185,000 psi

3.01 x 10⁶psi

51,800 psi

1.9 x 10⁶ psi

1) Prepping the pipe surface as required.

2)Fill all voids and “tented areas” with the proprietary high compressive strength filler material to a “near net” profile.

3)Apply the Epoxy Coating.

4)Tightly wrap the A+ Wrap around the pipe while ensuring that plenty of water is applied to the composite wrap during application. 5)Apply the constrictor wrap to the required area for proper curing.

1) External defects of the pipe surface up to 80% wall loss (all sharp edges must be removed).

2) Defects near welded areas with a depth of up to 50% wall loss and no more than 30% of the circumference.

3) Cracked areas in the pipe body – if the crack can be ground out.

4) Dents with a depth up to 12.5% of the pipe’s diameter.

5) Gouges provided they have been cleaned to give them a smooth profile.

6) Defects in the line’s inners surface as a temporary repair. The types of defects listed above can also be repaired on curved sections of pipe.

Yes, the A+ Wrap System may only be installed by Trained Personnel.

Level 1 Installer: Trained in the Field by Pipe Wrap L.L.C. Personnel or Certified
Trainers. This level of training provides specific application technique and general product knowledge.

Level 2 Installer: 1-1/2 day course (classroom & hands-on) either at the Customer’s or Pipe Wrap L.L.C. Facility. This level of training provides application techniques for all scenarios and thorough product knowledge.

Trainer: 3 day course (classroom & hands-on) either at the Customer’s or Pipe Wrap L.L.C. Facility. This level of training provides application techniques for all scenarios, thorough product knowledge, use of engineering analysis software, etc. The individual will be fully qualified to train others to install the A+ Wrap Repair System.

1) Certified Installers - the certification is for one (1) year from the time of the last verifiable installation.

2)Certified Trainers – the certification is for one (1) year from the time of the last verifiable training.

1) The construction of the A+ Wrap Sleeve uses at least equivalent raw materials, thus testing of other water-activated systems- characterizing material behavior is still applicable. The materials for A+ Wrap are manufactured to provide a verifiable superior laminate construction enabling distinct advantages over the other water-activated composite sleeves.

2)The A+ Wrap System also has a “smart pig detectability” feature, but without the pit-falls associated with creating potential cathodic reactions.

1) The A+ Wrap System has been and will continue to be tested as an on-going process to ensure that material performance meets the requirements as specified. This is to ensure that manufacturing deviations do not occur.

2) The A+ Wrap System utilizes specifically designed Detector Tabs that are “magnetically detectable” to enable smart pigs to identify repaired areas enabling the
operator to only address the defect areas not previously rehabilitated.

3)The Detector Tabs used in the A+ Wrap System are designed to prevent the introduction of any cathodic reactions between the parent pipe and the tabs. Basically add a benefit without adding a future problem.

4) The A+ Wrap System’s composite sleeve has a superior laminate construction enabling distinct advantages over other water-activated composite sleeving systems.

1) The A+ Wrap System is conformable, thus the restrictions of pipe ovality and bend radius do not apply except within the guidelines of API Specifications.

2) The A+ Wrap System has a superior laminate construction enabling distinct advantages over the rigid composite sleeves.

3) The A+ Wrap System utilizes specifically designed Detector Tabs that are “magnetically detectable” to enable smart pigs to identify repaired areas enabling the
operator to only address the defect areas not previously rehabilitated.

4)The Detector Tabs used in the A+ Wrap System are designed to prevent the introduction of any cathodic reactions between the parent pipe and the tabs. Basically add a benefit without adding a future problem.

5) The A+ Wrap System does not require the use, handling or storage of any
hazardous chemicals.

6)The application of the A+ Wrap System is relatively seamless with minimal transition time when additional wraps are required to ensure the integrity of the repair.

7)The A+ Wrap System is more economical because the system is offered in over sixteen (16) various sizes, thus enabling the end user to make the smart choice to only purchase the required materials based on the defect length.

1) “Edge Effect” is a strength of materials phenomena not exclusive to Rigid Composite Sleeving Systems in which residual reinforcement extends beyond the physical limits of the actual reinforcing material. This phenomena applies to all materials added as a reinforcement, such as steel choke collars and the A+ Wrap System.

2)The use of the “Edge Effect” phenomena by Rigid Composite Systems enables the systems to have a misalignment of approximately 1/2" from one unit to another without affecting the structural integrity of the repair. Although the structural integrity of the repair is not in question, the gap between units could be a point for moisture ingress. More potential points of moisture ingress, the higher the probability of an occurrence.

3)The A+ Wrap System does not typically utilize the strength of materials phenomena because the systems are designed such that continuous coverage of product does not leave gaps, so less points of interest for moisture ingress.

1) One common mistake made during the application of the A+ Wrap System is not applying enough water to the wraps. Each layer should be sufficiently “wetted” with water during the application. Excess water will not jeopardize the repair. All excess water will be shed during the tightening of each layer as it is applied to the repair area.

2)The other most common mistake is opening up the package for the repair sleeves
before the repair is ready to be made. The A+ Wrap sleeve are water-activated.
The products will extract moisture out of the air.

How much should the A+ Wrap Repair extend beyond the repair area?

1) The use of the A+ Wrap System without the Magnetically Detectable Tabs
should extend a minimum of 2” beyond both sides of the defect area.

2) The use of the A+ Wrap System with the Magnetically Detectable Tabs
should extend a minimum of 4” beyond both sides of the defect area.

3) The above requirements also apply when utilizing the Pipe Wrap Plus™ System.

No, the chemical curing process requires the hydrogen atoms extracted from the water molecule while the same process expels carbon atoms which couples with the free oxygen to form carbon dioxide ~ the gas that is escaping (out-gassed).

Although MIC is a serious problem with metal, they pose no difficulty with FRP materials because bacteria has no appetite for high molecular weight polymers. Due to this known fact, the FRP Industry has never seen any evidence of MIC corrosion. At times people have been concerned with fungus because some thermoplastics can be degraded by fungus. With FRP, there has never been any proof that this happens. In cases where fungus attack was suspected, a close examination reveals that the apparent fungus growth is really on soil particles, which are physically adhering to exhume FRP. Gasoline tanks buried in sulfate containing soils are virtually unaffected after thirty years or so, while metal tanks under the same conditions would be severely corroded by sulfate reducing bacteria.

The only specific recommendations in reference to pipe coatings are:

A) It must be applied after the A+ Wrap System has cured (approximately 1 hour after installation).
B) It must be opaque.
C) It must bond to composite.

We have no recommendations for a specific type of pipe coating (mastic coatings, shrink sleeves, etc.) but the coating used for above ground applications must have UV inhibitors to minimize UV degradations to itself.

It depends on the type of paint or coating it is compared to because the failure modes for the materials are different. The failure mode for a coating has more to do with shear strength while the failure mode for A+ Wrap has to do with interlaminar fracture toughness.

In relation to elongation, most paints have at least 6% while elastomeric coating can have up to 200%. The A+ Wrap sleeve typically has approximately 4% elongation and the epoxy coating has approximately 12% elongation. Although the cured A+ Wrap system will typically have a higher impact toughness than the coatings, it is advisable that the A+ Wrap be inspected whenever the coating shows evidence of impact.