How does the selection of craft paper affect the grinding efficiency and durability of sandpaper?

Grinding efficiency
Abrasive adhesion: The surface features and fiber structure of the craft paper can affect how well the grinding particles stick. Paper with a rough surface and tight fiber structure can hold the abrasive more firmly, stop it from coming off during grinding, and so improve the grinding efficiency.
Water absorption: For water sandpaper, the water absorption of the craft paper is really important. Paper that absorbs water well can keep the sandpaper wet, prevent the abrasive from getting clogged, make sure the abrasive stays sharp, and therefore increase the grinding efficiency.
Durability
Paper strength: The strength of the craft paper directly influences the durability of the sandpaper. Strong paper can handle more pressure and friction, is less likely to break, and this extends how long the sandpaper can be used.
Tear resistance: When grinding, the sandpaper might get pulled in all kinds of directions. Craft paper with good tear resistance can lower the risk of the sandpaper getting damaged and make it more durable.
Fold resistance: For sandpaper that needs to be folded or bent over and over again, fold resistance is an important thing to think about. Craft paper with good fold resistance can reduce damage caused by folding or bending, and further make the sandpaper more durable.