J-DRain 400/420

J-DRain 400 consists of a high flow dimpled drainage core formed from a medium duty impermeable polymeric sheet cuspated under heat and pressure then bonded to a layer of non-woven filter fabric. The filter fabric retains soil and sand particles or freshly placed concrete or grout, allowing filtered water to pass into the drainage core. Collected water is then conveyed to the J-DRain SWD collection system.

J-DRain 400 performs a multi-faceted role by providing protection for waterproofing systems and managing sub-surface water around building foundations. J-DRain 420 has an added membrane protective film on the back side.

PROPERTY	TEST METHOD	ENGLISH	METRIC
Compressive Strength - Core	ASTM D-1621	15,000 psf	718 kNm2
Thickness - Core	ASTM D-1777	.40 in	10.16 mm
Flow - Core	ASTM D-4716	21 g/min/ft	260 L/min/m
Flow - Fabric	ASTM D-4491	140 g/min/ft2	5,704 L/min/m2
Puncture - Fabric	ASTM D-4833	65 lbs	.30 kN
Apparent Opening Size - Fabric	ASTM D-4751	70 US Sieve	.212 mm
Grab Tensile - Fabric	ASTM D-4632	100 lbs	.45 kN

ROLL SIZE	AREA	WEIGHT
4' x 50'	200 SF	39/41 lbs
6.5' x 50'	325 SF	63/66 lbs
8.5' x 50'	425 SF	82/85 lbs