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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, pushrack 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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