Douglas & Sturgess >>
Smooth-on >>

TPE thermoplastic elastomer
recyclable
can be used instead of PVC
transparent
easy to dye

silicone rubber
non-organic
nonconductive
injection molded
open or close mold
heat set
good in high and low temperature vs organic rubber
nonconductive

polyurethane rubber
organic
sets at room temp
injection molded
open or close mold
nonconductive

silica aerogel
extremely lightweight (99.8% air)
extremely expensive
hydrogel
absorbent (99% water)
flesh-like
water-soluble
silicone based
dye-doped hydrogels/thermochromatic
change colour or transparency
passively by solar exposure
actively by electricity
hybrid of active and passive
technogel (levagel) >>
ployurethane base (non-toxic)
shape memory
molds in all three axis (balanced pressure distribution=comfort)
translucent
shock absorbing
recyclable
ultra-flex
silicone (non-organic) gel or polyurethane (organic) gel based
photoresist
Fuji Film >>
insoluble by exposure to ultraviolet light