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Many pre-bagged renders seem to based on limestone sands rather than silica sands.
Are there technical reasons for this or is it only a matter of colour?
Are there technical reasons for this or is it only a matter of colour?
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Hi Tim,
One reason for using limestone instead of quartz sand is the particle form which has influence on the workability: Limestone is crushed and has sharp-edged particles. Quartz sand has more round particles. The crushed limestone gives better anti-sagging properties than the quartz sand.
Andrea
"tim" wrote:
Are there technical reasons for this or is it only a matter of colour?
One reason for using limestone instead of quartz sand is the particle form which has influence on the workability: Limestone is crushed and has sharp-edged particles. Quartz sand has more round particles. The crushed limestone gives better anti-sagging properties than the quartz sand.
Andrea
[Not yet rated]
Total Posts: 2 - Pages (1): [1]
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