Are there any health (carcinogenic) effects associated with these products?

Our Flagstone Rubber Pavers don't have any carcinogenic effects associated with it, but it does fall under the Prop 65 rules set forth in CA for a product that has substances that they deem unsafe. Even though these tiles have this designation, they would be in the same playing field as toothpaste, deodorant, and many other products that people use on a daily basis in California. Our Flagstone Rubber Pavers are tested on a regular basis and have been deemed safe. If you would like a copy of the MSDS for this product, please feel free to reach out to one of our Flooring Heroes, and they would be more than happy to assist you with a copy of it.