Here is a picture that show how effective a solder dip can be https://nepp.nasa.gov/whisker/photos/pom/2004april.htm https://nepp.nasa.gov/whisker/photos/pom/20

Here is a picture that show how effective a solder dip can be https://nepp.nasa.gov/whisker/photos/pom/2004april.htm https://nepp.nasa.gov/whisker/photos/pom/2004april.htm About leaded solder and the environment: "Current alternatives are worse for the environment",page16 https://nepp.nasa.gov/whisker./reference/tech_papers/2011-kostic-Pb-free.pdf https://nepp.nasa.gov/whisker./reference/tech_papers/2011-ko...