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UK General Cleaning Forum => General Cleaning Forum => Topic started by: tony dubois on January 19, 2015, 04:06:13 pm

Title: Render stains on brickwork
Post by: tony dubois on January 19, 2015, 04:06:13 pm

Can anyone help on this?

Have been asked if there is a solution to this problem.

Staining on brickwork below freshly rendered wall.

Brick acid has been tried but had no effect.

I believe the render used is Weber Pral M.

Image attached.

Thanks(http://www.cleanitup.co.uk/smf/1421683538_2015-01-19.001.jpg)

Title: Re: Render stains on brickwork
Post by: Kev Martin on January 19, 2015, 04:41:47 pm

This is an Alkaline Product with additives so the additives are preventing you cleaning it with an acid.  Go over it with a stripper to break down the polymers trhen use an Acid Heavy Duty Cleaner

Kevin

Title: Re: Render stains on brickwork
Post by: tony dubois on January 20, 2015, 09:08:36 am

Thanks Kevin

I will pass your details on to them.