Most "dirt and grime" on exterior hard surfaces is actually an organic colonisation of algae, lichen, fungus and mould. Soft washing is the process of killing and removing these growths (aka "biofilm") to reveal the clean surface they were covering up.
Benz Bio Cleanze and Lightning Cleanze are both government approved softwash biocides. They are both used to treat biofilms on exterior hard surfaces.
They have different active ingredients, work differently, and are used for differing soft washing applications.
Depending on the level of colonisation, Lightning Cleanze can be used in two ways:
By utilising these two chemicals in this synergistic (1+1=3) manner, you can achieve highly effective results without using high concentrations of either product. This saves you money and saves our environment from exposure to unnecessarily strong chemicals.
Quick tip: Surfaces with heavy to extremely heavy colonisation often benefit from a pre-treatment with Bio Cleanze two weeks to three months before treating with Lightning Cleanze. This is a particularly useful practice for the treatment of sand and cement render prior to painting.
IMPORTANT: Never mix Bio Cleanze and Lightning Cleanse together because toxic chlorine gas will be produced. Post-treat a Lightning Cleanze treatment with Bio Cleanze only after thorough rinsing.
Use the tables below to determine the most effective dilution for the surface you are going to treat. In certain instances, a single product treatment will suffice, while for others, a combination of two treatments may be necessary.
Ultimately it will be your hands-on experience that will be your best guide. But start out by cross-referencing between these tables to determine the most effective dilution to use for your particular contract and the results your customer wants you to achieve.
For more detailed information about keeping surfaces consistently clean throughout the year, take a look at Benz "Clean & Maintain Systems" on our international website.