559 welding aid paste - a traditional and
classic type of welding aid paste, halogen-free, low viscosity, yellow color,
and transparent residue after welding. It is used for welding conventional
components or disassembling and welding circuit board components.

223 welding aid paste is a kind of
relatively viscous welding aid paste. Its purpose is the same as 559, which is
more viscous than 559. It is used in different process applications.

558 welding aid paste is a milky white
welding aid paste. Its purpose is the same as that of 559. There is no residue
in welding, halogen-free and low smoke. The welded joint is brighter than 559.

808 welding aid paste is a kind of enhanced
welding aid paste. Its welding ability and anti-oxidation ability are stronger
than those of the above models. It is used on some second-hand components with
serious oxidation, and for some products that are difficult to tin. After
welding, it is necessary to clean the periphery of welding with cleaning agent