance on alkali resistance of fiberglass mesh while glass?fiber has decisive significance on the long-term alkali resistance.
Before paving, the wall should be cleaned up, potholes should be patched, an then brush latex and pave meshes on the wall, meshes should be paved smoothly, the interval overlap should be at least 50MM. when the wall is wholly dried up, then move on with next step.
Covering fiberglass mesh and adding polymer modification into the mortar are to prevent mortar and finish coat from cracking. The case that the wall cracks itself isn't likely to happen, so covering it with glass?fiber mesh or polymer mortar can't prevent the cracks of masnory or concrete wall generated itself.
