Polyflow® 18

Polyflow® 18 Drainage Mat is two-part, molded sheet drainage geocomposite consisting of a formed impermeable polymeric core covered on one side with woven filter fabric. The fabric allows water to pass into the drain core while restricting the movement of soil particles which might clog the core. The core allows the water to flow to designated drainage exits. Polyflow 18 is designed for horizontal applications. Compressive strength is 21,000 psf.


  • Lightweight & Easy to install
  • Enhanced Compressive strength of core
  • Compressive Strength: 21,000 psf
  • High strength Woven Fabric
  • Complements waterproofing
  • Ideal for Split slabs, Plazas and Parking Decks

Companion Products

(where applicable)
650 Sheet Membrane 60-mil, cold-applied, adhesive waterproofing membrane.
Balconyguard™ Membrane 60-mil, self-adhesive waterproofing membrane for use on wood balcony structures covered with lightweight concrete.
Underseal® PRM™ 65-mil post applied membrane.
Underseal® Underslab Membrane 85-mil pre-concrete pour waterproofing membrane/vapor barrier that provides a continuous seal.

Product Resources

Data Sheet (PDF)Download
Guide Spec (PDF)Download
Guide Spec (WORD)Download
Materials List (PDF)Download
SDS (PDF)Download

Product Submittals

For a job-specific submittal package, please contact Polyguard for Product Submittal Requests. Click here to find your area’s field representative.