13, June, 2018

How long after applying Benz Bio Cleanze can a surface be painted?

Benz Softwash Bio Cleanze DDAC biocide & Benz Softwash Lightning Cleanze SH sodium hypochlorite biocide

A customer asked us, "How long after applying Benz Bio Cleanze can a surface be painted?"

Softwashing painted surfaces

Apply the biocide and rinse off after a week or two, when the biofilm (organic growths like green algae) has gone.

This ensures that any chemical residues are removed and also spiders nests, birds droppings, dust, and so on, which is essential for good pre-paint preparation.

Quick tip: If your customer and nature of the job makes it possible, we suggest using Benz Lightning Cleanze to prepare a painted surface as the job can be completed quickly.

Softwashing sand and cement render

Sand and cement render is a different proposition however, especially if it's been left for a long time when it should have been painted. In this case we suggest applying Bio Cleanze and leaving it for as long as possible, at least a month and preferably two.

This allows time for natural cleansing to take place and for the deeply rooted growths to release their grip on the surface.

A final treatment with Lightning Cleanze and thorough rinsing completes the job. The surface can be painted when it's fully dried out.

We hope this information is helpful.

Cheers,

Ben, Leo & Fiona

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Benz Softwash Bio Cleanze DDAC biocide & Benz Softwash Lightning Cleanze SH sodium hypochlorite biocide