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PROTAL 7200
By Denso


Fast Cure, High Build Pipeline Coating

 Description Denso PROTAL 7200 is a VOC free, 100% solids epoxy coating specially formulated to compliment FBE coated pipe. It is a high build liquid coating that is brush or spray applied in one coat in the field or shop. It cures very fast to allow quick handling and backfill times.
 Uses On-site protection of girth welds, tie-ins, welds for boring applications, repairs to FBE, push-back applications, station piping, fittings and fabrication. Also used for main line pipe coating, sacrificial coating for directional drill and road bore pipe, and rehabilitation of existing pipelines.
 Features • Fast touch dry and set times
• High temperature resistance (up to 185°F)
• High build (up to 50 mils in one coat)
• Excellent adhesion (compliments FBE coated pipe)
• High abrasion resistance for drilling applications
• Safe and environmentally friendly
• Does not shield cathodic protection
• Can be applied with brush, roller or spray
• Available in a variety of packaging options
 Application,
 Brush
Prepare surfaces by grit blasting to a clean near white finish, SSC-SP 10/ NACE No. 2. Initially stir the base and hardener. Add the hardener to base and mix until a constant color is achieved making sure all sides of container are scraped. Pour mixed material onto surface and brush, trowel or roll to required mil thickness. A wet film thickness gauge shall be used to measure mil thickness. If surface temperature falls below 50°F (10°C), surface must be preheated to achieve cure. Preheat may be achieved with a propane torch or induction coil. Resin and hardener component shall be kept warm, at a minimum of 68°F (20°C), to mix easily.
 Application,
 
Spray
Prepare surfaces by grit blasting to a clean near white finish, SSC-SP 10/ NACE No. 2. The equipment should be a plural component airless spray unit with a proportioning pump capable of a volume mixing ratio of 3:1. Standard ancillary equipment should include minimum 10 gallon hoppers, static mixers, whip hose, and mastic gun. (Applicator should consult with Denso regarding recommended equipment). A wet on wet spray technique should be used to achieve a minimum thickness of 20 mils. The coating thickness should be measured using a wet film thickness gauge.
 Packaging 1 liter kit and 90 liter drums standard. Other kit sizes are available. Dual cartridge repair tubes (375 ml & 50 ml) and dispensing guns available for small repair areas.
 Storage Minimum 24 months when stored in original containers @ 41°F (5°C) to 100°F (36°C). On job site where temperatures are below 68°F (20°C) product must be kept warm to mix properly.
 Cleaning Clean equipment with solvent cleaner (xylene 95%, butanol 5%).
 Health & Safety Spray or brush under well ventilated conditions. Wear suitable protective clothing and glasses. See MSDS for Protal 7200 "A" and MSDS for Protal  7200 "B".

 

Technical Data

Properties Data
  Solids Content 100%
  Base Component - unmixed at 77°F (25°C)
     Specific Gravity
     Viscosity
     Color

  1.68
  Soft gel
  White
  Hardener - unmixed at 77°F (25°C)
     Specific Gravity
     Viscosity
     Color

  1.04
  Liquid (400 cps)
  Forest green
  Mixed Material - mixed at 77°F (25°C)
     Specific Gravity
     Viscosity
     Color

  1.53
  Light gel
  Forest green
  Mixing Ratio
     By Volume

  3 parts base, 1 part hardener
  Cure Times
     Pot Life @ 77°F (25°C)
     Handling Time @ 77°F (25°C)

  6 to 8 minutes
  60 to 90 minutes
  Theoretical Coverage   14 ft2 (1.3 m2) / liter
  Thickness
    
Minimum
     Recommended
  
  20 mils
  25-30 mils
  Holiday Detection   2,000 volts maximum
  Cathodic Disbondment Test
     28 Days @ 77°F (25°C)
     28 Days @ 150°F (65°C)
     28 Days @ 175°F (80°C)

  3 mm
  4 mm
  7 mm
  Hardness   Shore D 85 ± 2
  Impact Resistance   Excellent
  Application & Service Temperature   -30°F (-34°C) to 185°F (85°C).
  Note: If temperature falls below 50°F (10°C),
  surface must be preheated.
  Glass Transition   185°F (85°C)
  Impact Resistance   Excellent

  
 

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