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

October 20, 2023

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

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

Quick tip: If your customer and nature of the job makes it possible, we suggest using Benz Lightning Cleanze as your first choice product to clean a painted surface, because cleaning and rinsing can often be completed on the same day.

Soft washing painted surfaces with Bio Cleanze

Sometimes a customer's preferences, site regulations or ecological considerations, may indicate the use of Benz Bio Cleanze to soft wash painted surfaces.

This can be particularly appropriate if the property is near a pond or watercourse that rinse water should not enter.

If the property is to be re-painted, apply Bio Cleanze and rinse off after a week or two, when the biofilm (e.g. organic growths such as green algae) has gone.

Quick tip: If the paintwork is not going to be re-painted, but only needs cleaning, there is no need to rinse Bio Cleanze. Simply allow rain to wash it away over time.

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

Soft washing sand and cement render

Sand and cement render is a different proposition, 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, and the surface can be painted when it's fully dried out.

Quick tip: If a soft washing contractor treats the surface for a commercial painter, ask the painter to rinse the surface themselves, saving the soft washing contractor a second journey.

We hope this information is helpful and sincerely wish you great success in your soft washing business,

Benz Team

Click here to get more practical soft washing how-to tips

How to find answers to most soft washing questions: Simply enter a relevant "keyword" or short phrase – e.g. keyword for the above link = "how to" – into our in-site Search Engine (magnifying glass icon on the main menu).

Click here to download our Product Documentation Pack (includes Application & Dilution guides, SDS, PDS, RAMS, PPE & Mask info, COSSH, sample Contract and more)

Order Benz Softwash chemicals & equipment online or by phone:

GB (England, Scotland, Wales)

Phone: 0800 70 74 222 


Ireland and other countries

Phone: 00353 214 622 978


Lines open Monday - Friday, 9am – 5pm

Please note: The above numbers are for orders only (click here for tech support)

PS: Click here to set up your "Clean & Maintain" programme
. After completing an initial soft wash treatment, put your customer on a "Clean & Maintain" ongoing maintenance programme. Your customers will enjoy a permanently clean property and you will enjoy a steady stream of repeat business.

This is clearly a win-win arrangement for you and your customers.


Click here to explore the extensive range of Benz softwash cleaning chemicals & equipment

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

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