COMBIWRAP Composite Repair Pipeline System for Permanent Pipeline Strengthening

Industrial pipelines, tanks, vessels, and steel structures are constantly exposed to corrosion, erosion, mechanical damage, and chemical attack. Replacing damaged assets often results in costly shutdowns, production losses, and extensive maintenance expenses.

DEMECH CHEMICAL COMBIWRAP Composite Repair Pipeline System provides a reliable, cost-effective, and long-lasting alternative to replacement. Designed in compliance with ISO 24817 and ASME PCC-2 standards, COMBIWRAP restores the structural integrity of weakened, perforated, and corroded metallic assets while minimizing downtime. The advanced composite repair technology combines glass fiber reinforcement with hybrid epoxy-polyurethane systems, delivering exceptional strength, corrosion resistance, chemical resistance, and adhesion.

What is COMBIWRAP Composite Repair System?

COMBIWRAP is a high-performance composite wrap repair system engineered to repair and strengthen:

• Pipelines
• Pressure vessels
• Storage tanks
• Steel structures
• Process equipment
• Marine and offshore assets

The system restores damaged sections without welding, hot work, or equipment replacement. It can be applied quickly and is suitable for operating pressures up to 30 bar.

How COMBIWRAP Works

The repair system utilizes multiple layers of specially engineered glass fiber reinforcement saturated with high-strength epoxy-polyurethane resin systems.

Once applied over the damaged area, the composite wrap forms a durable structural shell that:

• Restores mechanical strength
• Reinforces weakened pipe sections
• Arrests corrosion damage
• Prevents further deterioration
• Extends equipment service life

The ultra-high adhesion properties ensure excellent bonding with carbon steel, stainless steel, and other metallic substrates.

Industrial Problems Solved by COMBIWRAP

DEMECH CHEMICAL specializes in engineered composite repair solutions for both maintenance and new-build applications.

Common Problems Addressed

Metal Loss Due to Corrosion

• Internal corrosion
• External corrosion
• Pitting corrosion
• Wall thickness reduction

Through-Wall Defects

• Pinhole leaks
• Active leaks
• Perforations

Mechanical Damage

• Dents
• Cracks
• Impact damage
• Abrasion damage

Structural Damage

• Tank floors
• Tank roofs
• Deck plates
• Steel structures

Complex Geometries

• Pipe bends
• Tees
• Flanges
• Reducers
• Irregular vessel surfaces

Applications of COMBIWRAP Composite Pipeline Repair

COMBIWRAP is ideal for repairing and strengthening pipelines suffering from:

• Internal corrosion
• External corrosion
• Pinhole leaks
• Cracks
• Mechanical damage
• Erosion
• Abrasion
• Denting
• Sabotage damage
• Through-wall defects

Industries Served

• Oil & Gas
• Refineries
• Petrochemicals
• Power Plants
• Mining
• Water Treatment Plants
• Marine & Offshore
• Chemical Processing Plants
• Fertilizer Plants
• Steel Plants

Key Advantages of COMBIWRAP Composite Repair System

International Standard Compliance

Fully compliant with:

• ASME PCC-2
• ISO 24817

Fast and Cost-Effective Repairs

Avoid expensive replacements and minimize downtime.

Superior Adhesion

Exceptional bonding to:

• Carbon Steel
• Stainless Steel
• Alloy Metals

Structural Strength Restoration

Can restore a significant portion or even full structural integrity depending on the design requirements.

No Hot Work Required

• No welding
• No cutting
• No sparks
• No fire hazards

Online Repairs

Repairs can often be performed without plant shutdowns.

Reduced Downtime

• Applied in minutes
• Returns equipment to service within hours

Long-Term Corrosion Protection

Provides durable resistance against aggressive industrial environments.

Solvent-Free Technology

• 100% solids
• Environmentally friendly
• Reduced health and safety risks

Non-Conductive Repair System

Ideal for various industrial applications requiring electrical insulation properties.

MRO Products Used in Composite Repair Systems

Tuff Metal® Superior Metal

A two-component 100% epoxy repair compound designed for rebuilding and reclaiming worn metal surfaces requiring precision repair.

Applications

• Shaft rebuilding
• Bearing housing repair
• Thread restoration
• Pump casing repair
• Engine block repair
• Gear repair

Benefits

• Outstanding compressive strength
• Non-rusting
• Precision machining capability

 

Tuff Metal® Steel Putty

A steel-filled epoxy repair putty for economical repair and maintenance applications.

Applications

• Repairing cracked castings
• Tank repair
• Vessel repair
• Valve repair
• Metal reclamation
• Defect filling

Benefits

• Easy application
• No heat required
• Bonds to metal, concrete, and wood

Tuff Metal® Fast Cure Steel Putty

A rapid-setting steel-reinforced epoxy system designed for emergency repairs.

Applications

• Online oil leakage repair
• Gas leakage repair
• Water leakage repair
• Pipeline emergency maintenance
• Transformer leakage repair

Benefits

• Sets within 4 minutes
• Cures within 10 minutes
• Excellent oil and gas resistance

Tuff Metal® Metal Magic Steel Stick

A ready-to-use emergency repair compound requiring no mixing.

Applications

• Water leak repairs
• Oil leak repairs
• Gas leak repairs
• Weld smoothing
• Crack repairs
• Hole filling

Benefits

• Cut-Knead-Apply technology
• Fast repairs
• Metal-like finish

Protective Coating Systems for Composite Repairs

Composite repair systems require high-performance protective coatings to maximize service life and corrosion resistance.

Chemguard® Vinyl Ester Coating

Chemguard® is a premium vinyl ester coating offering superior chemical and corrosion resistance.

Advantages

• 100% solids system
• Excellent acid resistance
• Excellent alkali resistance
• Solvent resistance
• Hydrocarbon resistance
• High-temperature atmospheric resistance

Applications

• Chemical storage tanks
• Demineralized water tanks
• Molasses tanks
• Effluent treatment plants
• Structural steel protection

KOROGUARD® Anti-Corrosive Coating

KOROGUARD® is a high-build epoxy coating system designed for severe industrial environments.

Advantages

• Non-shrinking
• Chemical resistant
• 100% solids epoxy system
• High dry film thickness
• Long-lasting corrosion protection

Applications

• Water treatment tanks
• Neutralization pits
• Structural steel
• Pipelines
• Water gates

Polyurethane Coating System

A solvent-free hybrid polyurea-polyurethane coating providing exceptional protection against corrosion and chemical attack.

Applications

• Seawater channels
• Offshore structures
• Splash zones
• Digester coating
• Steel tanks
• Concrete tanks
• Pipeline internal coatings
• Pipeline external coatings
• Corrosive chemical storage systems

Benefits

• Fast curing
• Excellent crack bridging
• Superior seawater resistance
• High abrasion resistance

 

Why Choose DEMECH CHEMICAL for Composite Pipeline Repairs?

DEMECH CHEMICAL has extensive expertise in:

• Composite pipeline strengthening
• Corrosion protection
• Maintenance and repair operations (MRO)
• Protective coatings
• Polyurethane coatings
• Asset life extension solutions

Our engineered repair systems help industries reduce downtime, lower maintenance costs, and extend the service life of critical assets.

Frequently Asked Questions (FAQs)

What is a composite wrap repair system?

A composite wrap repair system is a non-metallic engineered repair solution used to restore strength and integrity to damaged pipelines, tanks, vessels, and structures without replacing them.

Is COMBIWRAP compliant with international standards?

Yes. COMBIWRAP is designed in accordance with ASME PCC-2 and ISO 24817 standards.

Can composite wraps repair leaking pipelines?

Yes. COMBIWRAP can be used to repair pinhole leaks, through-wall defects, and corrosion-related damage, depending on operating conditions and repair design requirements.

Does pipeline repair require shutdown?

In many cases, COMBIWRAP can be applied online without shutting down operations, minimizing production losses.

What materials can COMBIWRAP be applied to?

The system bonds exceptionally well to:

• Carbon steel
• Stainless steel
• Various metallic substrates

How long does a composite repair last?

When properly designed and installed, composite repairs can provide long-term service life and structural reinforcement for many years.

What industries use composite repair systems?

Industries including oil & gas, petrochemicals, power generation, mining, marine, water treatment, and chemical processing widely use composite repair systems.

What are the advantages of composite repair over pipe replacement?

• Lower cost
• Faster installation
• No hot work
• Reduced downtime
• Improved safety
• Long-term corrosion protection

What coatings are recommended with composite repairs?

Protective coatings such as Chemguard®, KOROGUARD®, and Polyurethane Coatings are commonly used to provide additional corrosion and chemical resistance.

Why is corrosion protection important after pipeline repair?

Corrosion protection prevents further metal loss, extends asset life, reduces maintenance costs, and improves operational reliability.

 

Contact DEMECH CHEMICAL

For expert composite pipeline repair solutions, protective coatings, and corrosion protection systems, contact DEMECH CHEMICAL today.

Website: www.demechchemical.com

Call: +91 8240281662

WhatsApp: +91 8378996952 Email: enquiry@demechchemical.com Website: www.demechchemical.com