IMG_5222
I picked up these Irwin pipe clamps from Anawalt Lumber on my first visit there. I also grabbed the galvanized pipes there in 2' sections. I have since learned that pipe clamps call for black bar. I did some tests, and found out why. The galvanization on galvanized pipes immediately breaks, and flakes up into serrated teeth when you use pipe clamps on them with any real pressure. This creates a rasp-like surface that mars up your wood quite badly. It happens with black bar, too, but to a far lesser extent.
I'm sure if I were to continue to use these, the galvanization would only get worse, and worse, with bits flaking away, and an increasingly rough surface. I switched to black pipe. I'll find another use for these.
IMG_5222
I picked up these Irwin pipe clamps from Anawalt Lumber on my first visit there. I also grabbed the galvanized pipes there in 2' sections. I have since learned that pipe clamps call for black bar. I did some tests, and found out why. The galvanization on galvanized pipes immediately breaks, and flakes up into serrated teeth when you use pipe clamps on them with any real pressure. This creates a rasp-like surface that mars up your wood quite badly. It happens with black bar, too, but to a far lesser extent.
I'm sure if I were to continue to use these, the galvanization would only get worse, and worse, with bits flaking away, and an increasingly rough surface. I switched to black pipe. I'll find another use for these.