I'm thinking of getting into the sealing buis. Never really don't it commercialy. Picked up a 500 gallon tank and trailer. Home made gig, power agitator 5hp motor, and power pump 5hp I think. What I was wondering is how to mix. When to use sand. Striping, how and whats the easiest way. Where to get product, Tar, tips, hoses, wands, etc. The pricing on product Tar. What to charge. Thank you very much in advance Sorry for all of the questions and I hope the newbie didn't make anyone angry. Just looking for info.