I got the mix to work to this grade in about three days.... But it really really stinks !
You need to remember that my budget is minuscule, I cannot throw wads of money at it like others can, so instead of spending hundreds in blasting (which won't us seize bolts anyway) I spend £30 on molasses which lasts me six months. It's top notch on seized track too, as Shaun says you cannot be in a rush when using it though.
Don't waste your money blasting track........ It just comes back clean and seized
Molasses Rock hahahahahahahaha