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Sterling Oplux vs. Teufelberger Resc Tech 8mm

Dyneema needs to flatten if running over an edge to retain the most strength. Keeping it round like in a pulley sheave makes it weaker. The flattening from the knot is normal and doesn’t make it weaker. I was able to pinch new Oplux down to the example on the left from previous page.
 
This is a good thread. I wasn't aware of the pinch test either. So let me ask a question. I'm having a transformer made. The bridge is going to attach to the D rings w/ a girth hitch. Is this bad over time? Which of these ropes would be better?
 
Brocky said:
Dyneema needs to flatten if running over an edge to retain the most strength. Keeping it round like in a pulley sheave makes it weaker. The flattening from the knot is normal and doesn’t make it weaker. I was able to pinch new Oplux down to the example on the left from previous page.
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So you’re saying where the rope flattens out in the areas it was knotted is normal for this make of rope? And it does not mean the core is compromised and unsafe? So is there another form a pinch test for these types of ropes if this normal pinch does not apply?
 
Weldabeast said:
All I know is that there is a small area of the rope that feels and behaves differently than the rest of the whole rope... Maybe it's still good but I'm going to cut it out just to make me feel better
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I am with ya. At less than $2 per foot, I can live with losing a foot or two every season for some peace of mind. In any sense, this has really opened my eyes to learning how to use and inspect this climbing equipment. It's not really a buy once cry once type of thing, it's more of a sacrificial piece of gear that has a limited lifespan for sure.
 
Standard mantra to pacify any liability worries of lawyers. There has been testing proving rope is still good for more years, but fully agree if a concern to chop off.
Anybody save the piece they chopped off to take a look at core?
 
Brocky said:
Standard mantra to pacify any liability worries of lawyers. There has been testing proving rope is still good for more years, but fully agree if a concern to chop off.
Anybody save the piece they chopped off to take a look at core?
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Good question, I haven't actually chopped anything off yet, but will definitely check it and upload a pic.
 
I'm not the right person to ask.... Never had a rope bridge. If it passes pinch test it should be good to go I would assume.... All these saddle manufactures are using it
 
I was supposed to post a pic but forgot. I had about 60 hunts on my oplux bridge and tether and they definitely didn’t pass the traditional dynamic rope pinch test. I cut it apart and took the core out and honestly everything still looked totally intact. Core looked solid. It was just that the pressure on the knotted areas had totally flattened the rope in those places. This didn’t really happen with my lineman I’m thinking cuz they never bears much weight. I’ve since just decided to replace my bridge, tether and lineman’s with research tech. Likely will just replace these ropes mostly every season since I hunt so much and the ropes are relatively cheap compared to hospital bills.
 
JoyRyd said:
THREAD REVIVAL: So, can Teufelberger Resc. Tech 8mm be used "safely" for a bridge rope if it passes the pinch test?
@Brocky , @Weldabeast
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Yes, the only thing not to use for a bridge would be something with an aramid core, Kevlar, Technora, and Twaron. UltraTech was used when bridges first appeared, and some broke while in use. Most of the wear happens in the center where the weight is most of the time. A loose cover would allow the dyneema core to flatten easily, the pinch test does apply to these ropes, feeling for thinning would be better to determine wear.
 
woodsdog2 said:
Ugh. I'm going back to my climbing tree stand!!!! :eek:
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Was it the ropes and squeaky pulleys, the fact there's just no way those things can be comfortable, or the unfortunate fact that its nearly impossible to take off ur pants and underwear while in the process of saddle hunting that drove the final nail in the coffin?
 
I am not using the two ropes mentioned in the OP question but for me the Sterling HTP on Atlantic Rigging is a great price and replacing my tether, linesman and rappel rope each season is justified for its low cost and peace of mind. However, checking your ropes each hunt is still mandatory in my mind no matter how much use they've had.
 
Weldabeast said:
Was it the ropes and squeaky pulleys, the fact there's just no way those things can be comfortable, or the unfortunate fact that its nearly impossible to take off ur pants and underwear while in the process of saddle hunting that drove the final nail in the coffin?
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Hey man, I'm always looking for access. Back when I was a "bachen'" it, my buddies would call and the first thing they'd ask..... "You got yur pants on?"
 
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