To make sure the wall made of EPS Cement Sandwich Panel stays smooth and crack free for many years, proper joint treatment between panels is a very important step that construction teams need to pay close attention to. The HMLWP model of this panel is manufactured with precise interlock edges that fit together very tightly, but you still need to follow standard joint treatment procedures to get the best long term result. After you finish installing all the HMLWP EPS Cement Sandwich Panel on the wall, first clean all the dust and debris out of the gaps between panels, then fill the gaps completely with special flexible joint filler material.

Before the filler dries completely, press a layer of alkali resistant fiberglass mesh tape along the joint position to cover the whole seam area. This mesh tape provides strong tensile strength that can absorb tiny structural movements of the wall, effectively preventing cracks from forming at the joint position after a long time of usage. After the joint filler is fully cured, you can apply a thin layer of surface putty on the whole wall to make the entire surface completely flat. If you follow these steps correctly, the wall surface will stay smooth and crack free for decades, ready for painting, tiling or any other interior decoration work you want to apply. This simple joint treatment process ensures that your EPS Cement Sandwich Panel wall will maintain perfect appearance and performance for its entire long service life.