How to remove limescale (calcium) from window glass (video)

March 16, 2023

How to remove limescale (calcium) from window glass (video)

What is limescale?

Limescale is a deposit of calcium carbonate – the residue left behind by hard water.

Hard water is water that contains a high concentration of dissolved minerals like calcium and magnesium. When the water evaporates, it leaves behind calcium carbonate deposits on window glass.

How to use Benz Oxy Cleanze to remove limescale from window glass

Benz Oxy Cleanze is the simplest, easiest and safest way to rapidly remove limescale from window class. No hard scrubbing or scraping required.

Watch the video below to see how quick and simple the process of removing limescale from glass with Oxy Cleanze is:


Quick tip: A factor to be aware of is how long the limescale has been on the glass. After some years of exposure to sunlight it's possible that the limescale could become etched into the glass.

Therefore the wise approach is to make your customer aware of this possibility before you begin so they understand the situation and what the results of your treatment could be.

Then treat, with your customers's agreement and permission, a small test area with Oxy Cleanze. And always get your customer's agreement that the result is satisfactory and their permission to treat the entire surface before continuing.

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

Team Benz

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

Leave a comment

Comments will be approved before showing up. Please revisit to read our response.

Also in Benz Trade Tips

How long can I store diluted Benz Bio Cleanze (softwash ddac biocide)?
How long can I store diluted Bio Cleanze (softwash biocide)?

December 01, 2023 2 Comments

How long can diluted Benz Bio Cleanze can be stored for, and still be ok to use on another job?

Click the link on this page to find out ...

View full article →

Softwash application equipment uk ireland
The Zapplicator: Benz all-in-one softwash application system

November 24, 2023 3 Comments

The Benz Zapplicator enables you to apply softwash chemical products with greater ease & effectiveness than other application systems, for more profit in your pocket!

View full article →

How to soft wash slippery & rotting wood/timber/composite (plastic) decking
How to soft wash slippery & rotting wood/timber/composite (plastic) decking

November 17, 2023

Slippery decking can be dangerous as well as unsightly. Covered with biological growths such as algae, people can slip and break bones. And of course it is simply unpleasant to sit out on a filthy, mouldy, rotting decking that was erected to be a joy.

Softwashing wooden decking and other timber buildings and fences can be a huge market for softwashing contractor who knows what they are doing.

Click the link on this page to "Learn & Earn" ...

View full article →