AQUAPANEL® Joint Filler – grey is a cement-bound filling material for full-surface skim coating of joints by hand. The joints are filled with AQUAPANEL® Joint Filler – grey and reinforced with AQUAPANEL® Tape (10 cm). Field of Application: As a joint filler, the product is suitable for use with AQUAPANEL® Cement Board Indoor (ceiling) and AQUAPANEL® Cement Board Outdoor (wall and ceiling). [button et_class="" target="_blank" style="small" url="https://geminiuae.com/wp-content/uploads/2022/11/Knauf-Aquapanel-Joint-Filler-Grey-1.pdf" icon="" title="download data sheet"] Preparation of the substrate AQUAPANEL® Cement Board panels must be dry, clean and dust-free and fixed firmly onto a substructure. Mixing Stir 20 kg AQUAPANEL® Joint Filler – grey into approx. 6.8 l of cold, clean water (0.34 l water/kg AQUAPANEL® Joint Filler - grey). We recommend the use of a 600 rpm stirring machine. Use a clean mixing container and mixing tool.