I use the same stuff. Mix 1/2 and 1/2, paste it on all over. Wrap the entire skull in saran wrap and put it in front of a space heater and make a "tent" over and around it with towels so it gets HOT. The saran wrap keeps the bleach from drying out and the heat activates the product. I'll keep it in front of the space heater for at least an hour rotating it once or twice. The bleach will foam up and fill in all the nooks and crannies. After an hour or two in front of the space heater, I will usually leave the product on for another couple hours and then rinse. Only one coat necessary with this method.