CSNRI A+ Wrap & A+ Max

Description

CSNRI A+ Wrap & A+ Max

Factory-Saturated Fiberglass Composite Repair for Permanent Pipeline Rehabilitation

CSNRI A+ Wrap & A+ Max are factory-saturated, bi-directional fiberglass composite repair systems engineered for the permanent rehabilitation of corroded and dented pipelines. Designed to eliminate field resin saturation and fabric measuring, these advanced composite wraps significantly reduce installation time while ensuring consistent repair quality.

By compressing installation steps and allowing same-day backfill in many cases, CSNRI A+ Wrap & A+ Max help operators reduce time in the ditch, lower installation risk, and maintain regulatory compliance. These systems are ideal for on-site permanent repairs without welding or pipeline shutdown .

Product Options: A+ Wrap vs. A+ Max

CSNRI A+ Wrap

Best suited for:

• Small diameter pipes
• Soil-to-air interfaces
• Corrosion and dents
• Bends and complex geometries

CSNRI A+ Max

Designed for:

• Large diameter pipelines
• Severe corrosion and dents
• Aggressive cyclic fatigue environments

Both systems deliver permanent composite reinforcement while simplifying installation .

Product Benefits

• Permanent Repair Without Disruption – Install without shutting down pipeline operations
• No Hot Work Required – Safer alternative to welded sleeves
• Factory-Saturated System – Eliminates field resin mixing and measurement
• Same-Day Install, Recoat & Backfill – Reduce downtime and labor costs
• Installs Over Laminations & Thin Wall Pipe – Ideal where Type B sleeves cannot be welded
• Conforms to Complex Geometries – Elbows, tees, flanges, bends, and more
• Underwater & Condensating Line Capable
• Engineered Design Support Package – Supports regulatory compliance

Engineering & Performance Data

A+ Wrap

• Circumferential Tensile Strength: 53.25 ksi (367 MPa)
• Axial Tensile Strength: 23.81 ksi (164 MPa)
• Ply Thickness: 0.014”
• Tensile Modulus (Circ.): 3.68 Msi

A+ Max

• Circumferential Tensile Strength: 65.31 ksi (450 MPa)
• Axial Tensile Strength: 12.67 ksi (87 MPa)
• Ply Thickness: 0.027”
• Tensile Modulus (Circ.): 4.68 Msi

Additional performance specifications:

• Glass Transition Temperature: 260°F (126°C)
• Max Recommended Application Temperature: 120°F (50°C)
• Shelf Life: 24 months

These mechanical properties ensure durable composite reinforcement under operational loads.

Typical Applications

CSNRI A+ Wrap & A+ Max are ideal for repairing:

• External corrosion and metal loss
• Dents and deformation
• Soil-to-air transitions
• Complex pipeline geometries
• Pipelines in aggressive cyclic fatigue conditions
• Areas where welded sleeves are not feasible

Code Compliance & Standards

CSNRI A+ Wrap & A+ Max comply with:

• US CFR 192 & CFR 195
• CSA Z662
• ASME B31 Standards
• ISO 24817
• ASME PCC-2 Article 401

These approvals support their use as permanent composite pipeline repair systems .