Originally Posted by Model-P
I thought the question was about using pure bee's wax.
The OP asked about "pure bee's wax or tallow or some mixture of the two?"
In #4, mykeal
opined that it's too stiff to use as a chamber seal. It seems we all concur and the thread evolved into using other mixtures. Obviously, some folks use concoctions including toilet donut material (substitute "un-pure" beeswax).