plastering sand?

[Ejaz]

I saw this stuff in B&Q and was wondering what it's for? I need to do some internal rendering on a wall that was suffering from damp, should I use this stuff rather than building sand for the render mix?

fanks!

 

[noseall]

yup.

it is rinsed in such a way that the particles left behind by rinsing are larger and so lend themselves better to rendering.

basically it means you won't get shrinkage crazing. probably.

 

[Ejaz]

interesting, so i guess i can use outside aswell? also is it better for top coat or scratch or both?

 

[noseall]

you can use indoors or out. if you do use externally, don't forget waterproofer. adding hydrated lime helps too.