Mod Roc Instructions

Mod-Roc

Mod Roc is plaster impregnated bandage. Can be used for modelling, collages, stage props, mask making, murals, railway modelling, general craft work or for mould cases.

Instructions

It is easily cut with scissors and it is best to first cut a quantity of sizes and shapes sufficient to complete your model.

Keep the pieces of Art-Roc in a plastic bag to protect them from splashes of water and only take out small quantities at a time.

Dip a piece of Art-Roc in cold water and shake off any surplus, do not leave it in the water.

Apply it immediately, carefully moulding and pushing it into shape, paying attention to any hollows and bumps which will form the details of the model.

Work Quickly as Art-Roc begins to set after about 3 minutes.

Slightly overlap the individual pieces, 3 or 4 layers gives reasonable strength, but 5 or 6 is better.

Handle models carefully or they may crack. Some features may need extra support.

For a smooth finish soak small pieces of bandage and squeeze or rub the plaster onto your model, Work with a circular motion using your fingertips to smooth out the surface.

Cover trimmed edges with narrow strips of Art-Roc i.e. around holes left for eyes and mouth.

Don't pull strands of cotton off your model, this will cause damage. Trim with scissors instead.

Your model will be hard enough to handle after about half an hour, but will reach full strength overnight.

Plaster bandage models can be coloured with water or oil based based paints or emulsion will further strengthen models.

MOD ROC for sculptures or large models

Use damp, screwed-up newspaper or shaped card as a former and then cover with plaster bandage.

If using chicken wire or similar skeleton tie small strips of dry bandage onto the framework to assist the wet bandage to adhere to the frame.

Moulds/masks of faces

Cover the face with Vaseline, particularly any facial hair (don't try this if you've got a beard!)

Build up a framework following the main features and shape of the face. Leave plenty of space around eyes and mouth.

After 3 layers the mask can be removed. Extra detail and exaggerated features can now be added. When dry make holes with a bradawl to attach ties. Paint and decorate.