Sealant For A Leaky Centerline Wheel ?

I had to do one. Most of the old silicone came out in one long piece. Used a wire brush to clean the area and finished with some lacquer thinner. I used a regular tube of clear silicone in the caulk gun. I put a thin bead on and tried to force it down with my finger first. Then load it up and smooth it out like the original was. I let it dry for a couple days, worked good.