400 degress centigrades for one hour with the door open --the oxigen from the air will transform the hidrocarbons in co2---the color of the substrate will change and them the procees is finished.
I prefer to cat juggle, like Steve Martin! :lol: Just kidding Donald, Its catalytic converter material, the 'honeycomb" in the cans that look like mufflers in the exhaust system of a car, they help burn or convert off bad gasses...