Marshalls keybond

[loudog]

Hi Ya Chaps, I have put a quote in for a paving job, which the client has accepted. She has looked in the Marshalls book, she has asked me my advice on the this Keybond stuff. I held my hands up and said I have never used it, which I haven't. Is it just a gimmick as you know what people are like, if you don't use what Marshalls (bible) advise, they think your pulling a fast one.
Kind regards

[ken]

Its only worth using on block paving where the jointing sand will suffer from scour.

[loudog]

I will be laying Tegula blocks. What is scour

[ken]

Scour is surface water washing out the jointing sand, normally only happens on really steep area’s of block paving tho.

[loudog]

Cheers Ken, so what shall I tell her, that it's not necessary?

[ken]

Advise her against keybond if you know scour won’t be a problem, as it will save her a few quid. But give her a price to apply the stuff as well as she’s mentioned it.