STROFT® is a monofilament nylon that has been formulated and treated during production to produce a high-strength, controlled-stretch, material. A typical example is the 0.20 mm (.008inch, 3X) STROFT® with a strength of 4.20 kg (9.2 lbs).

This is 30% stronger than some other popular high-strength nylons.
STROFT® also provides superior knot strength. STROFT® GTM is produced using a multi-level tempering (heat-treatment) process to remove material stresses formed during extrusion, cooling, and drawing.

Simultaneously, silicon and PTFE (a type of fluorocarbon) molecules are diffused into the surface to increase tensile strength and maintain suppleness.

The extensive development behind this process yielded a product declared the overall best fishing line by a German body similar to Underwriter's Laboratory in North America.

STROFT GTM is the number 1 monofilament fishing line. The TÜV in Munich (Germanys leading standards organisation) confirmed that STROFT GTM was the best line tested. The main aim of the tuning process that STROFT GTM undergoes is to maximise the lilnes breaking strain whilst improving its highly elastic suppleness. This process is constantly being improved, but it is basically a multilevel temperature treatment. Hence the name GTM (German: Getempertes Monofil, English: tempered monofilament). At the same time we are continally improving the mix of polymers that are used. Once certain developments in process or materials have proven themselves, the flow into the production process; guaranteeing the best line that is technically possible to achieve. In this way, over the years, we have been able to adjust the refining and tuning process so that characteristics such as dynamc friction, adhesion, surface hardness, surface smoothness, elastic limit, breaking strength, minimal-load elongation, strike elongation, fighting elongation, sensibility, feed back, memory, flexibility and softness have been persistently improved. 

All this makes STROFT GTM the perfect fishing line whenever knot strength in combination with all the other attbributes of a top quality fishing line are in demand. STROFT GTM is the right fishing line for all anglers who only want the best quality, namely the No. 1.