Staining/bleeding on new render, help please!

[SteveB67]

Hi, i hope someone on here can help. We recently had two small walls and
gate posts rendered. Two days after they were scratched it rained and we now have bleeding/running cement stains down the render from the capping stones on top. Can they be treated/remove? If so how, or is the solution just to paint them? The cement above has been treated to two coats of Thomson’s water seal.
Cheers in advance
Steve

 

[000]

Hi, i hope someone on here can help. We recently had two small walls and
gate posts rendered. Two days after they were scratched it rained and we now have bleeding/running cement stains down the render from the capping stones on top. Can they be treated/remove? If so how, or is the solution just to paint them? The cement above has been treated to two coats of Thomson’s water seal.
Cheers in advance
Steve

50mm overhang & drip mould in coping
For half a chance of no staining ....

 

[Monkey Boy]

What render Type?

 

[SteveB67]

Parex blanco du littoral colour BL10 (white) so it’s really noticeable. The capping stones were fitted with cement but the guy who fitted them never cleared the drip mould channel, so the water has been crossing that and using that as an easy route to run down the wall. I’ve just been out and cleared the channel of cement now so fingers crossed that has cured that. But the question now is how do I remove the cement run marks?

 

[malc]

May be able to clean cement stain off with brick acid.

 

[Rossi46]

May be able to clean cement stain off with brick acid.

I wonder if that would eat at the chalk in the blanco

 

[Tramp]

I wonder if that would eat at the chalk in the blanco

It does, it eats the surface straight off mono

 

[Tinytom]

Mono is a s**t product end of. Thin coat is a hundred times better

 

[Rossi46]

Mono is a s**t product end of. Thin coat is a hundred times better

Couldn’t agree more.

 

[spunky]

Pressure wash it if that doesn’t work and you don’t have an actual ditch in the render from the water paint it

 

[woodeneye]

Mono is a s**t product end of. Thin coat is a hundred times better

S@c or lime f**k anything else