I've been using a mix somewhere between 4:1:1 and 5:1:1 soft
sand:cement:lime for my pointing and block laying recently.

Is this about right for rendering? I only have a small area to do
where I have removed a window, about half inch thick.

TIA.
Rob



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Kalico wrote:
I've been using a mix somewhere between 4:1:1 and 5:1:1 soft
sand:cement:lime for my pointing and block laying recently.

Is this about right for rendering? I only have a small area to do
where I have removed a window, about half inch thick.

Get a couple of small bags of washed sharp sand, & use 1:1:6.
Don't use soft sand.

On Fri, 21 Oct 2005 10:52:39 +0100, Chris Bacon
wrote:

Kalico wrote:
I've been using a mix somewhere between 4:1:1 and 5:1:1 soft
sand:cement:lime for my pointing and block laying recently.

Is this about right for rendering? I only have a small area to do
where I have removed a window, about half inch thick.

Get a couple of small bags of washed sharp sand, & use 1:1:6.
Don't use soft sand.
Thanks for that.

Cna you tell me why soft is no good and I should use sharp?

Cheers
Rob


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Kalico wrote:
Cna you tell me why soft (sand) is no good and I should use sharp?

It contains fines, and can shrink and crack when it goes off.