The Balanced Beam Coin Adapter is a device originally developed as a quality control tool for determining the ease of removability of special "scratch-off" coatings applied to lottery tickets. It has been found to be equally useful in testing properties of paint, coatings, and other materials that include paper and paper products. The Coin Adapter is a rod fixture that can hold a coin in its chuck to be used as a scratching tool. The adapter clamp can accommodate a coin (Nickle, Dime, Euro, etc.), and allows the user to test the resistance of his coatings to scratch and mar from the milled edge of the coin.
In adhesion testing, sometimes the edge of a Hoffman type stylus may be too sharp, and the loop or needle stylus may not be sharp enough. In this case, the edge of a coin may have just the right edge. Not only will a coin provide a different type of cutting edge, but the adapter also allows the user to insert practically any type of test coupon desired (such as a thin wafer), as long as it has roughly the same thickness as a coin. When using the Coin Adapter, employ the normal operating procedure. |