Hi Bill:

A few years back I went through all of my shut off valves and did just what you are doing now; rebuilding the d ones worthy ofthe effort. I lapped them with valve compound or toothpaste and used the Brattons kit to reassemble them. I gave some away or sold them, but the two that I kept and used for myself have not leaked. Making the assumption that the Brattons kit is the same now as it was several years ago, I would not expect you to have any leaking issues using that kit.

A400 Guy