A: No, KRC-7 ULTRA cannot be used on marble or any other natural stone.
A: No, do not use KRC-7 ULTRA on marble or any natural stone. thank you
A: KRC-7 is safe for septic systems.
A: Yes, this item can be used to safely and effectively removes soap scum, hard water stains, rust, mineral deposits grease and other contaminates from non-slip tubs, ceramic, fiberglass, plastic, stainless, copper, brass, aluminum and glass. It does not contain bleach, abrasives, caustics, muriatic acid or petroleum distillates.
A: Yes, KRC-7 ULTRA can be used on porcelain sinks. However, the age of the sink and extensive use of abrasive cleaners have to be taken into consideration. Older sinks, and/or sinks that have been cleaned extensively using abrasives, might not have much or any glaze remaining. A porcelain sink without glaze is a sink that's susceptible to staining. Always test on a small area and allow to dry before general use.
A: DONT THINK SO.