Materials Info

Thermochromic ink (all colors)

color change at 30 degrees C (86 degrees F)
where to get, USA: Paint with Pearl


Liquid crystal paint

1: color change 29-33 degrees C (84-91 degrees F)
2: color change 25-30 degrees C (77-86 degrees F)
where to get, USA: Edmund Scientific


Nitinol

.006 diameter: shape change at 90 degrees C
.008 diameter: shape change at 90 degrees C
.01 diameter: shape change at 90 degrees C
where to get, USA: Robot Shop


Other Material Info

HLT wiki