[richywilts]

been to price up a large patio today but want to get the paving slabs up best as possible is it sodium hypochlorite you use for cleaning the black marks and spots off paving slabs etc with pressure washing

if so where do you buy it from and how much

[Neil Jones]

Yes and you could do with finding a local supplier for the cheapest price, you can get it off ebay though. PPE.

[richywilts]

its about 70 sq metres how much wud i need

[Blast Away]

its about 70 sq metres how much wud i need

Size means nothing mate. Depends on the extent of the spots and how you apply it. We add amine oxide and it spreads nicely using less hypo. You try spreading just hypo and water mixed, you'll be there for a long time. Tried low pressure sprayers, wouldn't advise. The amount of times we had blocked nozzles and you don't wanna be farting around trying to unblock them. Soft car brush for £15 and a bucket.

[richywilts]

cheers lee got a couple of job lined up for it where best to buy both products mate

[Neil Jones]

Blastaway where can I get Amine Oxide near us?

[Blast Away]

cheers lee got a couple of job lined up for it where best to buy both products mate

I don't know anywhere local to you Richy.

Blastaway where can I get Amine Oxide near us?

Same place as I get my hypo. You said you knew where I get it from... 

[Kev Martin]

If you pre wet all the stone first with plain water you will save yourself a fortune in Hypo and the Hypo will be working where it is meant to on the surface

Kev Martin
Marblelife ltd
Tiling Logistics

[Neil Jones]

I didn't know they sold it, it wasn't on their price list, i'll pick some up next time. I won't say the name because it seems like you don't want me to but it's the one near Crown Oil and Taybur, fortunately Matt who owns Crown is one of my customers so i'm down that way often.

[Blast Away]

I didn't know they sold it, it wasn't on their price list, i'll pick some up next time. I won't say the name because it seems like you don't want me to but it's the one near Crown Oil and Taybur, fortunately Matt who owns Crown is one of my customers so i'm down that way often.

I'm not ar**d really pal. I've put it on here before for people and told others where to go. If it helps people do a better job then fair enough. I'm not one to feel threatened by competition. There's plenty of work around, you've just gotta be committed to get to the quote. It can be difficult around your work booked in.

Ask for Mark at Walkers, tell him Lee told you about the amine and he'll bang some in a tub for you. £2 a litre. It's not on the list as it's a raw material.

[Neil Jones]

Cheers pal, going to pop down on Wednesday as i'm at Crown. That hypo he sells is lethal as well, not used it until about two month or so back and ruined a perfectly decent pair of work pants and jumper :-(

[Kev Martin]

Cheers pal, going to pop down on Wednesday as i'm at Crown. That hypo he sells is lethal as well, not used it until about two month or so back and ruined a perfectly decent pair of work pants and jumper :-(

Your supposed to put it on the surface your cleaning not your pants and jumper

Kev Martin
Marblelife Ltd
Tiling Logistics

[one eyed window cleaning]

Hypo works better if you bring the ph level up with caustic first.

[Welby]

Lee, I normally start 70 / 30 water / hypo, how much amine oxide do you add to a mix?

Cheers
Welby

[Blast Away]

Lee, I normally start 70 / 30 water / hypo, how much amine oxide do you add to a mix?

Cheers
Welby

Depends on the extent of what you're tackling mate. Water first then hypo and always amine last. We've done mixes with too much water then had to do stronger, you just learn from one job to the next. Even thought at times didn't need as much hypo in this mix.  

Amine about 100-150ml, like half of a can of diet coke aspartame to a 15-20 litre mix. Once added last knock up well.

Fan nozzled off some concrete base panels this morning at a house then brush on a mix to shift the spots, just left on and they looked great.

[Welby]

Cheers mate, will def give it a try

[Jettaway]

Lee, do you just leave the hypo on the black spots at the end of the job them mate? Without rinsing it off and just let the rain do it.

[Blast Away]

Lee, do you just leave the hypo on the black spots at the end of the job them mate? Without rinsing it off and just let the rain do it.

No pal. With indian stone they some a quick going over.

That roof we're cleaning is on the 23rd up near you.

[Jettaway]

Nice one, thanks mate. Thats a week Thursday. I'll put it in my diary and pop over then. My numbers 07902154171.