In the formulation used for the brake pads for different purposes, the proportion of the binder is not same.
For large drum brake pads for heavy trucks, the ratio of general binders is between 16% and 24%.
For the drum brake pads of light vehicles, the general adhesives account for the ratio is between 10% and 14%;
The ratio of the binder to the disc brake pads is between 8‰ and 10%.