composition natural gum such as copal, rosin, or synthetic resin 10% dissolved in an organic solvent such as alcohol, acetone or ether 90%
{"Image DocumentName": "Composition: Natural gum such as copal, rosin, or synthetic resin (10%) dissolved in an organic solvent such as alcohol, acetone or ether (90%)", "Image ImageDescription": "The copal rosin is dissolved in the ether, when the ether evaporates, a thin film of resin is left on the surface of the cavity.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}