[lfsracing]

Well I never tried but I have seen others that did it without problems. Being in the TB building business (I make billet TB's) I know he isn't talking about seals but actually the TB bearings that the shaft moves on. If it was the seals like the TPS IAC sensor seals then those will melt. I don't know how well the bearings will hold up but they are plastic and also metal at least our bearings are metal outside and then plastic in the center. I haven't tried to coat them but I would remove the shaft etc from it and tape off the bearing area for sure. I have a old stock TB here that I am going to take apart the shaft and spring stuff and coat it. It's already bead blasted and cleaned up I just have to remove the butterfly plate and screws that hold the plate and remove the shaft. Just be careful alot of the screws for the plate will break when you try to remove them I know that one stock TB I took apart they both broke because the way the factory kinks them so they don't rattle loose. If all goes well I will post up. But for sure make him remove the plate screws that way when he messes them up it doesn't end up costing you and he can have them drilled out and rethreaded which is what I did when I broke them.
Lorenzo