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.
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!
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:
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- 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)
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.
36,260 psi Tensile Strength
480°F Max Service Temp
430 psi Pressure Rating
30-45 min Functional Cure
Steel Mills & Power Stations
Petroleum & Marine Applications
Corrosion & Wear Protection
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.

