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FlexDry provides long-term protection against damp. It reduces high relative humidity in enclosed spaces with little or no ventilation and offers reliable protection against mould, corrosion (rust), mildew stains, misted-up windows and unpleasant odours.

FlexDry is versatile and is suitable for use in, amongst other things:

• Boats and caravans
  
• Sheds, garden sheds, lofts, cellars and crawl spaces
  
• Distribution boards, safes, washrooms
  
• Guest rooms, cloakrooms or other enclosed spaces with damp problems
  

Thanks to its compact design, FlexDry can be positioned flexibly and discreetly.

The FlexDry can absorb up to 200 % of its own weight in moisture. Depending on the environment, it can remain effective for several months.

The moisture it absorbs is converted into a gel; no liquid is released at any time. Thanks to its compact and flexible design, the FlexDry can be discreetly placed almost anywhere.

Yes, because FlexDry is made up of harmless calcium chloride and starch granules. It can therefore be disposed of without any problems in the normal household waste.

A block will only function reliably if it is fitted in such a way that it can move freely and align itself automatically with the direction of pull of the rope or wire rope. This is the only way to ensure that the load runs smoothly over the sheave.

If, on the other hand, the block is fitted in such a way that it cannot align itself freely, there is a risk of it becoming jammed. In this case, the loaded rope may press against the block’s jaw, causing damage to the block. In the worst-case scenario, the rope becomes trapped between the suspension and the sheave and jams.

Such jamming poses a significant safety risk to the vessel and its crew. It is therefore essential that every block installation is carefully planned, correctly carried out and regularly inspected.

Sprenger offers the best value for money on the market. In tests carried out by the renowned magazines YACHT and SEGELN, Sprenger blocks consistently achieved top marks or were named test winners. The tests assessed working and breaking loads, the accuracy of the catalogue specifications against actual values, and corrosion resistance.

An impressive example of their quality: the well-known sailor Wilfried Erdmann circumnavigated the globe in around 330 days in 1984. Some 20 years later, he repeated his solo circumnavigation of the globe, this time even sailing against the prevailing wind directions – and used largely the same Sprenger blocks as on his first voyage. It is hard to imagine a better testament to durability and reliability.

Sprenger fittings are also held in the highest regard by cruising and regatta sailors – their quality and durability make them a popular choice for professionals and recreational sailors alike.