Prepare
the Modelling Plaster as per its Technical Information Sheet.
Application
Having mixed Modelling Plaster to a prepared
paste the mixture must be used immediately.
The mixture can be coloured with Pigments or Colour Concentrate (use
no more than 150g pigment to 1 kg Modelling Plaster and no more than
25% colour concentrate to 1 kg Modelling Plaster). Soak pigments in
a little water overnight.
Whisk/stir into Modelling Plaster till completely blended. If using
Colour Concentrate - mix with the water and then add to the Modelling
Plaster. Use immediately as plaster stiffens in 3 - 4 hours
Note: The finished surface is absorbent, before Colourwashing
we advise sealing the surface with Glaze Medium, one part Glaze
Medium four parts water. See Glaze Medium Technical Information
Sheet.
Modelling Plaster can be applied as a Rough finish or as a Smooth finish.
1) Rough Finish
Using a brush or trowel apply your first coat thinly, approx. 2mm thick.
Allow to dry 3 - 4 hours.
Apply a second coat by dabbing very small amounts of the plaster randomly,
smooth this second coat with your trowel, leaving small islands/patches
for a rough, distressed finish.
Alternatively you can apply the second coat with a large brush, crosshatching
in large strokes to give a light textured brushed finish.
Allow to dry 12 hours.
Lightly sand with medium grade sandpaper. Paint or Colourwash. See Special
Effects Sheets Nos. 1 and 3.
2) Smooth Finish
Using a trowel apply your first coat thinly, approximately 2mm thick,
allow to dry 3 - 4 hours.
Apply a second 2mm thick coat smoothing the mixture with your trowel,
like applying plaster! Leave to dry 12 hours and lightly sand for a
smooth finish. Then paint or colourwash. See Special Effects Sheets.
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