Do you mean bullet lube?
I shoot my own cast bullets and I lube with this
Jake's Products: Ceresin Scarlet
I do have to heat it to flow correctly, but after sized properly and cooled off, it does NOT gum up my dies.
Missouri Bullet Co. has GREAT bullets that do now gum up much at all. They (MBC) also have GREAT service+Lightning Fast shipping--Check them out.
The only cast bullet gum problem that I have had was when using Lee Liquid Alox, when I would tumble lube, and load.--Pretty messy..
If you use "Messy" type of lubed bullets, you can use Dillon Dies for the best operation. The Dillon pistol dies have "Hair Pins" that can be removed to disassemble and clean the seater die, and the crimp die, without loosing your die adjustment...Bill.