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Sylmasta Superfast Copper 114g
Sylmasta Superfast Copper is a copper-appearance epoxy putty in a 114g stick for permanent repairs to copper, brass, bronze, and other non-ferrous metals, plus ferrous metals, wood, glass, masonry, and many plastics. WRAS listing and a short work window help crews seal copper pipework and return systems to service within the hour.
- Cures with copper-like appearance and texture for discreet pipe and fitting rebuilds.
- WRAS-listed approval supports drinking-water pipe and fitting repairs.
- Service return after approximately one hour keeps short outages on schedule.
$38.55
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Sylmasta Superfast Copper - 114g Stick
Sylmasta Superfast Copper is a fast-setting epoxy putty stick formulated to match the look and texture of copper for permanent repairs to copper, brass, bronze, and other non-ferrous metals. The 114g stick also bonds to ferrous metals, wood, glass, masonry, and many plastics, with WRAS approval for drinking-water pipework and a rapid path back into service.
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Key Features
- Copper-matched cured appearance blends rebuilds into copper, brass, and bronze assemblies.
- WRAS approval certifies use on pipes and fittings carrying drinking water.
- Approximately 3-minute work life with cohesive bond in 5–10 minutes for emergency copper pipe seals.
- Bonds to non-ferrous and ferrous metals plus wood, glass, masonry, and many plastics.
- Return to service after approximately one hour per TDS for short maintenance windows.
- Machinable after cure: tap, drill, saw, grind, file, or paint the finished repair.
- Solvent-free and VOC-free; unused stick stays fresh in original packaging between cuts.
Technical Specifications
| Property | Value |
|---|---|
| Product code | SFCOP |
| Pack size | 114g stick (nominal Ø22 mm × 175 mm) |
| Work life | Approximately 3 minutes |
| Cohesive bond / harden | 5–10 minutes |
| Return to service | After 1 hour |
| Shore D hardness (full cure, 24 h) | 80 |
| Lap shear tensile (steel / copper) | 4.5 MPa / 4.8 MPa |
| Compressive strength | 83 MPa |
| Density | 1.9 g/cm³ |
| Upper temperature (continuous / intermittent) | 120°C / 150°C |
Product documents: Sylmasta Superfast Copper Technical Data Sheet
Frequently Asked Questions
What metals does Sylmasta Superfast Copper target on the job?
Superfast Copper makes fast, permanent repairs to copper, brass, bronze, and other non-ferrous metals, and is most commonly used on copper pipework. It also bonds to ferrous metals, wood, glass, masonry, and many plastics for mixed-substrate plant repairs.
How quickly does Superfast Copper set and return to service?
Work life is approximately 3 minutes. Within 5–10 minutes Superfast Copper hardens and forms a cohesive bond. After one hour, the TDS states the system can be put back into service.
Is Sylmasta Superfast Copper approved for drinking-water lines?
Yes. Superfast Copper has WRAS approval and is certified as safe to use on pipes and fittings carrying drinking water. Verify local acceptance of WRAS-listed materials for your potable circuit.
Which strength figures does the Superfast Copper TDS list after cure?
Full-cure Shore D hardness for Superfast Copper is 80. Lap shear tensile strength is 4.5 MPa on steel and 4.8 MPa on copper. Compressive strength is 83 MPa. Density is 1.9 g/cm³ (15.8 lb/gal). Values are typical for information only.
What continuous and intermittent temperature limits apply to Superfast Copper?
Upper temperature limits are 120°C continuous and 150°C intermittent. Store unused stick out of direct sunlight in dry, frost-free conditions between 5°C and 24°C for a 24-month shelf life from manufacture.
Can cured Superfast Copper be drilled, machined, or painted?
Yes. Once cured, Superfast Copper can be tapped, drilled, screwed, sawed, machined, ground, filed, or painted. The epoxy contains no solvents or VOCs, is non-flammable, and will not shrink or pull away when setting.
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