Abstract
Barrel finishing of cured base resin samples using the centrifugal barrel machine with alumina media (RK®, UC®, UP®, and SA®) and organic media(B®) was performed and surface texture was examined. Crushed massive alumina media RK with a sharp edge showed the largest amount of polishing but the surface texture was found to be rough. Sintered globular media SA showed small amount of polishing and the surface texture could not be improved. Organic media B showed similar amount of polishing to sintered almina media UC and UP, and the surface texture was more efficiently improved than alumina media, and had a glossy surface. Barrel finishing with organic media was found useful to obtain a smooth and glossy surface of base resins.
