The PosiDot® valve is able to meter, mix, and dispense small shots from 0.005 cc to 5.0 cc while maintaining precise ratio and shot size repeatability. It is ideal for bonding canulas, sealing blood filters, potting electronic diagnostic devices, and assembling life assist devices including pacemakers, drug delivery systems, and other implantable units. The PosiDot can handle low to paste viscosity materials and ratios from 1:1 to 25:1.