SpectraGarde / Potable Water

Spectra Garde® - Specially formulated for NFS 61 Potable Water applications.

SpectraGarde® is a multi-layered, high performance coating system principally used for potable water NSF-61 Standard applications. It is typically used for coating concrete and steel water storage tanks, distribution lines and related structures.
Following proper surface preparation (typically hydro-blasting for concrete substrate and sand-blasting for steel substrate), SpectraGarde® is applied in two steps. The first step is the surfacing application.
This spray applied surfacing coat of closed cell urethane foam fills all voids, eroded areas, bug holes, and “builds back” the area to a smooth, level surface. A sprayed-on, two-component, flexible polyurethane is applied over the surfacing layer creating a two-layer, durable, chemical resistant liner system.
SpectraGarde® coatings have been used successfully since 1988 in a wide variety of applications.

potable water structure lining
potable water structure lining

Primary Features & Benefits


  • Good Flexibility – expands and contracts with the substrate; great impact resistance
  • Fast turnaround – minimize production/return to service time with quick cure times
  • Case histories in aggressive immersion environments, dating back to the late 1980s
  • Easy to achieve excellent coverage
  • Virtually unlimited build capabilities – 20 mils up to inches
  • Wide application temperature range
  • Highly Impermeable – provides excellent corrosion protection
  • Abrasion & Impact Resistant – mitigates damage during handling and installation;
    protects expensive equipment
  • Strong Adhesion – over 1500 psi on abrasive blasted steel