October 30, 2017
Rust stains on renders can be caused by flue pipes, satellite dishes, mild steel fixings, overflow pipes, etc. And they can cause an otherwise sound property to look unsightly.
* Our tests showed positive results on all the renders we’ve tried it on except cement based render. (i.e. sand and and cement, which should be painted anyway – and in which case it too will be fine).
Quick tip: Because there are so many types of render, with varying constituents, and formulas are constantly changing, it is impossible for us to test them all. So, with your customer's permission, always test a small, out of the way area of any surface you are considering treating with any of our products – and obtain your customer's agreement that the result is acceptable to them – before treating the entire area.
In the picture below you can see rust stains caused by fittings on a flue.
We brushed Oxy Cleanze on and left it to work. Temperature was 15 ℃
Notice the difference in the photo below after only 3 hours (it would have been much quicker in warmer conditions).
You can see that, although dramatically improved, there are still some faint marks, which will likely become less pronounced over time. You can see the shadow left behind as a result of the treatment, which is a side effect on some renders. A repeat application of our rust remover gel could be beneficial.
Quick tip: The key to successfully removing rust stains from renders is to apply Oxy Cleanze rust removal gel only to the specific areas that need treating. On some renders and masonry there may be an undesirable bleaching effect. Always treat a small, inconspicuous test patch, and get your customer's agreement to treat the whole area, before completing the contract.
In the photo below you can see the stains caused by rust from a hanging basket bracket.
We treated the rust with Oxy Cleanze rust remover gel and and successfully removed the staining.
However, notice the shadow left behind, which is the side effect of over-using Oxy Cleanze on this type of render. This photo shows the importance of applying rust remover gel only to the areas that need treating.
The photo below shows a similar bracket where we used a smaller quantity of Oxy Cleanze and the results, as you can see, were much improved.
We hope this information is helpful.
Ben, Leo & Fiona
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April 01, 2021
We recently tested – just out of curiosity – some old Tornado Cleanze that was nearly two months past it's best-by date. We wanted to find out how long it could be stored for and still produce effective results. And stored badly at that ...
Want to know what happened? (the results even surprised us)
Click the link on this page to find out ...
March 11, 2021
Cleaning caravans and mobile homes is an excellent soft washing market.
The process is simple and straight-forward. And cleaning several on the same day can be highly profitable.
Click the link on this page to learn more ...
March 04, 2021
Huge thanks to all our customers for your loyalty in making Benz your softwash product supplier of choice. We appreciate the fact that so many of our trade customers come back to us week after week, month after month, year after year.
And by way of practical appreciation, we've decided to no longer pro-actively seek domestic customers for our products and will not knowingly sell products to the customers of our trade customers, i.e. those who want to play around with d.i.y.
Click the link on this page to continue reading ...
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