3 ms·

how does "black foam" rot the pins off chips?

• tyingq 7y ago
  I'd read a discussion some time ago that guessed it was the adipic acid present in some types of polyurethane foam. Polyethylene foam doesn't seem to have the issue.
  • bullen 7y ago
    Ok, but how can you tell the two apart?
    • tyingq 7y ago
      Springy/spongy/wet/heavy feeling vs mostly stiff/dry/light.
      • bullen 7y ago
        Ok, so stiff/dry/light is polyethylene = good?
        • tyingq 7y ago
          Yes.
• biggieshellz 7y ago
  See http://www.retrolinear.com/new-stuff/dreaded-foam.aspx http://www.retrolinear.com/new-stuff/dreaded-foam.aspx -- the same foam was used inside Hammond organs and Moog synths, with similar results.