Environmentally friendly (eco-friendly) PVD that has an equivalent discharge capacity to the conventional PVD.

Nonaldrain is a free form composite structure that has separate filters and materials.
It is highly capable of collecting water as well as tacking land subsidence.


PropertiesUnitSpecificationTest Method
DimensionThicknessmm3.0 ± 0.5
Widthmm100 ± 5.0
DrainTensile StrengthkN/width> 2.0*1
Discharge Capacity
at straight 350kPa,
i= 1.0
m/s> 1.0 x 10-2*2
FilterPermeabilitym/s> 1.0×10-4*3
*1 Sample Size – 10cm(width)x40cm(length), Zipper interval – 25cm, Speed – 500mm/min
*2 Sample Size – 10cm(width)x20cm(length)
  Conformity with PBD Reseach Group Method (Modified Triaxial Cell Method)
*3 Permeability Cross Section-4.0cm2, Thikcess-0.035cm (average), Water Head Difference-25cm,
 Duration of Permeability -15 seconds, Conformity with JIS A 1218(1933)

* These data are offered only helpful suggestion for experimental processing you may conduct.
* Revision might be made without notice
* The colors of the products are subject to change.

Nonaldrain is a Japan BioPlastic Association certified “Green Plastics” and “Biomass plastics” product.
Japan BioPlastic Association


Nonaldrain sectional plan (Cross-section diagram)