2
\$\begingroup\$

I am looking for a good method to clean used solder paste needles immediately after usage. I know they are for one time use, but at this moment I have to clean the needles.

Currently, I clean them in diluent using a thin wire to get all the paste out. Is there a better way to clean used solder paste needles?

\$\endgroup\$
4
  • \$\begingroup\$ Have you tried to intake up a small amount of alcohol and seal tip then return to fridge? Then release on 1st use. \$\endgroup\$
    – D.A.S.
    Commented Nov 26, 2017 at 16:56
  • \$\begingroup\$ No, I haven't. Please corect me if I misunderstood: after usage, I dip the needle (which has solder paste inside) in alchool, seal the tips and refrigerate? So this way, the paste will not harden and I could reuse the needle right away (no cleaning necessary) when I need it? \$\endgroup\$
    – Cristian M
    Commented Nov 26, 2017 at 17:42
  • \$\begingroup\$ That's what I'm thinking .. intake some fluid.... to prevent air leakage to paste for some short period. Or use compatible liquid flux from a spoon. Then expel when using. \$\endgroup\$
    – D.A.S.
    Commented Nov 26, 2017 at 17:57
  • \$\begingroup\$ Thanks! I will try your suggestion. You could post the comment as an answer so I can mark it. \$\endgroup\$
    – Cristian M
    Commented Nov 26, 2017 at 18:32

1 Answer 1

Reset to default
1
\$\begingroup\$

In order to seal the solder paste from air try to intake a drop of liquid flux into the needle, seal tip then return to fridge. Then release flux on 1st use.

You might also keep needle in a container permanently mounted to support needle with a small amount of liquid flux to prevent air exposure during use between applications.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.