The Flex-I-File “Touch-N-Flow” (Photo 1) is the ultimate capillary action gluing system. Nothing else I know can get cement into hard to reach spots with such accuracy. It enables a modeler to put solvent cement exactly where needed, with very little chance of missing the target and marring an outside surface.
The #7000 system is composed of three components (Photo 2): A bottle of thin Plast-I-Weld solvent cement, a squeeze bottle, the Touch-N-Flow applicator, along with an instruction sheet. The Touch-N-Flow is a thin glass tube with a very fine needle applicator at one end. The squeeze bottle is used to pull the thin solvent cement up into the tube. Once the cement is in the applicator, a touch of the end of the needle releases cement.