Trying to lighten my load by a few ounces....anyone ever used 3/4" webbing for tree straps?
I have 24 ft from REI climbing department, I weigh 160lbs....
thanks,
mike
Trying to lighten my load by a few ounces....anyone ever used 3/4" webbing for tree straps?
I have 24 ft from REI climbing department, I weigh 160lbs....
thanks,
mike
Check with REI on the breaking strength. Best rule of thumb is 10-to-1.
Also, if it's nylon, it will stretch. Not good.
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nylon= big nono. Stretches... and stretches.. and stretches. Ive dropped almost two feet over the course of the night back when i used nylon. If you want light weight, try polypropylene as it is (i believe) lighter weight than poleyester.
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so......the stuff I got at REI is nylon??? dang if that is the case....
Taken from http://www.strapworks.com website:
3/4 Inch Flat Nylon facts:
Thickness of 0.070 to 0.075 of an inch
Breaking strength of 2375 pounds
Melting point of 480 degrees Fahrenheit
3/4 Inch Lightweight Polypropylene facts:
Thickness of 0.040 of an inch
Breaking strength of 450 pounds
Melting point of 330 degrees Fahrenheit
3/4 Inch Heavyweight Polypropylene facts:
Thickness of 0.060 of an inch
Breaking strength of 675 pounds
Melting point of 330 degrees Fahrenheit
Patterned Polyester facts:
Thickness of 0.04 to 0.065 of an inch
Breaking strength of 2598 pounds
Melting point of 500 degree fahrenheit
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I made some 20mm wide tree straps from 750kg mil spec polyester webbing for wrapping round the big old gnarly caledonian pines I regularly hang from.
No stretch detectable and 14g/metre.
I don't use them on soft barked smaller trees though, they mark.
great stats on the webbing.....
It looks like I got the wrong stuff....
This is a great question. Whats the thinnest lightest webbing for tree straps that can handle the stress and load.
For example on strapworks.com it lists polyester webbing; the smallest is 3/8 inch. thickness of 0.040 of an inch, breaking strength 1500 pounds.
I'm thinking further weight savings is possible by using longer amsteel whoopies and shorter webbing for tree straps. I can avoid using metal biners to clip the webbing, and be sure the toggles are light as possible.
Last edited by dimeotane; 04-02-2012 at 21:19.
Let's remember that the 1" width webbing was selected to protect the tree, not because it was required for strength. 3/8" webbing may not protect a thin bark tree.
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