Protal 7125 Repair Cartridge: Fast Cure, Low Temperature Pipeline Repair Coating by Denso

Two-component tubes for application of Protal 7125, fast-cure, low-temperature epoxy pipeline repair coating.

Denso Protal 7125 Repair Cartridge are specially formulated for patching and repairing damaged FBE and other liquid coated pipelines. The repair cartridges are packaged in 2-component tubes (825 ml) and are applied with a dispensing gun (sold separately).


Repair coating for damaged FBE and other liquid coated pipelines. Also used as coating of Cadweld areas


  • Cold temperature application down to -4°F (-20°C)
  • Will not freeze
  • Fast cure, fast initial set
  • Will cure when submersed in water
  • High build (in one coat)
  • Excellent adhesion (compliments FBE coated pipe)
  • Does not shield cathodic protection 


Repair areas shall be roughened using Carborundum cloth or 80 grit sandpaper and wiped clean with an isopropyl alcohol soaked cloth prior to patching. Material can be applied by injecting material into a small container and mixing until a uniform color is achieved. Material can then be brush applied to specified mil thickness (minimum 20 mils). Cure times are dependent on temperature and will be extended at cooler temperatures.

Technical Data


Solids Content / Percent Reactive


Mixed Material (Mixed) @ 77°F (25°C)
     Specific Gravity

Thixotropic Liquid

Mixing Ratio by Volume

10 Parts Base:1 Part Hardener

Handling Times
     Ambient & Substrate Temp. @ 110°F (43°C)
     Ambient & Substrate Temp. @ 90°F (35°C)
     Ambient & Substrate Temp. @ 70°F (25°C)
     Ambient & Substrate Temp. @ 50°F (10°C)
     Ambient & Substrate Temp. @ 32°F (0°C)
     Ambient & Substrate Temp. @ 14°F (-10°C)

3 - 5 Minutes
10 - 15 Minutes
20 - 30 Minutes
1 Hour
2 Hour
4 Hours

Recommended Thickness

25 - 30 mils

Cathodic Disbondment
     28 Days @ 68°F (20°C)

7.1 mm

Adhesion to Steel

2400 psi

Adhesion to FBE

1100 psi

Hardness (ASTM 2240) Shore D

85 min.

Gouge Resistance

3 Passes = 0 Fail @ 50 kg

Application Temperature

-4°F to 150°F (-20°C to 65°C)

Service Temperature

-40°F to 150°F (-40°C to 65°C)

Holiday Detection (Maximum)

100 Volts/mil


Handling & Storage



12 months when stored in original containers between 40°F and 80°F (4°C and 27°C). Product will not freeze.


Clean equipment with solvent cleaner (Xylene 95%, Butanol 5%) or approved solvent.

Health & Safety

Apply under well ventilated conditions. Wear suitable protective clothing and glasses. See material safety data sheets.


825 ml dual cartridges. Dispensing guns sold separately.