March 01, 2024
Tarmac attracts algae, moss, mould and lichen – which needs to be periodically cleaned by soft washing.
In our experience the most effective soft wash product for treating tarmac is usually Benz Bio Cleanze.
Tarmac can be treated directly with Bio Cleanze, although carefully pre-scraping or pressure washing heavy moss prior to treatment will ensure the maximum effectiveness of Bio Cleanze.
If, when scraping the moss there is still a level of growth which cannot be removed, then brushing-in the application of Bio Cleanze is useful to ensure the whole surface has been treated.
If the moss is below the top of the tarmac, spraying alone will often suffice (the photo below shows an example where spraying, without pre-scraping, would be sufficient)
Moss will turn brown and wash out of the tarmac over the next few weeks and months through the natural action of sun, wind and rain. The start of this process can be seen in the photo below:
Quick tip: A follow up application at around 6 months, to deal with any remaining spores, is usually advisable.
Apply at 25-50:1. Then follow up with regular "Clean & Maintain" treatments at 50:1 (40:1 in cold weather) every 12-24 months (depending on the local environment and other variable factors).
When treating tarmac with Bio Cleanze, the dilution for a specific job can vary from 25-50:1.
Quick tip: Although it is non-porous, because of its honeycomb-like structure tarmac can quite "thirsty". This means that giving a soft wash treatment can be more expensive than when treating a smoother surface such as concrete.
The actual dilution used depends on:
a) The external temperature. The colder it is the longer Bio Cleanze will take to work, which can be offset by using a stronger dilution.
b) The amount of moss or other biological growth.
c) How long moss has been allowed to grow into the tarmac.
d) Important: If children or animals will use the tarmac, apply Bio Cleanze at a maximum dilution of 50:1 and keep them away from the surface until it is completely dry.
e) If you can be 100% sure that no children or animals will be in contact with the surface, and you can ensure zero pooling of Bio Cleanze, then you can treat as strong as 20:1.
f) You can treat tarmac with Bio Cleanze whilst the surface is still wet immediately after power washing. But ensure all water pooling is brushed away first.
The selling point for regular soft washing treatments with Bio Cleanze is that your customer will enjoy a tarmac surface that is permanently clean. This is a similar principle to regularly cleaning windows so they are always clean, rather than waiting until they are filthy, which most people really appreciate.
Click here to learn about the Benz "Clean & Maintain" softwash systems
Yes, Lightning Cleanze will kill the growths very quickly. Lightning Cleanze is the soft washing product of choice when your customer wants immediate results and does not want to wait for Bio Cleanze to work.
If your customer just wants a quick clean before putting their property on the market, for example, Lightning Cleanze may be the most effective choice of soft washing product.
The downside is that the biological growths on the tarmac can turn into a white mush that many customers don't like.
Fortunately, giving a light power wash will usually clear the mush.
Important: Be careful not to wash the rinse water into flower beds, lawns or surface drains (use only foul water drains and if these are not available suck up the rinse water and remove it from the site for safe dispoal). You will of course need to factor in the extra cost of power washing and collecting the mush into your quote.
Bio Cleanze will clean the tarmac giving the appearance of lightening the tarmac.
In our experience, Bio Cleanze leaves the tarmac pretty much in it's original colour. So when the surface is cleaned from whatever colonisation was present, it looks lighter than areas that have not been cleaned but the actual colour is unlikely to have changed much, if at all.
Lightning Cleanze however, will impart an actual lightening effect to the tarmac. This is why we suggest applying it at 10:1 dilution and whenever possible treating tarmac with Bio Cleanze as your first choice.
Quick tip: If Lightning Cleanze is applied at a dilution stronger than 10:1 the tarmac is much more likely to turn a light grey colour.
Some customers like this change of colour. Others do not. So always treat a small test patch at first and get your customer's agreement that they are happy with the results and give their agreement for you to clean the rest of the tarmac.
Our experience is that using Lightning Cleanze at 10:1 is the optimum choice for soft washing tarmac if your customer does not want to wait for the results of Bio Cleanze to show.
Quick tips:
Click here to get more practical how-to tips for soft washing tarmac
Quick tip: Enter a relevant "keyword" or short phrase into our in-site Search Engine to find answers to most of your softwashing questions (e.g. keyword for above link = "tarmac drive")
We hope this information is helpful and wish you great success in your soft washing business,
Benz Team
GB (England, Scotland, Wales)
Phone: 0800 70 74 222
Online: www.benzsoftwash.co.uk
Ireland and other countries
Phone: 00353 214 622 978
Online: www.benzsoftwash.com
Lines open Monday - Friday, 9am – 5pm
Please note: The above phone numbers are for orders only (click here for tech support)
Comments will be approved before showing up. Please revisit to read our response.
November 08, 2024 2 Comments
How can you safely soft wash shops and other street-facing properties while protecting the public and complying with the various regulations?
Click the link on this page to find out ...
November 01, 2024 3 Comments
Do you know the most effective, and safest, way to clean solar panels?
Click the link on this page to find out ...
October 25, 2024
A customer asked us: "Will your softwash products harm windows and doors when soft washing a house? I'm thinking of the rubber trim, metal handles, etc?"
Click the link on this page to find out what we told him ...
It's a free resource for people wanting to learn about the soft washing industry, to expand an existing business, or build a new business.
Soft washing reduces, or even eliminates, the need to use high-pressure washing.
Instead, once the build up of algae, lichen, fungus and mould – the root causes of properties looking "dirty" – has been treated, the natural "self-cleansing" of sun, rain and wind removes the surface residue through time.
By educating the cleaning trade and public about soft washing we are helping develop an industry that offers sustainable treatments to clean and maintain exterior hard surfaces.
Subscribe to our free trade tips blog to download your "Professional Soft Wash Contractors Pricing Guide".
The free guide shows you – step by step – how to easily, quickly, and accurately create softwash business quotes.
This saves you time, is a highly professional approach, and increases your chances of winning new contracts.
© 2024 Benz Softwash Ltd.