“Plumb” silver solder?

Are there any silver solders that are .925 silver? Most seem to be around 60-70% silver, if these are used are there any hallmarking concerns? The tolerance is 6 parts per thousand in Canada

Hi,

Plumb solder will match the quality of the metal…

ie:
plumb solder is .925 fine silver
plumb 18K gold solder is .750 gold

Julie