I had to have my 1911 Brunswick jumbo frame 10x5 table moved because of water in my basement.
So the the guys that I have doing the job,told me that the 3 1.5" slate + 1/2" backer board had beeswax used for the joints.
But this installer said he uses bondo
He said he scores the bondo so if the table is ever torn down again, the bondo will break along the score and not damage the rock.
I need some good advice here. I have started reading all these hack stories and I don't want any part of it....this has already been a education. Thanks

So the the guys that I have doing the job,told me that the 3 1.5" slate + 1/2" backer board had beeswax used for the joints.
But this installer said he uses bondo

I need some good advice here. I have started reading all these hack stories and I don't want any part of it....this has already been a education. Thanks