Another area of confusion can be heat-setting
and pre-stretching. Every Marlow D12 Dyneema core is pre-stretched to reduce “bedding-in” elongation, limit the amount of elastic elongation and improve rope strength. Pre-stretching involves the application of heat during the process and is sometimes known as heat-setting, although simply applying heat does not have the same effect.
Marlow have been pre-stretching Dyneema cores for over 25 years and that experience means we know exactly how to improve a rope’s performance without compromising flexibility or damaging the fibre.
Marlow’s MAX Technology takes pre-stretching to a new level by using a precisely controlled process to take Dyneema to the limits of heat and load during the Pre-Stretching process – it could be called “Super Pre-Stretching”.
ropes were introduced to offer the ultimate in strength realization from Dyneema and to virtually eliminate elastic and “bedding-in” elongation.
D12 MAX ropes are stronger size for size than standard D12 – the MAX process packs more Dyneema into the same diameter, hence the extra strength. However, D12 MAX ropes are stiffer and harder than the standard pre-stretched D12 ropes.