Superfast Copper Epoxy Putty Stick is a fast-working, easy-to-use epoxy repair putty which makes quick and long-lasting repairs to copper, brass, bronze and other non-ferrous metals.
Sylmasta Superfast Copper is a copper-filled epoxy putty stick designed for rapid, durable repairs to copper, brass, bronze, and other non-ferrous metal surfaces. It is ideal for sealing leaks and cracks in copper pipework and fittings and has WRAS approval for use on drinking water systems. The pre-measured stick blends two components as it is kneaded by hand, eliminating the need for measuring tools. The consistency allows for easy shaping without sagging or dripping, and once cured, the material mimics the appearance and texture of copper. It can be drilled, tapped, filed, painted, or machined, making it suitable for permanent repairs in domestic, industrial, and plumbing applications. Its fast set time and chemical, water, and heat resistance make it a versatile maintenance solution for interior and exterior use.
Property | Value |
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Work Life | 3 minutes |
Handling Time | 5–10 minutes |
Full Cure Time | 1 hour |
Compressive Strength | 83 MPa |
Lap Shear Tensile Strength (Copper) | 4.8 MPa |
Hardness | Shore D 80 |
Service Temperature | Up to 120°C (continuous), 150°C (intermittent) |
Electrical Resistance | 30,000 megohms |
Dielectric Strength | 300 volts/mil |
Shrinkage | <1% |
Stick Dimensions | 22 mm diameter × 175 mm length, 114g |
Is Superfast Copper safe for use on drinking water pipes?
Yes, it is WRAS-approved, meaning it is certified for use on pipes carrying potable water.
How long does it take to return a pipe to service?
The repaired pipe can be put back into service approximately 1 hour after application.
Can this be used outdoors?
Yes, Superfast Copper is resistant to weather, water, and temperature extremes, making it suitable for both indoor and outdoor applications.
Brand | Sylmasta |
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Manufacturer | Sylmasta |