AGM AND PAINTING SURFACE DEMO
AGM
All current members of the Committee who agreed to continue
were re-elected and Henry Needham was elected onto the Committee.
We still need a Publicity Officer and a Treasurer but
hopefully we will have these soon!!
Full details of the meeting will be available in the
minutes.
BRING AND BUY
Claire had organised this so thanks to her and to everyone
who brought and bought.
Demonstration on
painting surfaces by Di.
It was obvious that Di had spent many hours investigating
and preparing this demonstration.
She explained the advantages and disadvantages of different
surfaces and their preparation for painting. 3mm MDF is rather thin so it is
best to use a thicker MDF as is the case with plywood. Plywood and hardboard bend and are affected by heat and
water. All surfaces have to be primed
and it is best in the case of MDF to use a sealer or shellac. As MDF is
carcinogenic and contains formaldehyde it is best to cut it wearing goggles and
thoroughly seal it on both surfaces and sides.
An ordinary paint primer is no use as it doesn't last - it
cracks and peels off.
Di then showed us how to make gesso from 2 parts paint : 1
part whiting : 1 part PVA glue : 2 parts water. Texture can be added using eg.
egg shells, vegetable netting or pulses or by making it thicker to use it as a
texture paint. The first coat of gesso should be thin but the next 2 or 3
thicker.
All the boards can be covered with fabric. First cut the
board to fit the frame then cut the fabric either to the edge or leaving an
edge to be folded over. A disadvantage is that it can wrinkle.
Aluminium is another surface which can be used. It is light
and indestructable and can be used with many media but not pastels. It must be
cut to fit the frame. It is first sanded with a block then wiped over with
alcohol to remove dirt and dust before priming with gesso. Pictures can be hung
by attaching wooden stripes with superglue then using hooks or self-adhesive
hooks can be used.
We thank Di for a very interesting and useful demonstration
which will prove very useful for future paintings. Full details are available
on her website
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