PRT Aquawrap® / Pre-Preg / MCU

AquaWraps
PRT Aquawrap® PRT Aquawrap® is our Pre-Preg, high strength composite system used to reinforce and repair piping
and infrastructure components. In the PRT design process it is used to halt and encapsulate external corrosion and restore structural integrity to piping.
PRT Aquawrap® consists of a high strength fiberglass substrate that is factory impregnated with a Moisture Cured Urethane (MCU) resin system. Once activated by water, the chemical reaction cure takes about 30 minutes to be dry to the touch. Each of the rolls is supplied in a nitrogen filled, multi-layer Mylar bag and requires no mixing or resin preparation.
PRT Aquawrap® is available in a variety of widths from 2 to 12 inches and lengths up to 150 feet to accommodate any pipe size. It creates a permanent bond to a variety of materials such as metals, concrete, wood and plastics. When cured, it is impervious to fuels, most solvents and chemicals.
PRT Aquawrap® is the product of choice when installing in wet or underwater conditions. It can be applied and fully cured under water. It is best suited for structural reinforcement applications where it can be wrapped around an object, rather than flat surface repairs. It replaces hoop and axial strength to piping to restore its original capabilities. It is also effectively used to reinforce piers, pilings and infrastructure supports for concrete remediation projects.
PRT Aquawrap® contains no VOCs, is odorless, non-flammable, non-toxic, ships non-hazardous and is NSFcertified to ANSI/NSF Standard 61 for use with potable water.

What Regulatory Compliance Standards is PRT Aquawrap® in Compliance With or Validated to?

  • ASME B31G
  • ASME B31.4
  • ASME PCC-2
  • ASME B31.1
  • ASME B31.8
  • ISO/TS 24817
  • ASME B31.3
  • DOT 49 CFR Parts 192 and 195
  • NSF/ANSI Standard 61
NSF

PRT Aquawrap® Chemical Resistance Testing-Chemicals With No Adverse Effects

40 Day Immersion Test Period
Hydrochloric Acid
Ammonia
Acetone
Ethylene Glycol
Diesel
Toluene
Ethyl Alcohol
Crude Oil
Black Liquor
Sulfuric Acid
Gasoline
Xylene

What Types of Repairs?

Properties

  • Abrasion / wear resistance
  • Bend repairs
  • Corrosion mitigation
  • Cracks
  • Dents / gouges
  • Encapsulation
  • Erosion
  • Full hoop / axial strength replacement
  • Isolation / Insulation
  • Leak repair (special applications)
  • Manufacturing / fabrication defects
  • Structural reinforcement
  • Underwater repairs
  • Weld joint/HAZ reinforcement
PRT Aquawrap® G-03
TENSILE STRENGTH
60,900 psi
TENSILE MODULUS
3.24 (e-6 psi)
FLEXURAL STRENGTH
42,000 psi
FLEXURAL MODULUS
2.9 X 106 psi
ULTIMATE LOAD
694 lbs/ply/inch of width
Tg
288° F
HARDNESS
85 Shore D nominal
STANDARD RESIN
ALC AG22 Polyurethane
STANDARD FIBER
ECR Glass
STANDARD WEAVE
0/90°
STANDARD WEIGHT
11 oz/yd 2
STANDARD THICKNESS
11 mils
STANDARD WIDTHS
2”, 3”, 4”, 6”, 10”, 12”
OPTIONAL FIBERS
Carbon Fiber, Kevlar Hybrids
OPTIONAL WEAVES, WEIGHTS, THICKNESSES & WIDTHS
Many Variations-See Additional Chart Below and
Contact PRT for Details

What Kind of Pipes?

  • Aluminum
  • Cast iron
  • Copper
  • GRE
  • Stainless steel
  • Carbon steel
  • Concrete
  • Fiberglass
  • PVC
  • Titanium
ALTERNATE SUBSTRATE MECHANICAL PROPERTIES
PRT Aquawrap® Type G-03
PRT Aquawrap® Type G-05
PRT Aquawrap® Type C-2
 
Reinforcement
woven glass
bi-axial fabric
woven glass
bi-axial fabric
stitched carbon fiber
bi-axial fabric
 
Dry Fabric Weight, (oz./sq. yd.)
11
24
18
 
Nominal Thickness (mils)
11
27
38
 
Tensile Strength (psi)
60,900
47,500
61,755
 
Tensile Modulus

(e-6 psi)
3.24
3.2
4.56
 
Tensile Load

per ply (pounds)
694
1,280
2,341
 
Compressive Strength (psi)
28,000
25,000
27,000
 
Interlaminar Shear (psi)
3,372
2,750
3,150
 
All products are readily available in a wide variety of other fabric materials and weaves as well as many widths and roll lengths or pipe size kits. In addition, custom product designs and product type integrations for special customer applications are available. Values listed represent the latest test results for the warp direction. Contact PRT Technical Support for more information.

Pipe Burst Test Results

An axial split occurred in the pipe between the area of the wrap and the welded end cap. The split was 18” long and 2.063” at its widest point. The wrap was unaffected by the failure. The composite wrap measured 17.25” wide and .6875” thick. There were no apparent leaks in the pressurized assembly. The diameter of the pipe increased measurably between the wrap and the welded end cap. The diameter at the end which did not fail increased to 14.06” as the steel yielded. Conclusion: PRT Aquawrap® was able to reinforce the weakened area and outperform the untouched pipe. Pipe Burst Test Results

  • 12.75” OD Pipe x .250 wall (ERW - ASTM A53 GR. B)
  • Calculated Yield Pressure : 2543 psi
  • Actual Burst Pressure: 2740 psi
  • Defect Repaired – 1.47” W x 6” L x .125” depth (50%)

PRT Aquawrap® Hydrotest of Through Wall Defect

Repaired 100% Through Wall Defect ( 5mm hole)
Repaired 100% Through Wall Defect (5mm hole)
.
Held Test Pressure at 12,000 kPa (1740 psi ) for 24 Hours
Held Test Pressure at 12,000 kPa (1740 psi ) for 24 Hours
.

PRT Aquawrap Examples

Below are a few installation examples that highlight the adaptability of the PRT Aquawrap system.
Please contact us with any questions about your specific project needs.
24” x 16” Reducing Tee, Dual 24” x 18” Eccentric Reducers and 24” 90 Degree Elbow
24” x 16” Reducing Tee, Dual 24” x 18” Eccentric Reducers and 24” 90 Degree Elbow
.
72” Diameter Acid Tank Repair
72” Diameter Acid Tank Repair
.
Curing Process Outgassing Through the Perforated Blue Stricture Banding

Curing Process Outgassing Through the Perforated Blue Stricture Banding
.
30” x 16” Concentric Reducer
30” x 16” Concentric Reducer
.
Completing the Application With Stricture Banding

Completing the Application With Stricture Banding
.
Close Proximity 24” and 18” Repairs
Close Proximity 24” and 18” Repairs
.
36” Diameter With 2” Transition  to Valve

36” Diameter With 2” Transition to Valve
.
42” Double 45 Degree Elbows
42” Double 45 Degree Elbows
.
Job Well Done – Two 8 man crews complete installation of 420 meters of  36”, 24” and 16” PRT PowerSleeve® and PRT Aquawrap® in just 26 days.

Job Well Done – Two 8 man crews complete installation of 420 meters of 36”, 24” and 16” PRT PowerSleeve® and PRT Aquawrap® in just 26 days.
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What Types of Repairs?

Modern composite repair systems are extremely versatile and adaptable. They can be customized for specific tasks and have impressive capabilities that make them attractive options to traditional repair or replacement methods.
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ASME PCC-2 Spool Test Summary

Testing was recently performed on our PowerSleeve® composite system. The 80% wall loss repair was pressurized to 8200 psi (565 bar). It performed as calculated and was a complete success.
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Gallery

36 Inch Compound Double 45 Degree Elbow Bridge Column Before 50% Wall Loss Under Wrap-Wrap Unaffected at 2740 psi Burst Pressure 24 Inch Crude Oil Lines