Forum Discussion

Naio's avatar
Naio
Explorer II
Nov 02, 2018

Buying/evaluating a used Harbor Freight hydraulic crimper?

Somebody has one for sale for half price in the town that I'm in, says it was only used a couple times. time2roll,I see from a search here that you bought one. Do you still like it? Reading the rev...
fj12ryder's avatar
fj12ryder
Explorer III
Nov 03, 2018
"Mere oxygen turns copper dark over time." But doesn't that "patina" actually protect the underlying copper? As opposed to iron oxide, rust, which just flakes off. There are other issues involved I'm sure, but the fact that copper turns dark doesn't indicate the copper is damaged.

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