What's the optimum temperature for applying Benz Bio Cleanze?

May 03, 2019

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

A customer recently asked us about softwashing with Benz Bio Cleanze

1) Is there a minimum temperature for softwashing with Bio Cleanze?

2) If there is, what would happen if we used it below this temperature - what affect would that have?

The best temperature for softwashing with Benz Bio Cleanze

We recommend spraying above 8 degrees C and below 30 if at all possible. This gives the most consistent results. However, there is some scope for using the product outside of this range, depending on the weather and type of surface being treated.

20 degrees is the optimum application temperature, and we have generic test data that was carried out at 20 degrees.

Above 30 degrees would create boil-off issues. In this case spray early morning or late evening to utilise the cooler temperatures.

There are so many variables, including the perceived effect of self-cleansing, which happens faster in warm weather.

In general it;s best not to use Bio Cleanze below 8 degrees. This is because below this temperature the product may not work consistently at the dilution rates we recommend on the product label and other material. 

However, the good news is that applying Bio Cleanze at lower temperatures will not have any detrimental affect on the surface being treated.

Quick tip:

We've successfully used Bio Cleanze at lower temperatures, down to as low as 4 degrees, by following these guidelines:

1. Plan your working day so that the product is applied at or just before the warmest part of the day. This works especially well on days that are cold but when there is direct sunlight.

2. Use warm water, max 45 degrees, to dilute Bio Cleanze.

3. Use a slightly stronger mix than on the application guides, and which you would use in warmer weather.

We hope this information is helpful.


Ben, Leo & Fiona


Click here to learn more about softwashing via Benz Trade Tips softwashing how-to posts

The Benz Softwash range of softwash cleaning products

Click Here
to explore the full range of Benz popular softwash cleaning products

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

Leave a comment

Comments will be approved before showing up. Please revisit this Trade Tips post to read our response.

Also in Benz Trade Tips

The fastest and most profitable way to learn professional soft washing (video how-to)
The fastest and most profitable way to learn professional soft washing (video how-to)

September 02, 2020


How can you learn the practical how-to of soft washing quickly, easily and simply – without wasting several years "re-inventing the wheel" – learning through arduous trial and error – when you could have been up and running in a few weeks?

And earning well-deserved profits from a highly efficient soft washing business.

Then there is the thousands of pounds/euros that the unwary, knowing no better, can waste on expensive, and often unnecessary or inappropriate, softwash equipment. We're sure you don't want to be like them.

Click the link on this page to learn more ...

View full article →

Softwash Equipment 01 - Planning our new softwash van
Softwash Equipment 01 - Planning our new softwash van

August 25, 2020

In this ongoing soft washing video series Ben explains why and how he uses various types of softwash equipment.

What soft washing equipment you choose to build or purchase depends on several factors: for example the number of employees you have and the type of properties you soft wash.

Want to know more?

Click the link on this page to watch the video ...

View full article →

Soft washing an artifical slate roof with Benz Bio Cleanze
Why pressure (jet, power) washing a roof is NOT a good idea

August 08, 2020

(Due to logistic problems associated with the government restrictions around Covid-19 this is a written, not video, Trade Tips post this week)

A customer asked us, if it would be a good idea to pressure (aka jet, power) wash a roof prior to treating it with Benz Bio Cleanze.

That's a reasonable question.

You could jet wash a roof and then treat with Bio Cleanze.

But why would you?

Want to know the rest of the story? Click the link on this page ...

View full article →