It seems to me that there is a growing movement in some places (not on here, here is nice, open and respectful) that NHL is bad.
Maybe not as bad as cement but still no good. However, looking around all I seem to find is opinion (some quite biased) and preference.
Is there any decent independent data ?
What do people here think?
For me it depends where I am working / what I am doing.
Outside I tend to like NHL as it almost acts like a normal "cement" mortar in preparation, use and it also "sets".
Hydraulic lime is also available from the local travis perkins which helps if I'm only doing a little bit of work.
Inside I have moved over to putty. I tend to find that finish coats with putty seem smother / better for the job BUT this is pure opinion. I also strongly suspect that it may just be my perception and thinking that because it comes from a nice creamy putty it must give a smooth finish.
p.s. I normally make my putty re-hydrating hydrated lime (which I can buy from the local buildbase) and then leaving it to sit for a few months topped with water and sealed in a 120 Ltr plastic drum.
There is also some debate if this method is as good as putty from hot slaking but theoretically hydrated lime is just lime that has been partly slaked, my soaking is just finishing the job. It seems to work and carbonate okay so I'm happy with my process.
Maybe not as bad as cement but still no good. However, looking around all I seem to find is opinion (some quite biased) and preference.
Is there any decent independent data ?
What do people here think?
For me it depends where I am working / what I am doing.
Outside I tend to like NHL as it almost acts like a normal "cement" mortar in preparation, use and it also "sets".
Hydraulic lime is also available from the local travis perkins which helps if I'm only doing a little bit of work.
Inside I have moved over to putty. I tend to find that finish coats with putty seem smother / better for the job BUT this is pure opinion. I also strongly suspect that it may just be my perception and thinking that because it comes from a nice creamy putty it must give a smooth finish.
p.s. I normally make my putty re-hydrating hydrated lime (which I can buy from the local buildbase) and then leaving it to sit for a few months topped with water and sealed in a 120 Ltr plastic drum.
There is also some debate if this method is as good as putty from hot slaking but theoretically hydrated lime is just lime that has been partly slaked, my soaking is just finishing the job. It seems to work and carbonate okay so I'm happy with my process.