CalSilencer is a flocculent blend developed for the fast, effective, removal of silt, mud and sand deposits. This powerful formula is suitable for cleaning and preserving central heating systems, and also for treating sewage lines, drains, cooling towers and water plants. CalSilencer creates a small electrical charge on silt particles, causing them to become buoyant for easier flushing out of the system. Ideal for use with new and old systems, treating with CalSilencer gives a long lasting effect, as solid mass is actively prevented from reforming. Compliant with Classification, Labelling and Packaging (CLP) Regulations, aligned with the Globally Harmonised System (GHS). Conforms to REACH Annex II. Suitable for use with all components will not harm aluminium or other metals Requires no neutralisation Material treated with CalSilencer is unlikely to form a solid mass again