Is MULTI-SEAL tire sealant environmentally hazardous?
Most MULTI-SEAL products contain ethylene glycol. This makes them similar to automobile antifreeze, which is generally considered safe. However, environmental laws vary from state to state, so there is no single answer. Check the laws in your state. Generally speaking, even the largest tires would not contain enough MULTI-SEAL to be considered hazardous. For the more environmentally sensitive areas, we make environmental versions of our popular HEAVY DUTY, ARMOR SEAL and HYDRO-SEAL products. These products are made with propylene glycol. This is food grade antifreeze. Otherwise, they are identical to the standard versions of these sealants. For spills, we recommend cleanup using absorbent granules or similar material, followed by flushing with water. Material Safety Data Sheets are available for all MULTI-SEAL products.
