
Superfast Steel Epoxy Putty Stick
Superfast Steel is a fast-working epoxy putty in a 114g stick used to seal holes and leaking joints in metal pipework and restore pipeline integrity by rebuilding small areas of surface damage.
It is steel-filled and specially formulated for the repair of steel, stainless steel, iron and other ferrous metal in industrial and larger domestic applications where water pressure can be turned off.
Superfast Steel has WRAS approval, meaning it is certified to British standards as safe to use on pipes carrying drinking water. Within one hour of application, systems repaired using Superfast Steel can be put back into use.
It is resistant to water, chemicals and temperature extremes and it does not rust. It contains no solvents or VOC’s, is non-flammable and releases no noxious fumes. It will not shrink or pull away and the unused portion of Steel Stick stays fresh for future use when saved in its original package.
To reinforce repairs made with Superfast Steel, Sylmasta recommend overwrapping with SylWrap HD Pipe Repair Bandage. The bandage offers a rock hard, impact resistant layer of protection.
SylWrap HD can either be purchased separately, or alongside Superfast Steel as part of the Standard Pipe Repair Kit. Both Superfast Steel and SylWrap HD are also included in the Pipe Repair Contractor Case, containing enough pipe repair products to make up to six repairs.
Superfast Steel is resistant to 150°C and pressure resistant to 30 bar. For high temperature repairs up to to 280°C, please see Superfast Titanium Epoxy Putty Stick.

How to seal a leaking metal pipe with Superfast Steel Epoxy Putty Stick
Superfast Steel Stick contains pre-measured portions of activator and base, meaning no measuring or mixing is required.
To use Superfast Steel, simply cut off the required amount of putty from the stick and mix by hand. As it is kneaded, the two contrasting colours will blend into a uniform grey to indicated successful mixing.
Whilst soft, Superfast Steel Epoxy Putty is pushed into holes and cracks in metal pipework. For rebuilding and strengthening sections weakened by corrosion, it is applied over areas of pitting and damage to increase outer pipe wall thickness.
Superfast Steel has a work life of approximately 3 minutes. Within 5-10 minutes, the epoxy putty will begin to harden and form a cohesive bond. After one hour, the pipe in question can be put back into service.
Once cured, Superfast Steel can be tapped, drilled, screwed, sawed, machined, ground, filed, or painted to create a smooth and seamless finish uniform with the pipe undergoing repair.
For more complex applications where longer than 5 minutes is needed to mix and apply epoxy putty, please see Sylmasta AB Original Epoxy Putty.
AB Original has a two-hour work time, allowing more putty to be mixed at once without threat of premature curing.
Applications
- Large domestic repairs to pipes made of steel, stainless steel, iron and other ferrous metals
- Industrial repairs to metal pipework including wastewater treatment works, quarry wash plants, dry risers, petrochemical plants, nuclear power plants, oil rigs, farms, hotels, and breweries
- Surface profile restoration to pipes damaged by corrosion
Benefits
- Easy to use – cut off amount of putty required, knead by hand, apply
- Repairs in 5-10 minutes. Systems can be turned back on after one hour
- Does not rust. Unused putty can be kept for a later repair
- WRAS approved so safe to use with drinking water
Technical Data
Hardness, Shore D:
90 (full cure, 24 hours).
Lap Shear Tensile Strength:
6.3 MPa (on steel).
Compressive Strength:
90 MPa.
Density (gm/cm3):
2.1
Shrinkage:
<1%.
Non-Volatile Content:
100%.
Electrical Resistance:
30,000 megohms.
Dielectric Strength:
300 (volts/mil).
Upper Temperature Limit:
120°C continuous.
150°C intermittent.
Chemical Resistance:
Resistant to hydrocarbons, ketones, alcohols, esters, halocarbons, aqueous salt solutions and dilute acids and bases.
Full TDS Downloads
Superfast Steel Epoxy Putty Case Studies
Boat Engine Pipe Repair Pinhole Leak in Bend of Rubber Cooling Hose
Puerto Rico Power Station Cooling System Leaking Hydrogen Line Pipe Repair
Saudi Arabia Oil Refinery 400mm GRP Pipeline External Surface Damage Repair
Quarry Wash Plant 150mm Steel Pipe 90 Degree Elbow Bend Leak Repair
90-year-old Cracked Malleable Iron Private Water Supply Pipe Repair
Flooded Underground Chamber 900mm Steel Water Main Cracked Flange Repair
Hospital Burst 300mm Air Conditioning Water Return Pipe Emergency Repair
Essex Flats Ruptured 20 bar Cast Iron Water Supply Pipe Repair & Reconnection
London Hotel Cracked Cast Iron Wastewater Pipe Elbow Repair
Furniture Factory Steel Sprinkler System Pipe Pinhole Leak Repair
Superfast Steel Epoxy Putty Videos
Superfast Steel repairs corroded pipe end
Demonstration video filmed at Sylmasta HQ showing Superfast Steel sealing a corroded pipe end.
The surface of the pipe was filed down to improve adhesion with the epoxy putty. Superfast Steel was then kneaded by hand until turning a uniform grey colour to indicate successful mixing.
Once mixed, the putty was formed into a sausage and pushed firmly around the leaking pipe end. Within five minutes, it cured to form a rock-hard material permanently bonded to the pipe, sealing the leak.
Please use the form to enquire about the price and availability of Superfast Steel Epoxy Putty Stick
Related Leak Repair Kits

SylWrap Standard Pipe Repair Kit
The Standard Pipe Repair Kit is used to make a WRAS approved, permanent repair to burst and leaking pipes when pressure can be turned off.
Number of Repairs: One
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 200ºC
Live Leaks: No

SylWrap Universal Pipe Repair Kit
The Universal Pipe Repair Kit contains all the products needed to make a WRAS approved, permanent repair to burst and leaking pipes when pressure cannot be turned off.
Number of Repairs: One
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 200ºC
Live Leaks: Yes

SylWrap Pipe Repair Contractor Case
Designed for regular users, the Case is easily stored on-site or on-the-van for immediate emergency use. It contains enough products to make up to six WRAS approved permanent repairs.
Number of Repairs: Multiple
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 200ºC
Live Leaks: Yes