Superfast Copper Epoxy Putty is a comprehensive repair solution engineered for maintenance professionals who need a dependable fix for copper and non-ferrous metal systems. Whether responding to a sudden leak or performing routine upkeep, this stick provides everything needed for fast, clean, and durable repairs. Each stick contains pre-measured epoxy resin and hardener combined in a single, hand-kneadable format — eliminating the need for mixing trays or measuring devices.
Designed for use on copper, brass, bronze, and even ferrous metals, the epoxy bonds securely to a wide range of materials, including glass, masonry, wood, and most plastics. It can be applied directly to damp surfaces, holds up in chemically aggressive environments, and cures quickly — forming a structural-strength bond that resists pressure, vibration, and temperature fluctuations. Stored in a compact case for field readiness, the Sylmasta Superfast Copper Epoxy Stick is built for jobs where speed, simplicity, and performance matter.
Key Features
No Tools Required
Pre-measured epoxy stick format eliminates the need for mixing containers or tools — just knead and apply.
Fast Cure Time
3-minute work life and functional strength achieved in under 10 minutes; ready for service in 1 hour.
High Mechanical Strength
696 psi (4.8 MPa) lap shear strength on copper and 12,038 psi (83 MPa) compressive strength provide structural durability.
Resists Harsh Environments
Withstands continuous temperatures up to 248°F (120°C) and is resistant to water, fuels, alcohols, salts, and dilute acids.
Versatile Material Compatibility
Bonds to copper, brass, bronze, ferrous metals, wood, masonry, glass, and most plastics.
Recommended Applications for Superfast Copper Epoxy Putty
The Sylmasta Superfast Copper Epoxy Stick is suited for professionals working in plumbing, HVAC, plant maintenance, and facility repair. Its compact form factor and ease of use make it ideal for mobile teams and service calls where fast, clean solutions are essential.
Common uses include:
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- Emergency repairs on leaking copper pipes and fittings
- Patching pinholes or cracks in non-ferrous pipework
- Sealing connections where downtime must be minimized
- Bonding dissimilar materials in mechanical assemblies
- Filling voids, holes, or surface defects in copper structures
- Temporary or permanent repair of HVAC tubing and coils
Complete Technical Specifications – Superfast Copper Epoxy Putty Stick
Fast-setting epoxy putty for permanent repairs to copper, brass, bronze and other metals. WRAS approved for drinking water applications.
12,038 PSI Compressive Strength
248°F Continuous Service
3 min Working Time
No Solvents or VOCs
Non-Flammable
Machinable When Cured
Interior & Exterior Use
Chemical Resistant
Frequently Asked Questions
How do I know when the epoxy is fully mixed?
When kneading the stick, the two colors blend into a uniform tone — this indicates complete mixing.
Can this product be used in wet environments?
Yes. It adheres to damp surfaces and can be used for interior or exterior applications. Ensure surfaces are clean and as dry as possible for best performance.
What temperatures can it withstand once cured?
It handles continuous temperatures up to 248°F (120°C) and intermittent exposure up to 302°F (150°C).
How long does it take to cure?
The epoxy sets within 5–10 minutes and reaches functional strength in about 1 hour.
Can it be drilled or machined after curing?
Yes. Once cured, it can be drilled, tapped, machined, filed, or painted.
