Those of us who are used to soldering know that soldering flux greatly improves the ability of the tin to flow to the places where we need it to be in order to ensure a good electrical connection, or to hold two parts together in the case of scale modeling, plumbing etc.
The traditional solution is using a paste or liquid flux, but you need a tool to place it in the correct spot, and typically it comes in bulky pots.
If you are looking for a more convenient solution, this 10ml pen applicator with specially designed felt tip is perfect for you. Extremely portable, it doesnt leave residue that could interfere with electrical connections, and it eliminates the need for cleaning excess flux.
We have to prepare each shipment individually as they are ordered, so allow us in 3-4 weeks for it to arrive in USA/Canada (to be safe) and 3-6 weeks rest of the world, though thy are usually delivered much faster.