SylShield Pipe Weld & Protection Wrap
SylShield is a water-activated composite wrap with extreme thickness which is used for the protection of pipelines and weld joints subjected to intense processes such as trenchless pipe installation.
It is three times as thick as a standard SylWrap HD Pipe Repair Bandage, offering a much more robust protective outer shell capable of withstanding the rigours of horizontal directional drilling, auger boring, impact moling and microtunnelling.
Using SylShield to protect pipes and welds from damage and scarring prior to trenchless installation avoids the need for making pipeline repairs after pull back.
In harsh environments such as mines, quarries and onshore and offshore pipelines, SylShield provides better protection than other composite wraps against abrasion, corrosion and chemical attack because of the thickness of the fibreglass.
This extra thickness also allows layers of protection to be built up more quickly with less wrapping required. SylShield is effective on pipes of all sizes made of steel, stainless steel, copper, malleable iron, GRP, ceramic, most plastics, clay, concrete, rubber, and lead.
The fast-working resin in SylShield allows application to take place in under 10 minutes. Unlike other moisture cured pipe weld and protection wraps, SylShield contains less than 0.1% free diisocyanate.
This means it is not covered by the 2023 EU and UK REACH legislation governing the safe use of diisocyanates and requires no mandatory safety training before use. At the same time, the low hazard formulation offers reduced risk to operators.
How to protect a pipe weld or pipeline using SylShield
SylShield is easy to use. It can be applied directly to the outer surface of pipes, welds and joints. It can also be wrapped over other protective measures such as anti-corrosion coatings, brushable epoxies, shrink sleeves and composites to enhance protection.
The resin in the composite wrap is activated using water. SylShield is then wrapped and smoothed around the pipe weld or pipeline. Further water is used to smooth the wrap down as the application continues.
A compression film can be applied over SylShield whilst it cures to improve lamination to the pipe. If a compression film is used, it should be perforated after application to allow SylShield to degas curing.
SylShield has a work time of 2-5 minutes. Repairs can be completed in under 30 minutes and a functional cure is achieved in 45 minutes. SylShield reaches maximum properties in 24 hours.
Applications
- Protecting pipes and welds undergoing trenchless installation, including horizontal directional drilling, auger boring, impact moling and microtunnelling
- Reinforcing onshore and offshore pipelines
- Enhancing protection provided by anti-corrosion coatings, epoxies, shrink sleeves and other composite wraps
- Protection of pipes in highly abrasive environments, such as mines and quarries
Benefits
- Easy to use – simply activate SylShield using water and wrap
- Extreme thickness offers more robust protection against impact damage and abrasion
- Avoids the need to make pipeline repairs after pull back
- Cures quickly for a full strength repair inside 45 minutes
- Low hazard formulation is safer for operators and means no mandatory safety training required under 2023 safe use of diisocyanate legislation
Technical Data
Working Time:
2-5 minutes, dependent upon size of SylWrap, temperature of water and pipework.
Functional Cure:
30-45 minutes.
Full Cure:
24 hours (maximum properties).
Cured Material Life:
10-20 years, dependent upon repair quality, repair thickness, condition of pipe, environmental conditions, pipe temperature, etc.
Shore D Hardness:
70.
Tensile Strength:
250MPa.
Max Service Temperature:
120°C / 250°F.
Chemical resistance: Acetone, ammonia, sulphuric acid (30%), ethyl alcohol, mineral spirits, gasoline, MEK, toluene, diesel, hydrochloric acid, Varsol, ethylene glycol, crude oil, hydraulic oil.
Full TDS Downloads
SylShield Pipe Weld & Protection Wrap Case Studies
Czech Republic Natural Gas Pipeline Protection Before Trenchless Pipe Installation
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