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RPS-70-9 Epoxy Coating


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RPS-70-9 epoxy coating – formerly, FX-70-9 – is a high-solids, two-component, moisture-tolerant, high-build protective coating designed to protect steel, concrete and wood.

CSI Specification

  • 09 96 56 Epoxy Coating

Key Features

  • Excellent abrasion resistance in wastewater and other industrial applications
  • Resists abrasion and staining
  • Suitable for immersion service
  • Can be applied to damp concrete
  • Self-priming for most applications
  • Can be fabric reinforced for added durability
  • Very low odor
  • Can be brush, roller or spray applied
  • Excellent bond to common construction materials


  • Commercial and industrial applications requiring moderate chemical resistance
  • Primary and secondary containment
  • Water/wastewater: clarifiers, digesters, sludge thickener tanks, lift stations, manholes
  • Marine applications: protection from salt spray and water intrusion in immersion service applications
  • Fiber-reinforced polymer (FRP) topcoat
  • Petrochemical applications
  • Above- and below‑grade applications
  • Floor and wall coating

Application Rate

  • 16–20 DFT mils total applied in two coats
  • 160–200 ft.2/US gal. (3.9–4.9 m2/L) per coat depending on surface profile and porosity


  • Gloss


  • Limestone

Mixing Ratio

  • 2A:1B


  • 15,600 cps

Storage Conditions

  • Store dry between 40–95°F (4–35°C)

Shelf Life

  • 2 years in unopened packaging


  • 12 g/L (mixed)


  • 3 US gallon (11.4 L) kit (RPS-70‑9GRKT3)
  • 15 US gallon (56.8 L) kit (RPS-70‑9GRKT15)

Limited Warranty

  • This product is covered by the Simpson Strong-Tie® RPS Product One-Year Limited Warranty, which is available at strongtie.com/limited-warranties or by calling Simpson Strong-Tie at (800) 999-5099

Related Literature

Code Reports & Compliance