It appears to be mostly silica based, as Homer stated, just rinse well first.
Not all PFS is the same. There are many brands sold around the world, and not all of it is white.
Ditto to hardware store brands, they also vary from location to location.
Neither. Have PFS now and am switching on my new tank. It is impossible to keep clean, like a white car. Everything shows on it. It looks good for about 12 hours after you clean and then meh. JMHO though. Going back to BDBS.
Not all PFS is the same. There are many brands sold around the world, and not all of it is white.
Ditto to hardware store brands, they also vary from location to location.






