The new MAGNUM PLUS rubber bands by CETMA COMPOSITES are made from materials of the highest quality and purity.
This is the first rubber on the market without additives so that you can experience the real properties of pure natural rubber. In fact, all commercial rubber is made with various additives, e.g. anti-UV additives that also change the mechanical performance of the rubber. In contrast, our rubber is pure but with a thin outer layer that is UV-blocking (black layer).
So for the first time you can experience the performance of natural rubber!!!

They are designed and manufactured with a 4-layer structure:
1. the first layer, starting from the outside towards the inside, is an iridescent metallic copper-coloured layer that takes on the colour of the seabed, it has the function of camouflage and protection of the elastic;
2. The second layer, black in colour, serves to protect the inner layers from ultraviolet rays so that the PURE NATURAL latex inside does not deteriorate over time.
3. The third layer, grey in colour, is made of higher modulus latex to increase the elastic’s resistance to binding.
4. The last layer, the inner one, is made of pure latex.

Thanks to the barrier layers we have inserted on the outside, pure latex can be used without any additives. This feature makes our product perform better than other traditional elastics and allows the elastic’s performance to be maintained over time.
The outer layers are, however, made of latex with special additives that not only fulfil their specific functions, but also contribute to the elastic’s reactivity.

In addition, they are available with significantly smaller inner hole diameters than the traditional ones (only 0.9 mm), making it possible to have a greater quantity of rubber and consequently greater elastic strength for the same outer diameter.
Their internal structure makes them very high-performance at different elongation factors, keeping the load constant with the elastic in tension even at elongations of up to 350%.

The table shows the forces developed for different elongation factors, these data are useful for setting up your speargun, but we strongly suggest you try with a 300% elongation, already at this factor you will appreciate the enormous power and stability developed !!!

Costs:
ø14mm € 25.00/meter
ø14mm € 25,00/meter
ø16mm € 28.00/meter
ø17.5mm € 30,00/meter
ø19mm € 30,00/meter