Most low-tracking cat litters are made from clay (including bentonite) or silica gel crystals. Clay formulas rely on larger or heavier granules to reduce tracking, while silica crystal litters use absorbent crystals that resist clinging to paws and fur.
Lower dust levels reduce tracking because fewer fine particles stick to paws and spread outside the box. Many products advertise ‘‘low dust’’ or claims like 99.9% dust-free alongside their low-tracking performance.
Many low-tracking formulas are labeled for multi-cat use and combine reduced tracking with stronger odor control and low dust to handle higher use levels in multi-cat homes.
Silica crystal litters are typically described as low-tracking, low-dust, and ultra-absorbent crystals that ‘‘do not cling to fur or paws.’’ Clay low-tracking options usually emphasize larger or medium-grain granules, clumping performance, and low- or near-zero dust to minimize tracking.
Formulas intended to avoid sticking use silica crystals or heavier, non-tracking granules and larger particles so litter is less likely to cling to fur or paws. Low-dust and specially shaped granules are also described as helping reduce transfer onto long-haired cats.