[Dave Willis]

Anyone found anything that shifts it? Mould killer seems to lift it off for me  (I guess it contains bleach )
Anything else? Patio cleaner perhaps?

[Smurf]

blackwash funny enough 

[Dave Willis]

Is there a uk supplier?

[Smurf]

Not that I'm aware of.

[slap bash]

Bens soft wash. No one is observant around here there was so much talk a few months back But then we are window cleaner and a big thick.

[Dave Willis]

........ and they can't spell.

[Dave Willis]

Benzalkonium Chloride I wonder if that's where the company name comes from?  Very good fungicide/surface biocide apparently.

[dazmond]

what cant you get off dave?i just use virosol/hot water and maybe CIF for stubborn stains for conny roofs and that usually does a good job.

can you put up a pic of your definition of "mingin black"

[Dave Willis]

No cant get my van in the picture. I'm talking about the black mould that covers the polycarbonate that virosol/g101 struggles to shift. Rub it with your finger and the thousands of spots will shift but not with a soft brush. Mould killer seems to lift it with little effort but it can't be good for the plastic.

[Smurf]

Hypo the crap out of it works for me. Yehaa! 

[Dave Willis]

I've never seen this Yeehaa! locally yet otherwise I'd buy some and maybe stick it in a hand sprayer. Is there a ranch near me?

[Smurf]

Any local pool supplier or farmers type shop should sell Sodium Hypochlorite. However If you ask for hypo or yehaa there is a good chance you will get a funny look as they will have no idea what you are on about 

You will normally be given a choice of either 10% or the very much stronger 14-15% which is really nasty stuff. Then all you do is decide what soft wash mix you want to make. Bearing in mind a strong mix can still be very corrosive and is still nasty stuff to go spraying about.

For plastics/glass tends to be 1% or maybe 2% if you’re a feeling really daring.  Then just add none ionic concentrated sufficant to give it some extra bind to surfaces. Then also concentrate masking scent to the solution if you don't like the smell of swimming pools lol. 

Or if you don't want all the hassle just buy blackwash (10% hypo) instead with both already added and use it as directed.   
I personally would never use a standard type fine mist sprayer as misting this stuff about is not a very good idea even as low as 1%.

[dazmond]

No cant get my van in the picture. I'm talking about the black mould that covers the polycarbonate that virosol/g101 struggles to shift. Rub it with your finger and the thousands of spots will shift but not with a soft brush. Mould killer seems to lift it with little effort but it can't be good for the plastic.

i see dave.i flip my brush round and use my gardiners scraper thats always attached to my pole and give them a quick scrape or use a stiffer brush.(stiff radius sill usually helps).

[Smurf]

If you are looking for a scraper for plastics/glass then a DA Multi Tool/Bronze Wool Pad Holder Kit might of interest to be able to scrub larger ares down quickly http://da-components.com/shop/

https://www.youtube.com/watch?v=O6du1v9L9RA

Or the large bronze wool pads on there own work quite well too https://www.youtube.com/watch?v=JWXL6-WTNlU

[Smurf]

This is also another interesting concept https://www.youtube.com/watch?v=XYqJ00cvAwo

[Steven Biggs]

Does anyone use the bronze wool . Looks good . Could be used on plastics . And also stuck on the side of the brush .