General Information :
Abrasive cleaners generally use some kind grit to boost their cleaning ability, along with detergents, acids, alkalis and other compounds. Some are in powder form while others suspend the abrasive in liquid. The quartz or silica that constitutes the grit will easily scratch and/or damage softer surfaces such as laminate, fiberglass, stainless steel, etc. Even on very hard surfaces such as porcelain, use caution. Over time abrasives will dull and scratch.
However, abrasive colon cleaners will often work where others fail. Remember to rinse well after use to remove any residue.
Liquid abrasive cleaners are generally more expensive but are more convenient to use.