SylWrap HD Pipe Repair Bandage

£15.50£200.34 inc. Vat

Water activated composite pipe repair bandage for strengthening, protecting, reinforcing and increasing the lifespan of pipes

SKU: SYL-HD Categories: ,


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

A SylWrap Repair Bandage strengthens pipes and structures made from steel, copper, malleable iron, GRP, ceramic, clay, and most plastics. The Pipe Repair Bandage increases pressure resistance, chemical resistance and hoop strength, and extends the lifespan of metalwork and other materials.

SylWrap HD is also used to reinforce repairs made with other Sylmasta products. Applying a Pipe Repair Bandage over a leak sealing material such as Superfast Epoxy Putty or Wrap & Seal Pipe Burst Tape provides a rock hard, impact resistant layer over the initial sealant, offering a permanent solution. SylWrap HD has WRAS approval and so can be used with drinking water.

SylWrap Bandages have been used to make repairs in desalination plants, wastewater treatment works, nuclear power plants, fire stations and to water supply lines. Their high chemical resistance have seen them fix hydrogen lines and sulphuric acid lines while many water utilities companies keep SylWrap HD on their vans for reinforcing repairs to leaking pipes and burst water mains.

How to use a SylWrap HD Pipe Repair Bandage to repair and protect pipes

To use SylWrap, you dip the bandage in water which activates the resin. You then wrap the bandage around the pipe or structure which requires strengthening, smoothing the bandage down with additional water as you go.

Bandages have a work time of 2-5 minutes and repairs carried out with a Pipe Repair Bandage can be made in less than 30 minutes.

SylWrap Pipe Repair Bandage is available as part of the Universal Pipe Repair Kit for fixing live leaks. The Kit includes a single bandage along with two sealing materials and is suitable for repairing all types of pipes.

As well as SylWrap HD, Sylmasta also manufacture two specialised composite repair wraps. SylWrap CR is infused with corrosion inhibitors to protect and strengthen metalwork against all forms of corrosion and SylWrap FR is a flame retardant wrap for use on pipes which are subjected to extreme temperatures.

Benefits of SylWrap HD Pipe Repair Bandage

  • 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
  • Refurbishment and strengthening of pipes offers a cheaper alternative to replacing systems
  • Increases pressure resistance, chemical resistance and hoop strength of pipes


  • Copper pipe repair, PVC plastic pipe repair, steel pipe repair, iron pipe repair, GRP pipe repair, ceramic pipe repair, concrete pipe repair, lead pipe repair, rubber pipe repair
  • Underwater repairs
  • WRAS approved for use on pipes carrying drinking water
  • Pipe repairs at wastewater treatment works, quarry wash plants, dry risers, petrochemical plants, nuclear power plants, oil rigs and breweries

Pipe Size Guide

Product Code Bandage Size Pipe Diameters
SYL106HD 25mm x 1.8m Up to 15mm
SYL206HD 50m x 1.8m 15 - 25mm
SYL212HD 50mm x 3.6m 25 - 50mm
SYL309HD 75mm x 2.7m 25 - 50mm
SYL312HD 75mm x 3.6m 50 - 75mm
SYL412HD 100mm x 3.6m 50 - 100mm
SYL416HD 100mm x 5.0m 75 - 125mm
SYL616HD 150mm x 5.0m 100 - 150mm
SYL633HD 150mm x 10.0m 150 - 300mm
SYL866HD 200mm x 20.0m 300 - 600mm
SYL1266HD 300mm x 20.0m Larger pipes

Case Studies

A 150mm steel pipe elbow bend leaking at a quarry wash plant undergoes repair with a SylWrap Standard Pipe Repair Kit
When a quarry in the UK could not fit a pipe repair clamp around a leaking 150mm steel 90 degree elbow bend, they instead used a SylWrap Pipe Repair Kit to seal the line
A steel pipe in a district heating system leaking from a pinhole undergoes a live leak repair using a SylWrap Pipe Repair Contractor Case
A steel pipe suspended in the ceiling of a building as part of a district heating system undergoes a live repair after a pinhole leak began causing substantial water damage
A SylWrap Pipe Repair Kit is used to seal a crack on a 90-year-old malleable iron water supply pipe
With replacement fittings for a cracked 90-year-old malleable iron pipe no longer manufactured because of its age, a repair solution was needed to avoid replacing the entire line
A 1500mm line in a seawater cooling system undergoes repair after it began leaking from a broken off nozzle
The main supply line in a seawater cooling system undergoes urgent repair and reinforcement after a snapped nozzle began discharging water 5 metres into the air
A SylWrap Live Leak repair made to a pinhole leak on a 6 bar 150mm elbow joint with a pinhole leak
An elbow joint leaking from a pinhole in a Malaysia pumping house undergoes a live leak repair under 6 bar pressure which enabled systems to remain operational
Sylmasta repair a 200mm underground oil fuel line in Brega, Libya suffering from a crack caused by heavy corrosion
A corroded underground 200mm fuel oil in Libya leaking through a small crack is sealed with a repair pressure resistant to 44 bar and capable of withstanding temperatures of up to 70°C
A copper pipe in a camper van boiler system undergoes repair using Superfast Copper Epoxy Putty and a SylWrap HD Pipe Repair Bandage
A camper van owner repairs a very difficult-to-access copper pipe in the van's boiler system which was leaking water through a large crack whenever the boiler was turned on
A leaking 100mm UPVC pipe at Bahrain International Airport undergoes a live leak repair using a SylWrap Pipe Repair Contractor Case
Systems are kept operational at Bahrain International Airport thanks to an under pressure repair on a 100mm UPVC pipe leaking from a step joint
A 100mm pipe elbow undergoes reinforcement after the sulphuric acid line it was part of was found to have degraded by 21mm thickness
An elbow on a 100mm sulphuric acid pipeline which had degraded from 22mm thickness to just 1mm undergoes urgent reinforcement in a petrochemical refinery in Saudi Arabia
A 2 metre section of 650mm pipe buried in an inspection chamber was discovered to be leaking, excavated and then sealed using SylWrap pipe repair products
Coupling joints connecting a 2 metre long section of 650mm ductile iron pipe with a water line buried in an old inspection pit are sealed after they were discovered to be leaking
A PCCP pipe stub leaking through several cracks undergoes a live leak repair in Saudi Arabia
After several failed repair attempts, a cracked 250mm PCCP stub under 4 bar pressure with no isolation valve in Saudi Arabia undergoes a live leak repair followed by reinforcement
A water return pipe in a Lonndon hospital air conditioning unit undergoes a SylWrap repar to ensure that the system could remain in operation
On a day when temperatures in London hit 27ºC, a burst 300mm pipe forced the shutdown of a hospital air conditioning system until a SylWrap repair was made
A longitudinal split in a plastic hose supplying water to a bond undergoes repair with a SylWrap Universal Pipe Repair Kit
Landscaping work caused a 80mm longitudinal split to a buried plastic hose supplying water to a pond with a wider 300mm damage area successfully repaired by Sylmasta
Reinforcement of 22 degree elbows on cast iron water mains carried out by Sylmasta
An elbow joint blow out alerted a water company that mains in their valve chamber were below spec, with Sylmasta reinforcing the pipes to prevent similar incidents happening in future
Pipe bridges leaking from rusting riveted joints undergo a leak repair and reinforcement using SylWrap HD Pipe Repair Bandage
Two 20m pipe bridges leaking sewage into a stream from numerous corroded joints undergo repair and reinforcement, extending their lifespan at a fraction of the cost of replacement
Pipe repair of a central heating system in a church which had begun to leak around a welded joint suffering from corrosion
Sylmasta repair heavy damage and encapsulate a leaking welded joint between a 100mm cast iron pipe and a 50mm steel pipe in a church central heating system
A stainless steel pipe in a biomass power plant at a UK farm required a different live leak repair using a SylWrap Universal Pipe Repair Kit
Leaking stainless steel pipework located 20 feet up the inside of a heating tank in a farm's biomass plant could only be reached via a ladder, requiring a lightweight repair method
A 900mm steel pipe in an oil well in Argentina was badly corroded and leaking before Sylmasta carried out a repair
Corrosion caused a 900mm steel pipe in an oil well to rupture and when a repair clamp failed to seal the crack because it was located on a tee, Sylmasta provided a flexible alternative
Repair of a heavily corroded pipe in a district heating system made using a SylWrap Universal Pipe Repair Kit
The repair of leaking, corroded pipes in a district heating system ensured a council did not have to turn residents' heating off in the depths of winter to fit replacement parts
A pierced plastic pipe in a quarry wash plant undergoes a leak repair using a SylWrap Standard Pipe Repair Kit
A pierced 300mm plastic pipe feeding the aggregate wash plant at a quarry in the United Kingdom undergoes leak repair, avoiding a disruptive shutdown to fit a replacement
A ruptured cast iron water supply pipe is removed, repaired and then reconnected to the water network in a Sylmasta pipe repair
A ruptured section of a 100-year-old cast iron water supply pipe is removed, repaired and reconnected to the network with a Sylmasta repair holding 20bar pressure
Pipe repair carried out to a wastewater pipe made of cast iron in a central London hotel
A cracked cast iron wastewater pipe in a London hotel required a quick repair to prevent one of the most prestigious rooms having to be closed to the public
Repair of a plastic PVC pipe which formed part of a swimming pool filtration system in a leisure centre
Live leak repair carried out to an inaccessible PVC plastic pipe which formed part of a swimming pool filtration system, negating the need for the disassembly of half the system
The repair of a leaking pipe in a sprinkler system at a British furniture company's workshop carried out using a SylWrap Standard Pipe Repair Kit
A furniture company repaired a pinhole leak on a steel pipe in their factory's sprinkler system after being initially informed that the only solution was to replace the damaged section
Repair of a leaking hot water pipe on a farm carried out using a SylWrap Universal Pipe Repair Kit
After contractors accidentally cut into an underground heating pipe with insulation lagging during construction work on a farm, a live leak repair kept the hot water on
A CHP System Repair carried out on a leaking pipe in a pant at an automotive safety supplier in the United Kingdom
A live leak repair to a high temperature elbow in a CHP Plant ensured an automotive safety supplier factory did not undergo a disruptive shutdown of power for a replacement
A contaminated water pipe repair carried out in a Power Plant in Puerto Rico using Sylmasta products
The repair of a contaminated water pipe in a Puerto Rican Power Station helped keep the plant working at full capacity when Hurricane Maria hit the island
A live repair carried out on a water main which had been leaking for the previous 15 years
A burst underground steel water main in the UK which had been leaking for 15 years after being written off as unrepairable is finally sealed in a live leak repair
A contaminated water pipe at a wastewater treatment works in the United Kingdom is repaired after being accidentally breached during construction work
Catastrophe was averted at a Wastewater Treatment Works in the UK thanks to a live leak repair carried out after a contaminated water pipe was mistakenly cut through


SylWrap HD Pipe Repair Bandage application in the Sylmasta Lab
The application of a SylWrap Pipe Repair Bandage to a pinhole leak which has already been sealed.

YouTube video


High pressure live leak repair on a steel pipe
SylWrap Bandage is used to overwrap a live leak repair made using Wrap & Seal Pipe Burst Tape, providing a protective layer to turn the repair into a permanent solution.

YouTube video


Live leak repair on a 6″ elbow joint
A pinhole live leak repair involving SylWrap HD carried out on a 6″ steel pipe elbow joint at a pumping station in Malaysia.

YouTube video


Live leak repair on a 95mm steel pipe
A test live leak repair carried out to a 95mm steel pipe at Sylmasta HQ.

YouTube video

PDF Downloads

Data Sheets
SylWrap HD Pipe Repair Bandage

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