The reason is that no sodium hypochlorite based biocide (such as Benz Lightning Cleanze) can, by itself, kill all the spores in a porous surface. And SH offers ZERO protection against re-colonisation.
Btw: Lightning Cleanze is the only SH biocide legally approved by the UK and Irish governments for softwashing external hard surfaces.
By contrast, Benz Bio Cleanze – because of its chemical nature – seeps more deeply into the surface, killing whatever spores Lightning Cleanze may not have reached.
Then some of the active ingredient remains to offer residual protection against re-colonisation through time.
No hypo mix, pressure washing, or washing only with a surfactant can give this long-term residual biocidal protection from re-colonisation
Treating with Lightning Cleanze first kills off the majority of the spores and gives our customers what they want – a near instantly clean property.
It also means that Bio Cleanze has relatively few spores to kill, meaning that less of the active ingredient is used in the process of immediate cleansing. This enables more of the active ingredient to remain in the surface, thus increasing the degree of long-term biocidal protection against re-colonisation.
Bio Cleanze completes a softwashing job on a porous surface, assuming the customer is willing to pay a little extra for the best. Of course if they only want a quick clean before selling the house they likely will not want to pay for the increased long-term protection that Bio Cleanze offers, because they don't expect to be in the property long-enough to enjoy the results. In this case a treatment with Lightning Cleanze is all that is required.
It must be remembered that Bio Cleanze keeps working for 6-12 months following application, bringing the surface increasingly clean through time.
Lightning Cleanze does it's work within 60 minutes. Results may improve over 2-3 days but it does not continue to protect the surface. No SH product or mix can do this (ignore any claims to the contrary because they are false - SH is chemically incapable of this).
Contractors need to appraise the needs of every contract on an individual basis, taking into account the type of surface to be cleaned, severity of the infestation, the depth of the infestation, the local environment, and, importantly, understanding what their customers want them to achieve and how much they are willing to pay.
Quick tip: On paths and patios that are likely to be walked on by chlldren and animals we suggest a maximum application strength of 40:1 for Bio Cleanze.
We hope you found this information helpful and inspires you to succeed in your softwashing business.
Ben, Leo & Fiona