How to Create a Plate Casting

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Prepare alginate 

molding material (step 1) as directed on the package.  [For this project, we used the infant foot refill powders.] 

 Mix quickly and thorougly.  The mixture may remain lumpy - much like cake batter. Once the mixture begins to lose color, 

pour into a flexible plate, tray, or pan in the shape of your choice. Immediately place clean, damp hand into 

the mixture.  Be sure NOT to push all the way through  such that the hand is touching the plate. Once the molding material is set 

(rubbery and not sticky to the touch), break the suction and remove the hand. You may 

choose to trim away loose pieces of molding material. You 

don't want them to fall into the mold during the next step. Prepare the casting stone as 

directed on the package. The mixture should be the consistency of paint.  If it is too thick, it may not pick up 

fine details.  If necessary, thin it down with a small amount of cold water and continue to mix. Fill in the impression with casting 

stone.  Tap the mold to release any air bubbles.  Then fill up and above the mold into 

the plate.  Allow the stone to set (1-2 hours). Once set, pull the plate away from the 

mold and then separate the mold from you newly created plaque. Allow to air dry for several 

days. If you choose, you may seal or 

paint the plaque (acrylics work well). lightbox gallery flashby VisualLightBox.com v5.9