Impregnating Plastics with Carbon Dioxide (image) Fraunhofer-Gesellschaft Share Print E-Mail Caption This propeller was dyed yellow in only five minutes at 90 degrees C and 200 bar. At this pressure, the yellow dye powder dissolved in the CO2 which transferred it into the plastic. Credit Fraunhofer UMSICHT Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.