How to make a scroll cast (part 2)

Half of the scroll is submerged in clay.

There is white plastic lining around this mold so that the surface will be smooth and the silicone will not stick to the wall.

Notice a series of pins or holes around the scroll's profile.  These are negative/positive so that it will be easier to align the two parts once the mold is complete.

Four clamps to keep it all together.

Make a funnel with a piece of paper and start applying the RTV rubber paying attention not to generate bubbles.

RTV: Dow Corning Silastic E:

Dow Corning Customer Service

(800) 248-2481

call for local distributor.

Clay: Permoplast:

American Art Clay Co., Inc.

4717 West Sixteenth Street

Indianapolis, IN 46222

(317) 244-6871

Tape: Scotch - Hi-temp masking tape, Inhibitor-Free

3-M

St. Paul, MN 55144

(612) 733-1441

Mold Release: Epoxy Par film - Ultra

The Price-Driscoll Corporation

75 Milbor Boulevard

Farmingdale, NY 11735

(516) 249-4200

Vacuum Pump: Dayton model 4Z577

Refrigeration vacuum pump

Grainger, locations nationwide

(800) 323-0620 

Urethane: Procast 20 (white, gray, or blue)

Freeman Man. & Supply Co.

1246 W. 70th Street

Cleveland, OH 44102

(800) 321-8511

To be continued.