[cohen]

Looking for advice on best way to clean tarmac..I’ve tried wider beam nozzle but doesn’t seem to take all moss off.and drys streaky..can hypo be used or will it stain path?does biocide take a while to work??any thoughts..never had a good clean on this medium and seem to be getting lots of inquiries .

[Splash & dash]

We use a flat surface cleaner and don’t run the washer on too higher reves or it will rip up the tarmac , personally I think Tarmac is the hardest surface to clean and not get stripes we always leave a big overlap on passes to help avoid them trouble is you only see them when it’s dried :
What I am about to say will cause controversy I’ve no doubt we have used hypo on Tarmac to kill moss and lichen for over 10 years never had a problem with bleaching it but we use 15% strength and put 4 parts water to 1 part hypo , another way would be to spray it with weed killer a few days before then wash it if you are worried about bleaching

[SB Cleaning]

FSC is the best thing to use.

[Smudger]

FSC - is best unless using steam 😎

Hypo is good

Weed killer you can only spray if you have a licence

Darran

[eurosanic]

The truth is that both FSC and Steam are wonderful products to clean properly.