Sylmasta SylWrap HD Pipe Repair Bandage

Price range: $37.22 through $480.30

SylWrap HD Pipe Repair Bandage is a composite fiberglass wrap with a water-activated resin which sets rock hard in minutes to provide high-strength reinforcement of leaking or damaged pipes.

  • Easy to use – simply activate with water and then wrap around the pipe or structure requiring repair
  • Cures quickly for a full strength repair inside 30 minutes
  • Increases pressure resistance, chemical resistance and hoop strength of pipes
  • Refurbishment and strengthening of pipes offers a cheaper alternative to replacing systems
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The Sylmasta SylWrap HD Pipe Repair Bandage is a heavy-duty, resin-impregnated fiberglass wrap engineered for fast, effective pipe repairs in demanding environments. Designed to restore integrity to leaking or weakened pipework, SylWrap HD bonds to metal, plastic, composite, and concrete surfaces — offering a high-strength, long-lasting solution without the need for cutting, welding, or specialized tools.

This versatile wrap is suitable for both emergency repairs and long-term reinforcement, withstanding internal pressures up to 430 psi (30 bar) and temperatures up to 482°F (250°C). It’s used in water utilities, industrial plants, marine systems, oil and gas pipelines, and power stations where fast return to service is critical.

All size variants offer the same performance characteristics: fast curing, high bond strength, chemical resistance, and a cured lifespan of 10 to 20 years depending on application conditions. Whether repairing a small domestic line or reinforcing large-diameter infrastructure, SylWrap HD provides a reliable and efficient solution for pipe maintenance and emergency intervention.

Data Sheet

Key Features

High-Pressure Rated
Seals leaks in systems operating up to 430 psi (30 bar) when used with appropriate surface preparation and filler.

Temperature Resistant
Withstands continuous exposure up to 482°F (250°C) and has been tested for short-term stability up to 572°F (300°C).

Fast Application
Working time of just 2–5 minutes, with functional cure achieved in under 45 minutes.

No Mixing Required
Pre-impregnated with urethane resin for quick deployment without measuring or batching.

Long Service Life
Once cured, the bandage is chemically inert and non-toxic, with a lifespan of 10–20 years depending on conditions.

Versatile Compatibility
Bonds to steel, copper, PVC, concrete, and other pipe substrates in water, steam, oil, gas, or chemical systems.

✨ Looking for the entire kit?

SylWrap HD Pipe Repair Bandages are included in the larger Contractor Case. Check it out to cover all of your pipe repair needs!

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Recommended Applications for HD Pipe Repair Bandage

SylWrap HD is designed for structural pipe reinforcement and leak sealing in harsh conditions. It’s widely used across sectors such as power generation, water utilities, manufacturing, marine operations, and petrochemical facilities. It is especially suited for:

    • Emergency pipe repairs in the field or onboard vessels
    • Strengthening aging or corroded pipe walls
    • Wrapping over cracks or pinhole leaks
    • Reinforcing pipes exposed to vibration, pressure, or chemical attack
    • Protecting concrete pillars and steelwork from salt or environmental corrosion
    • Sealing live leaks on oil, water, or chemical lines (with safety precautions)
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Complete Technical Specifications – SylWrap HD Heavy Duty Pipe Repair

Resin impregnated fiberglass-reinforced repair tape for rapid repair of cracks and leaks in high pressure pipework.

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36,260 psi Tensile Strength
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480°F Max Service Temp

430 psi Pressure Rating
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30-45 min Functional Cure

Cure Time Development: Temperature-dependent curing for optimal performance
Cure Stage Time Notes
Working Time 2-5 minutes Dependent on water/pipe temperature
Initial Cure 7-10 minutes Material begins to harden
Functional Cure 30-45 minutes Return to service
Full Cure 24 hours Maximum properties achieved

Physical Properties: Superior performance characteristics for demanding applications
Property Value
Tensile Strength 36,260 psi
Shore D Hardness 70
Coefficient of Thermal Expansion 3.9 x 10⁻⁵ / °F
Cured Material Life 10-20 years

Service Conditions: High-performance ratings for extreme environments
Parameter Rating
Max Service Temperature 480°F (250°C)
Thermal Stability (Lab Tested) Up to 572°F (300°C)
Pressure Resistance 430 psi (30 bar)
Shelf Life (Unopened) 36 months

Available Sizes: 8 sizes for all pipe diameters
Product Code Dimensions Pipe Size (O.D.)
SYL106HD 1″ x 6 ft Up to 0.6″
SYL206HD 2″ x 6 ft Up to 1″
SYL309HD 3″ x 9 ft Up to 3″
SYL412HD 4″ x 12 ft Up to 4″
SYL616HD 6″ x 16 ft Up to 6″
SYL633HD 6″ x 33 ft Up to 12″
SYL866HD 8″ x 66 ft Up to 24″
SYL1266HD 12″ x 66 ft Large diameter / multiple wraps


Steel Mills & Power Stations

Petroleum & Marine Applications

Corrosion & Wear Protection

Chemical Resistance: Tested against acetone, ammonia, sulfuric acid (30%), ethyl alcohol, mineral spirits, gasoline, MEK, toluene, diesel, hydrochloric acid, Varsol, ethylene glycol, crude oil, and hydraulic oil (40-day test period).
Safety Notice: Contains urethane pre-polymer. Wear plastic gloves to avoid skin contact with uncured material. Refer to Safety Data Sheet for full health and safety information.

Frequently Asked Questions

How long does it take to cure?
Initial cure begins within 7–10 minutes. Full functional strength is reached in 30–45 minutes, with maximum mechanical properties achieved after 24 hours.

Can SylWrap HD be used on live leaks?
Yes, provided appropriate safety precautions are taken and an epoxy filler is used to seal the leak site before wrapping.

What chemicals can it resist?
Tested for resistance to acids, alkalis, fuels, and solvents including sulfuric acid, gasoline, diesel, ammonia, MEK, ethylene glycol, and more.

What is the shelf life?
Unopened in original foil packaging, SylWrap HD has a shelf life of at least 36 months when stored in cool, dry conditions.

Additional information

Size

25mm x 1.8m, 50mm x 1.8m, 50mm x 3.6m, 100mm x 3.6m, 100mm x 5m, 75mm x 2.7m, 75mm x 3.6m, 150mm x 5m, 150mm x 10m, 200mm x 20m, 300mm x 20m