In article ,
dave writes:
On Thu, 27 Aug 2009 10:38:16 GMT, Stuart Noble
wrote:

Mark wrote:
The Medway Handyman wrote:

Got to do a fair bit of pointing soon,

I've also seen a sort of sealant gun for mortar

http://www.toolstation.com/shop/Hand...0/sd140/p51065
Are these any good? Bit wary after spending money on a Durgun which was
useless (I know its for a different application).

video of someone using a mortar Gun
its ok with Lime, but Christ it would be an unimaginable mess with cement
mortar.
http://www.youtube.com/watch?v=cgjxCcQ020M

That was certainly my experience

Would you care to elaborate for folk like myself who don't know why?

Well, I haven't tried one, so I can only guess, but I can't
imagine mortar being sufficiently fluid to flow through the
device. Imagine trying to operate it full of dry sand for
starters -- I wouldn't expect that to work. If you make the
sand damp, it's even less fluid (i.e. you need wet sand to
make a sand-castle). If you add more water (ignoring for
the moment that it will be wrong proportion for a mortar),
then squeezing it will just squeeze out the excess water,
as sand doesn't actually dissolve in water.

So I'm left asking myself how on earth it could work?
Maybe if you mixed your mortar with ultra-fine sandpit sand?

--
Andrew Gabriel
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