Where can I get stone ageing paint from?

[TArrryan]

I have been contacted by a client who wants a large area of brickwork painted with a stone ageing paint to encourage lichen and micro organism growth.

Its not something I have ever done before but I know the paints exist, I just cant find them!!

 

Any help in locating the paint would be greatly appreciated.

[TRADITIONAL LOGGERS]

Cow manure.

[TArrryan]

As happy as I would be to smear cow poo on a clients wall (and be paid for it!!) I don't think he would be happy with it its a good idea though

[TRADITIONAL LOGGERS]

Watered down so not too visible.

[TArrryan]

hmm that seems a bit more practical, the only mother suggestion I have had is to paint to wall with watered down yoghurt...

[Arbgirl]

I was going to say yoghurt too

 

Its less messy than manure

[penfold]

it needs to be a live yoghurt like greek yoghurt.

[TArrryan]

Yep seems Yoghurt and cow slurry are the two most common options.

 

Cow slurry reduces the Ph of the wall to make it more palatable for lichen, it of course provides nutrients and has a immediate darkening effect.

 

Spraying watered down Yoghurt onto the wall has a smiler effect but takes several weeks to form a darkened organic surface.

 

either way it will take several years for the lichen to start growing, maybe more if the conditions are not right

[Tommy_B]

Feed the yoghurt to the cow first, then you get the best of both worlds....

[tommer9]

As above- cow dung or yoghurt. Just tell your customer that is their choice, or they can have shiney new stone. It doesnt take that long if not in too exposed a ocation. Done it on slate rofs more than once with success.