Naphrax is a synthetic resin. Because of its surface contact with the diatom frustules, its resolution qualities are equivalent to that of a mountant with a refractive index of 1.74 at the least.
Naphrax will need Toluene added to use. We offer both, Naphrax Export (no Toluene added) and Naphrax with Toluene ready to use (this may have shipping restrictions)
This item contains one 200 ml bottle of Naphrax - no Toluene
Phycotech, Inc is the Exclusive North American Distributor