I get where you’re coming from on not tossing cords at the first sign of green. I’ve done the same—scraped off the corrosion, checked for any real damage, and wrapped it up tight. If the copper’s still got some shine under the green, I figure it’s got some life left. But I did have one extension cord that looked fine on the outside, only to find a whole section inside was basically dust after a few years in a damp shed. That was a wake-up call.
Liquid electrical tape is hit or miss for me too. Used it on a rooftop junction box once (bad idea), and after one summer storm, it peeled right off. Now I stick to heat-shrink or proper connectors for anything exposed to weather. Indoors, liquid tape seems to hold up better, but I still don’t trust it for anything critical.
I’m guilty of the “eyeball test” too, but after that cord incident, I started checking resistance with a meter if there’s any doubt. Takes an extra minute but beats rewiring after something fails mid-job... or worse.
I get the urge to keep cords going as long as possible, but I’m starting to wonder if it’s worth the risk. I had a lamp cord that looked totally fine—no green, no cracks—but it randomly started sparking at the plug. Made me rethink my “if it looks okay, it’s okay” approach. Do you ever just toss cords if they’re old, even if they pass the meter test? I’m still figuring out where to draw the line between being thrifty and being safe.
Also, is heat-shrink easy to use for someone who’s never tried it? I’ve only ever done electrical tape, and it always feels a bit sketchy...
I know the feeling—sometimes I look at an old cord and think, “eh, it’s survived this long…” but then I remember how fast things can go sideways. If there’s any sparking or weirdness, I pitch it, no matter how good it looks. As for heat-shrink, it’s actually way easier than I expected. Just cut a piece, slip it on, hit it with a hair dryer or lighter (carefully), and it tightens up. Definitely feels less sketchy than electrical tape flapping around.
As for heat-shrink, it’s actually way easier than I expected. Just cut a piece, slip it on, hit it with a hair dryer or lighter (carefully), and it tightens up.
Yeah, I was skeptical about heat-shrink at first—figured it’d be more hassle than it’s worth. But you’re right, it’s surprisingly simple and holds up way better than tape. Still, if the cord’s got any real damage, I’m with you... not worth the risk.
Still, if the cord’s got any real damage, I’m with you... not worth the risk.
I get where you’re coming from, but I’ve actually had decent luck patching up minor nicks with heat-shrink, especially on low-voltage stuff. For anything with deeper cuts or exposed wires though, I’d rather just replace the whole cord. Sometimes it’s tempting to do a quick fix, but I’ve seen too many “temporary” repairs turn into bigger headaches down the line. If you’re dealing with power tools or extension cords, I’d say err on the side of caution—no sense risking a short or worse.
