online article - A closer look at the “cleaner” plastic

See article: http://www.cleanproduction.org/Steps.BioSociety.Emerging.Nanotechnology.php

Check out the article here: http://www.popsci.com/diy/article/2011-09/you-built-what-seven-foot-high-3-d-printer-uses-sun-transform-s...

see more:  http://www.lime.org.uk/products/limecrete-and-sublime/