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CSS-UES Underwater Epoxy Saturant


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Underwater Repair

This product's information may differ depending on the category of use. You are currently viewing details related to Underwater Repair. You can also view product information related to the category: Epoxy Primer and Saturant

CSS-UES is a two-component, high-strength, high-modulus epoxy resin system used to saturate the Simpson Strong-Tie® Composite Strengthening Systems™ (CSS) fabrics for marine applications. When extended with fumed silica, thickened CSS-UES is used as a high-performance substrate repair material and CSS finish coating. This product is NSF-listed safe for potable water. Please refer to the NSF listing for the NSF 61–listed application.

Key Features

  • Underwater use
  • Long working time
  • High elongation
  • Ambient cure
  • Minimal odor
  • High versatility
  • NSF listed


  • Seismic retrofit
  • Load rating upgrade
  • Damage repair
  • Defect remediation
  • Blast mitigation

    Mixing Ratio

    • 2A:1B by volume

    Storage Conditions

    • Store material in a dry area between 45°F (7°C) and 95°F (35°C) with no exposure to moisture.

    Shelf Life

    • 2 years in unopened container


    Kit Size / Model No.

    • 3 US gallon (11.4 L) / CSS-UES-3KT


    • 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