Automated and manual fluid dispensers and accessories therefor, namely dispensing syringes, receiver heads, dispensing tips, dispenser cartridges, plungers, nozzles, needle adapters, end caps, seals, two component cartridge packaging and mixing kits, comprised of a cartridge, a rod with piston, a mix head, a cap and a tapped barrier, mix heads and rods, cartridge dispensing guns, plunger seals, flow restrictors, retaining nuts, dispensing mixers, fluid dispensing valves, dispensing pens, valves, dispensing controllers, pressure dispensers, fluid line assemblies, adapters, for use in electronic assembly and repair, and tool fabrication, assembly and encapsulation