– What is the diameter of TOUGH-GRID Ultra-Cord (UHMWPE / Dyneema­®) –
Our Ultra-High Molecular Weight Polyethylene is 3/16″ in diameter but we may sell larger or smaller diameter braids in the future.

– How much stretch does TOUGH-GRID Ultra-Cord (UHMWPE / Dyneema®) have? –
UHMWPE has very little stretch. Testing shows that it will only elongate about 3%. The reason this is so important is “stored energy”… steel cables and chains store massive amounts of energy and when they break, they can whip around and cause serious and life-threatening injuries. Ultra-Cord – if you can break it 😉 – falls harmlessly to the ground instead of injuring bystanders.

– What are the results of the tensile strength test of TOUGH-GRID Ultra-Cord? –
UHMWPE is around 15 times stronger than steel by weight and a 3/16″ diameter braid of UHMWPE has an average break strength of 5,000lbs! You won’t find anything stronger with less stretch. It’s also about 40% stronger than Kevlar©.

What sort of temperatures can Ultra-Cord be subjected to?
UHMWPE has a melting point of around 266°F to 277°F. It is not advisable to use UHMWPE fibres at temperatures exceeding 176°F to 212°F for long periods of time. Ultra-Cord is extremely durable in the cold and only becomes brittle at temperatures below −240°F!

– Is Your UHMWPE Weather or UV Resistant? –
UHMWPE embodies all the characteristics of high-density polyethylene (HDPE) with the added traits of being resistant to concentrated acids and alkalis as well as numerous organic solvents. It is highly resistant to corrosive chemicals, has extremely low moisture absorption, and a very low coefficient of friction. It is also self-lubricating, and is highly resistant to abrasion. UHMWPE is generally considered to be 15 times more resistant to abrasion than carbon steel. Its coefficient of friction is significantly lower than that of nylon and acetal, and is comparable to that of polytetrafluoroethylene (PTFE / Teflon), but UHMWPE has better abrasion resistance than PTFE / Teflon.

– Will this cord become permanently twisted/curled?
Nope! One of the other great properties of Ultra-Cord is that it has no memory. Steel cable will become curled and kinked over time if wrapped around a drum or stored improperly and that will never happen with Ultra-Cord.

– Is Ultra-Cord considered Light-Weight? –
Definitely… it’s the only “super fiber” that has a density below 1.0, meaning it can actually float on water!

– What are the Common Uses for Ultra-Cord or UHMWP? –
Great for camping, towing, guy lines, snare cord, replacement bowstring, tying things down, emergency/disaster prep, and much more. There are virtually unlimited uses!

– How Do I Cut UHMWP without Causing It to Fray? –
UHMWP is a unique fiber that is harder to seal than paracord. You can cut it with scissors, a razor, or any other knife, but you’ll also want to use a 1/4″ to 1/8″ heat shrink tube to seal the ends and prevent fraying. Some have used super glue to prevent fraying as well. We provide a 1 foot section of double-walled, adhesive mil-spec shrink tube with every 100Ft. roll of Ultra-Cord. Many people like to pre-cut and seal sections to store in their boats, houses, or vehicles.