
Repair Kits: Under Pressure
PRODUCT INFORMATION
Syntho-Glass®UP Repair System was specifically designed for under pressure leak repair applications on copper, steel, SS, PVC, FRP, clay, 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.
- 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
- VOCs: None
- Service Temperature: Syntho-Steel, Pressure Sealing Tape and Syntho-Glass: -50 to 250°F (-46 to 121°C)
- Butyl Strip: -50 to 158°F (-46 to 70°C)
- Application Temperature: 32° to 250°F (0° to 121°C)
- Live Repair Pressure: Max 60 psi (4.1 bar)
- Pressure Once Cured: Max 300 psi (20.6 bar)
- Repair Temperature: Max 250°F (121°C)
- Set Time: 28 Minutes at 70°F (21°C)
- Shelf Life: 24 Months
- Step-by-Step Instructions
- Sanding Cloth
- Solvent Cleaning Wipe
- Protective Gloves
- Syntho-Steel™ Putty
- Butyl Strip
- Pressure Sealing Rubber Tape
- Syntho-Glass®
- Compression Film
| Pipe Diameter | Roll Size | Item # |
|---|---|---|
| 1/2" - 1" (12.7mm - 25.4mm) | 2" x 5' (5.08cm x 1.524m) | UP520 |
| 1 1/4" - 2" (31.75mm - 50.8mm) | 3" x 9' (7.62cm x 2.743m) | UP930 |
| 2 1/2" - 4" (63.5mm - 101.6mm) | 4" x 15' (10.16cm x 4.572m) | UP415 |
| 4 1/2" - 6" (114.3mm - 152.4mm) | 4" x 30' (10.16cm x 9.144m) | UP430 |
| 6 1/2" - 10" (165.1mm - 254mm) | 6" x 50' (15.24cm x 15.24m) | UP650 |
TESTING DATA & RESULTS
| Test | Method | Result |
|---|---|---|
| Tensile Strength | ASTM D3039 | 36,000 psi (2482.1 bar) |
| Lap Shear Strength | ASTM D5379 | 900 psi (62.05 bar) |
| Flexural Strength | ASTM D790 | 26,100 psi (1799.53 bar) |
| Dielectric Strength | ASTM D149 | 16,000 Volts |
For NRI's full range of testing on the Syntho-Glass®UP, please email sales@neptuneresearch.com.
PREPARATION & APPLICATION
-
1
Pinpoint origin of leak following standard leak detection procedures. Reduce line pressure to a maximum of 60 psi (4 bar).
-
2
Clean and roughen using a wire brush and supplied emery cloth to remove excess rust, dirt or loose scale. Remove any oils, greases, soaps or foreign materials from pipe surface by utilizing the included solvent cleaning wipe.
-
3
Unroll first 6" (15cm) from roll of Pressure Sealing Rubber Tape and remove backings. Set aside. Remove Syntho-Steel Putty from packaging and knead until uniform in color. Maximum mixing time: 2 minutes. Minimum mixing temp: 50°F (10°C)
COMPLETE #4 OR #5 DEPENDING ON YOUR APPLICATION, THEN PROCEED TO #6
-
4
PINHOLE: Place ball of mixed Syntho-Steel Putty just large enough to fill the void above pinhole.
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5
JOINT: Mold mixed Syntho-Steel Putty into a rope 1/8"-1/4" (3mm-6mm) rope and place around entire circumference of the joint, pressing firmly into place. NOTE: the rope should not exceed the shoulder of female fitting.
OPTIONAL: For difficult liquid repairs, apply Butyl Strip(s) in lieu of, or in addition to, Syntho-Steel (steps 4 & 5 above). Remove adhesive backing from Butyl Strip(s) and apply in an overlapping manor around the entire circumference of the joint.
-
6
Press adhesive side of black rubber Pressure Sealing Tape (PTR) onto pipe beside Syntho-Steel Putty, or Butyl Strip, and overwrap 2 layers of PTR onto itself in a clockwise direction, thus anchoring the PTR to the pipe. Continue wrapping PTR, stretching it to its maximum tension, working toward putty, thus pushing the putty into the defect. Wrap remainder of PTR DIRECTLY over the putty, forcing the putty into the defect. DO NOT CHASE THE LEAK, as each wrap of PTR provides additional pressure to seal the leak. Use entire roll.
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7
STOP! After applying the Pressure Sealing Tape, test repair by following your leak detection procedures to ensure the leakage is sealed and contained.
-

8
Water is needed to activate the Syntho-Glass Outer Wrap (SG). Put on supplied gloves, open foil pouch & submerge the roll of SG in water for approximately 10 seconds. 8 layers of SG are required & must extend 2" (5cm) on either side of the PTR, covering the entire repair site.
NOTE: To achieve an 8 layer application, apply 4 passes of SG in a clockwise direction using a 50% overlap. Occasionally twisting the SG as it is applied helps it conform tightly to the pipe surface at elbows or odd geometries.
9
Apply 4 layers of clear plastic compression film over the entire composite repair, wrapping in the same direction as the SG was applied. Using a perforating tool or wire brush, perforate all layers of compression film to allow the gas generated by the curing process to escape. Remove compression film after approximately 10 minutes.
-
10
Once the SG has reached its initial cure, 28 minutes @ 75°F (24°C), it should be protected with a UV coating, such as Syntho-Glass®UV before returning to service.














