I don't have a web site because when we did NO one from the industrial world ever used it. There have been locations who used Kroil oil and ditched it for us and places who tried us and didn't change and I can't explain why. This is a try it yourself and see what happens problem.
There are tricks to using most penetrants and one is to keep the part wet so that the liquid has time to wick. Sometime that requires wetting rags and putting them on the head/nut or both and wrapping with plastic for several days before hitting the bolt ends with hammers and then torque. Innovative thinking is required sometime.
