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rubber mold header
rubber mold A
 

The Alphabet Chair required a one-sided rubber mold with a plaster mother mold. It was made at New England Sculpture Service by Chris Pelletier using Polytek 74-30 (a polyurethane mold compound). The process was well documented in the images below. Click on the thumbnails for larger images and a detailed description of what's going on.

rubber mold B
 
click on images for details

prep header

prepping with plasteline
"p" removal
extra support
Chair prepped
rubber header
first layer of rubber
building layers
thickened layers of rubber
shims
mother mold header
plaster mother mold
applying slip
mold layers
mother mold with supports
removal header
mother mold removal
peeling off rubber
rubber mold splayed out
completed rubber mold