Renaissance Wax or Flitz Wax

Renaissance has by far the better reputation and is the go-to for museums to preserve metal and leather.

Flitz may well be very good but most museums and collectors tend to use what is known to be the best, and Renaissance is the standard product for most professionals.
Renaissance is well known not to contain any chemicals or additives that might degrade valuable items, which is why it's the standard for most museums and big collectors.

I use Renaissance Wax to protect the scrimshaw on my knife handles and on some pistol grips. Works great. I would not use any other wax because the scrimshaw (unlike carving or metal engraving) is not very deep into the handle material and can be worn off with abrasives.

- - Buckspen

I Googled Flitz wax because I had not seen it before.
It seems to contain similar ingredients to Ren Wax.
It says "non abrasive"

Renaissance Wax

cloverleaf said:

I Googled Flitz wax because I had not seen it before.
It seems to contain similar ingredients to Ren Wax.
It says "non abrasive"

Click to expand...

Similar ingredients yes, but not the same and that is the key. Ren Wax is a microcrystalline wax from petroleum as opposed to plant based wax which has both contaminants and breaks down over time causing discoloration. below is a link explaining the differences.

https://en.wikipedia.org/wiki/Microcrystalline_wax

Regards