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WR Grace Hydroduct 660 4' x 50' Horizontal Drain

Brand: WR Grace Mfg#: 5530
Product#: 457GHD660
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Hydroduct® 660 is a highly robust, preformed, 0.433 in. (11 mm) thick geocomposite drainage sheet system, comprising a high impact, studded polystyrene core. This is covered on one side with a nonwoven, needle punched polypropylene filter fabric and on th


  • Simple convenient drainage and protection layer � serves as robust membrane protection and drainage Geotextile fabric filter � allows ground water to pass into the drain core while restricting the movement of soil particles High flow capacity � drains 186 L/min./m (15 gal./min./ft.) width Rot proof � unaffected by permanent immersion in water, bacteria, dilute acids and alkalis Economical � eliminates imported aggregate drainage layers Studded core � allows water to flow to designated drainage collection points
  • Polymeric backing film-compatible with both sheet and liquid waterproofing membranes
  • Enhances waterproofing � eliminates hydrostatic pressure build-up Efficient water collector/deflector � can be used as a sandwich drainage layer between lagging and the reinforced concrete structure Smooth polymeric sheet � compatible with Preprufe, Procor, or Bituthene membranes
  • Simple, convenient, drainage and protection layer-robust membrane protection
  • Lightweight-easy to install without special equipment
  • High flow capacity-drains 17 gal/min./ft (211 L/min./m) width
  • Universal horizontal application-suitable for all overburdens including concrete
  • Pre-fabricated geocomposite drain for use as a combined drainage and protection layer with grace waterproofing membranes
  • Enhances waterproofing-eliminates hydrostatic head build up
  • Damage and creep-resistant-high compressive strength core resists traffic loads and site damage to maintain drainage flow


  • Brand: WR Grace
  • Product Line: Hydroduct 660
  • Series: 660
  • Material: Polystyrene Core/Polypropylene Filter Fabric/Polymeric Film
  • Tensile Strength: 205 lbs
  • Type: Pre-Fabricated, High Impact
  • Standards: ASTM Specified
  • Thickness: .44 in
  • Length: 50 ft
  • Width: 4 ft
  • Usage: Used With Grace Waterproofing Membranes on All Horizontal Applications