Tuesday, 14 May 2019

Plaster casting flowers.....

More experimenting with taking impressions in clay and then using plaster of Paris to make a cast. So far improvements have included realising if you have a stem in the impression that goes under the frame ...it will channel the plaster of Paris, but not for far; clay can be smeared up the sides of any joints in the frame to stop it leaking; mixing PVA into the plaster makes it less delicate. After taking the cast and letting it dry fully, I coated it with 50:50  PVA: water mix - this seemed to be the best surface to paint on in acrylic. Painting isn't going to be easy and may require a few layers - we'll find out tomorrow!



Pressing flowers into clay.....

Removing the flowers and making a plaster cast 

The plaster in the frame....buttercups and cowslips from the garden.

Cowslips and plantain.

Plaster casts painted with gesso and PVA mix.

Experiments prior to painting ....using the cast I was to impatient to remove from the frame! 

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