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Sylmasta Superfast Steel Original
Sylmasta Superfast Steel Original is a steel-filled epoxy putty in a 114g stick for hard, permanent repairs to steel and other metals, plus wood, glass, masonry, and many plastics. WRAS listing and a short work window help crews seal metal pipework and return systems to service within approximately one hour.
- Steel fill delivers a hard, metallic dark-grey cure that does not rust.
- WRAS-listed approval supports drinking-water pipe and fitting repairs.
- Return to service after approximately one hour keeps short metal-repair outages on track.
$41.66
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Sylmasta Superfast Steel Original - 114g Stick
Sylmasta Superfast Steel Original is a steel-filled epoxy putty stick for hard, fast-setting permanent repairs to steel and other metals, with additional bond to wood, glass, masonry, and many plastics. The 114g stick carries WRAS approval for drinking-water pipework and cures metallic dark grey for machinable, non-rusting rebuilds on plant and pipe metalwork.
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Key Features
- Steel-filled epoxy sets hard for permanent repairs on steel and other metals.
- 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 metal seals.
- Also bonds to wood, glass, masonry, and many plastics for mixed plant substrates.
- Return to service after approximately one hour per TDS for short maintenance windows.
- Metallic dark-grey cure does not rust and machines cleanly after set.
- Solvent-free and VOC-free; unused stick stays fresh in original packaging for later cuts.
Technical Specifications
| Property | Value |
|---|---|
| Product code | SFST |
| 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) | 90 |
| Lap shear tensile (steel) | 6.3 MPa |
| Compressive strength | 90 MPa |
| Density | 2.1 g/cm³ |
| Upper temperature (continuous / intermittent) | 120°C / 150°C |
Product documents: Sylmasta Superfast Steel Technical Data Sheet
Frequently Asked Questions
What does Sylmasta Superfast Steel Original repair on metal plant?
Superfast Steel contains steel for hard, fast-setting permanent repairs to anything made of steel or other metals. It also bonds to wood, glass, masonry, and many plastics. Typical work includes sealing metal pipework and rebuilding worn or damaged metal surfaces where a hard, non-rusting fill is required.
How fast is the Superfast Steel work life and return-to-service window?
Work life is approximately 3 minutes. Within 5–10 minutes Superfast Steel hardens and forms a cohesive bond. After one hour, the TDS states the system can be put back into service.
Does Superfast Steel Original have WRAS drinking-water approval?
Yes. Superfast Steel has WRAS approval and is certified as safe to use on pipes and fittings carrying drinking water. Confirm site acceptance of WRAS-listed materials before specifying for potable circuits.
What hardness and compressive strength does the Superfast Steel TDS publish?
Full-cure Shore D hardness for Superfast Steel is 90. Lap shear tensile strength on steel is 6.3 MPa and compressive strength is 90 MPa. Density is 2.1 g/cm³ with shrinkage under 1%. Values are typical for information only.
What upper temperature limits apply to cured Superfast Steel?
Continuous service is listed to 120°C and intermittent service to 150°C. Store unused stick out of direct sunlight in dry, frost-free conditions between 5°C and 24°C. The Technical Data table lists a 24-month minimum shelf life at 24°C; the Storage paragraph also states 18 months; see live-check note.
Can cured Sylmasta Superfast Steel be machined without rusting?
Yes. Superfast Steel cures metallic dark grey and can be tapped, drilled, screwed, sawed, machined, ground, filed, or painted. The TDS states it does not rust. The epoxy is solvent-free and VOC-free, non-flammable, and will not shrink or pull away when setting.
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