Raw materials
Mammut uses two materials to produce slings. The first is the light Dyneema®, boasting a low weight and very high strength. The other is sturdy polyamide, which we also use to produce our high-quality ropes.
Polyethylene = Dyneema®

Dyneema® (manufacturer's name)
is a polyethylene fibre. This extremely durable
fibre offers high resistance to abrasion, moisture and chemicals.
Dyneema® is exceptionally strong and light and can therefore be used for
a very wide range of applications.
This is because polyethylene is
five times stronger than polyamide. Lower width polyethylene slings can
therefore be produced offering equivalent strength. In addition to
polyethylene's higher breaking resistance, its cut resistance and edge
stability are significantly higher than those of polyamide. A further
advantage of Dyneema® is that it does not absorb water.
However, the
drawback is its lower melting point which is
increasing the danger of friction burns.
Due to their very smooth
surface, polyethylene or blended fabric slings must not be knotted.
Even under the lightest loads, knots in slings made from these
materials become loose and they are therefore sold only as stitched
slings (=express slings/webbing slings).
Polyamide

Synthetic
polyamide or PA (abbreviation of PolyAmide), is the oldest truly
practical synthetic fibre and is still one of the leading man-made
fibres in terms of quantity.
Polyamide is extremely tear and shear
resistant, elastic and durable. Its melting point is considerably higher that of polyethylene, and it boasts slightly better
UV resistance than Dyneema.
However, polyamide absorbs around 4%
of its own weight in water, reducing the strength of wet fibres. In
freezing conditions, the performance of an icy polyamide sling can fall
be half.
Traditional pure polyamide (nylon) webbing is available in widths of 13-26 mm. It can be purchased by the metre or in stitched form as a sling.
The differences from the first sight
| Properties | Dyneema (PE-HD) | Polyamide (PA6) |
| Water absorption | 0% | 4% |
| Knot strength | 40-60% | 60-80% |
| Melting point | 130°C | 220°C |
| Breaking elongation | 3-4% | 15-25% |
| Specific gravity | 0.97 g/cm3 (floatable) | 1.14 g/cm3 |
| UV resistance | moderate | good |
| Abrasion resistance | good | very good |






