Components - Which aggregate should I use? (Plasters/Renders)
Bethany Evans Posted this on 22 Apr 2024
We have a range of aggregates available that can be used across all applications including; pointing, plastering, rendering and screeding. We are continually working to improve the environmental credentials of our products, looking for more sustainable alternatives to freshly quarried sands which deplete a finite natural resource. By working with suppliers in the recycling sector, we are proud to say a number of our aggregates are now sourced from recycled building materials, the waste materials are processed, washed and then graded to ensure they meet the criteria required for Lime mortars.
The table below explains the aggregate size, colour and suitable application for each aggregate.
|
Aggregate Name |
Aggregate Colour |
Aggregate Size* |
Suitable For ** |
Available in |
|
Please note, pointing joints tend to be finer for brickwork, than stonework, so the smaller aggregates are normally advisable for brickwork. |
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|
Silica |
Pale Yellow |
<1mm |
Internal Top Coat Plaster |
25kg Small Bag 1 Tonne Bulk Bag |
|
Fine Cumbrian |
Buff |
1mm |
Top Coat Plaster |
25kg Small Bag 1 Tonne Bulk Bag |
|
Rhondda+ |
Grey |
2mm |
Bagged Finish |
25kg Small Bag 1 Tonne Bulk Bag |
|
London |
Yellow |
2mm |
Top Coat Render |
25kg Small Bag 1 Tonne Bulk Bag |
|
Cumbrian |
Buff |
2mm |
Top Coat Render |
25kg Small Bag 1 Tonne Bulk Bag |
|
Shropshire |
Pink |
4mm |
Base Coat Plaster/Render |
25kg Small Bag 1 Tonne Bulk Bag |
|
Cotswold |
White with yellow fleck |
4mm |
Roughcast Render |
1 Tonne Bulk Bag |
|
* Largest aggregate size listed, all aggregates will go down to dust which generally is required to make a reasonable mortar/plaster. ** Suitable for, but not limited to the suggestions made in this table. + Recycled Aggregate |
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