Adhesives and Epoxies Q&A
-
Are methanol, ethanol, acetone, or acetonitrile FDA approved?Answered January 25th, 2010 by Expert:Methanol, ethanol, acetone, or acetonitrile are generally not FDA approved. These solvents bond plastics together by melting them and allowing them to intermingle. As the solvent evaporates, the plastics harden to form a strong weld. The choice of which grade of solvent to use is up to the medical device manufacturer. Higher-purity grades are more expensive than lower-purity grades. Since the solvent evaporates and does not remain in the bond line, it is not normally tested for biocompatibility.



