Actually, this type is the most used in the battery industry. The basis material is a polyester spunbond non-woven that presents a lot of bonding points. The bonding points together with an impregnation of 15 % with synthetic resin give the stiffness to the gauntlet.

The typical value of the electric resistance is 0.13 Ω*cm².


To offer a second product and in order to not depend of one supplier, Mecondor has developed a new type of nonwoven, the NWS2. The production technique is called spunlace : the polyester fibers are densified by water jet and the result is a tridimensional structure that offers very big porosity and especially pores of same size and dispersed in a very uniform way. The filtration capacity is extremely good and this structure prevents the loss of active material that is very important for the lifetime of the battery.

Avec une teneur en résine acrylique de ±28 %, la rigidité de ces gaines est très bonne.

The fact that there are no bonding points increases the free surface in an important way. Compared to the NW type where 12% of the surface is sealed by the bonding points, the electric resistance is the lowest ever reached with a gauntlet (typical value=0.10 Ω*cm²). This certainly increases the performance of the battery.


The basis material is the same that is used for the NWS2 type but the resin content comes up to 38%. The result is a better resistance to oxidation that should be beneficial for the lifetime of the battery. The rigidity is exceptionally high and the resistance to oxidation is very good: this should increase the number of cycles in a significant way.
The high rigidity makes the filling easier at last for certain filling process. The electric resistance suffers a little but the typical value of 0.13 Ω*cm² is still very low and the initial capacity of the battery should not be affected.