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Multi-Flow Technical Properties

Drainage Core

Property Test Method Value
Thickness, inches ASTM D-1777 1.0
Flow Rate, gpm/ft * ASTM D-4716 29
Compressive Strength, psf
(sand method)
ASTM D-1621 6000

Perforations / sq. ft.

            --- > 300

Geo-Textile Filter

Property Test Method Value
Weight (oz/sq2) ASTM D-3776 4
Tensile Strength, lb. ASTM D-4632 100
Elongation, % ASTM D-4632 50
Puncture, lb. ASTM D-4833 50
Mullen Burst, psi ASTM D-3786 200
Trapezoidal Tear, lb. ASTM D-4533 42
Coefficient of Perm, cm/sec ASTM D-4491 0.1
Flow Rate, gpm/ft2 ASTM D-4491 100
Permittivity, 1/sec. ASTM D-4491 1.8
A.O.S. Max US Std Sieve ASTM D-4751 70
UV Stability,500 hrs., % ASTM D-4355 70
Seam Strength, lb./ft ASTM D-4595 100
Fungus ASTM G-21 No Growth

All values given represent minimum average roll values

* Horizontal Installation, gradient = 0.1, pressure = 10 psi for 100 hours