Non-dry(Standard) vs Dry Treated Ropes

There are some differences (obviously) about the make up of non-dry (aka standard) treated ropes versus the dry treated ropes.  These also have different uses. (obviously)  Here is a nice, simple look on the uses and the make up of thus said ropes.

DRY

Dry treated are best for alpine, mountaineering, and ice climbs



Simply put it is a water-resistant coating that is on the sheath (outside) and the core (inside) of the rope.  It helps to deflect water molecules on both said areas.  This in-turn will help the rope last longer by staying dynamic and keeping the original strength when first taken out of the package.  The dry treatment actually makes the rope run smooth as well, giving it an advantage over the non-dry.  Dry treated ropes tend to last longer than non-dry because it does not have the sponge-like properties of non-dry.

Ideal use:  You can use them for any climbing, but they are REALLY designed for ice climbing, mountaineering, and/or alpine climbing.

NON-DRY

Ropes are exactly the same except for the dry treatment.  These ropes tend to soak up water like a sponge, deteriorating it quicker. They are much LESS expensive than a dry treated rope, but if you find a dry treated rope at about the same price as these, might as well get the dry treated.

Ideal use: Top roping, sport climbing, rappelling because you will not be in the elements when doing these things. (except for maybe rappelling)  Highly suggested for the weekend warrior and/or the sport/trad climber.