How to clean mortar off bluestone?

[mitchlc]

I have mortar staining on my bluestone pavers which I didn't think was an issue at the time I laid them, but apparently you can't use hydrochloric acid on bluestone... I've tried soapy water and a nylon brush but the staining won't go away. Any ideas how to remove this without damaging the bluestone? Thanks

[EricL]

Hello @mitchlc 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about removing mortar stains. 

I suggest giving Chemtech 1L Brick Tile And Paver Cleaner a try and see if it will lift off the mortar stain on your pavers. Please remember that this is a concentrate and must be diluted before use. I recommend testing a small section first just to make sure that its compatible with your paver. I don't recommend using hydrochloric acid as it will damage your pavers surface.

Here is a link to our best advice: How do you remove mortar stains off brick

Please remember to wear personal protection such as gloves, goggles and a mask.

If you need further assistance, please let us know.

Eric

[mitchlc]

Thanks Eric, it looks like this paver cleaner contains hydrochloric acid. Do you know of any paver cleaners that aren't acidic? otherwise I'll try testing this on a spare paver and see how I go

[EricL]

Hello @mitchlc 

As a secondary option, I suggest looking at Builders Edge 750ml Cement 'N' Concrete Remover. Again, please test a small corner for compatibility before committing the entire area.

Eric

[mitchlc]

Cheers Eric, I'll give those a go