sorry flyinmysoup but I don't do stuff like this anymore, unless if it happens to my own guitars! hahaha...
All pickups are wax potted, I can't believe it if anyone can say otherwise of even cheap China made ones. Its whether they're WELL potted or not, thats the question we must ask. Some are epoxy potted, like those EMG, Bartolinis (I THINK!).
The reason why they're potted is to prevent the wire coils in the pickup from vibrating, therefore causing squeels and crazy feedback. If you have any UNPOTTED pickups, I'm pretty sure the feedback will be crazy with a TS9 at booster setting.
also just to add, in a double boiler or Bain Marie(I just like to say this cos it makes me sound very intelligent... try it! BAIN MARIE!), if you use water in the pot, the highest temperature the wax will be 100 deg C which is the boiling point of the water. No need for any thermometer.
Oh and make sure that you have permission from the one in charge of the kitchen and be careful. Molten wax is extremely flammable but FUN.