Syntho-Glass® UP Repair System was specifically designed for under pressure leak repair applications on copper, steel, SS, PVC, FRP, concrete, rubber, and more.

By combining the original Syntho-Glass® product, with the extremely chemically resistant Syntho-Steel™ and unique Pressure Sealing Rubber Tape, this offers the geometric flexibility to repair joints, tees, couplings, and pinholes. This complete system simplifies the application process and is prepackaged to accommodate pipes up to 10 inches in diameter. Larger repair applications can be engineered to meet your requirements.

Datasheet  SDS Sheets


Typical Applications

  • Under pressure leaks on:
    • Leaking joints
    • Pinhole leaks


  • Repair of pipes under pressure up to 60 psi (4.1 bar)
  • No shutdown necessary
  • Simple application
  • Effective, time-saving
  • No mixing and no mess
  • Sets rock hard in minutes
  • NSF61 and BS6920 approved for potable water when Syntho-Steel is used as the primary sealant

Working Time

5 minutes at 750F (240C)

Set Time

30 Minutes at 75°F (24°C)

Shelf Life

24 months with recommended storage conditions


32 to 250°F (0 to 121°C)

Related Products
The following products are system components of the Syntho-Glass UP system:

  • Syntho-Steel Putty
  • Butyl Strip
  • Pressure Sealing Rubber Tape
  • Syntho-Glass
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