FEATURED PRODUCT
A leaking or damaged pipe can instantly lead to costly water damage, production downtime, and operational disruption. Rapp-it Pipe Repair Bandage—supplied by Waldan International Pte Ltd—delivers a rapid, high-strength solution for emergency repairs across Singapore and regional markets.
Rapp-it is a self-contained repair system combining a steel-reinforced epoxy putty with a water-activated polyurethane resin bandage. It hardens within minutes to create a durable, pressure-resistant seal over pinholes, cracks, and corroded pipework—requiring zero specialist tools or hot work permits.
Engineered for versatility, Rapp-it bonds effectively to steel, copper, PVC, poly pipe, fibreglass, and cast iron. It is the trusted choice for facility maintenance teams across marine, offshore, manufacturing, commercial, and hospitality sectors.
Water-activated repair bandage — resin-saturated fibreglass tape supplied
Rapp-it Steel Putty — epoxy putty stick to seal the leak point before wrapping.
Protective gloves & instructions — everything needed for a single emergency repair.
SIMPLE TO APPLY
Shut down the line, glove up, then clean and roughen the damaged area with a file or wire brush.
Knead the Steel Putty to a uniform grey and press it firmly into the damage. Work within 2–5 minutes.
Soak the bandage in fresh 22–26°C water for 10–20 seconds, squeezing once or twice to activate.
Wrap around the damage, extending 50mm each side, pulling every layer tight for a strong repair.
With wet gloves, squeeze with a rotating motion until the resin stops foaming. Sets rock-hard in ~30 minutes.
Application steps and imagery courtesy of Rapp-it (piperepair.com.au).
Did you know a successful pipe repair can be achieved in only 30 minutes?
It’s simple to use — no mixing or measuring required. Keep Rapp-it on hand so you’re always covered.
Emergency repair solutions for leaking and damaged pipework aboard vessels, shipyards, offshore facilities and marine maintenance operations.
Rapp-it can be kept by maintenance teams for emergency leaking pipes in kitchens, plant rooms, HVAC systems and building services.
Suitable for maintenance teams requiring a rapid-response solution for damaged process and utility pipework.
Industrial pipe repair solutions for maintenance and emergency response applications, subject to operating conditions and product suitability.
Emergency repair solutions for leaking water pipes and related maintenance applications.
If you have a pipe that needs repairing, Rapp-it can help.
Unexpected pipe leaks can disrupt hotel operations, damage property and inconvenience guests. Rapp-it gives maintenance teams a fast, reliable way to stabilise leaks and keep facilities running smoothly — often without a full replacement or extended downtime.
BEFORE
AFTER
A corroded, leaking joint stabilised in minutes with a Rapp-it wrap — no replacement, no extended downtime.
Stems leaks in spots where a full replacement is difficult, inaccessible, or would mean extended downtime.
Stabilise leaks in guest rooms, kitchens, laundry or plant rooms without unnecessary service interruptions.
Cures into a composite wrap that reinforces the pipe and withstands operating pressure and temperature.
Suitable for copper, steel, PVC and other plumbing systems found throughout hotels.
Full specifications for the Rapp-it Pipe Repair System — tap any section to expand.
| Resin makeup | Water-activated polyurethane resin on woven fibreglass |
|---|---|
| Temperature resistance | 150°C (300°F) |
| Pressure resistance | Internal pressure up to 2,500 kPa (360 psi) |
| Bonds to most pipes | Steel, Polypipe, PVC, Fibreglass, Copper |
| Set time | 20–30 minutes; sets under water |
| Chemical, fuel & oil resistant | Acid lines, oils, gas, sea water, MDISC |
| Certifications | NATO codified; Potable water (AS/NZS 4020:2018) |
| Bandage size | Part no. |
|---|---|
| 50mm × 3.6m (2″ × 12′) | RAP122 |
| 75mm × 3.6m (3″ × 12′) | RAP123 |
| 100mm × 3.6m (4″ × 12′) | RAP124 |
| 100mm × 4.8m (4″ × 16′) | RAP164 |
| 100mm × 9m (4″ × 30′) | RAP304 |
| Shore D hardness (full cure, 24h) | 80 |
|---|---|
| Lap shear tensile strength | On steel — 400kg (6.2 MPa) |
| Compressive strength | 8,000 psi (55 MPa) |
| Temperature limits | Continuous −40° to 121°C; intermittent up to 149°C (300°F) |
| Work life | 2–5 minutes; tenacious bond after 5–10 minutes |
| Functional cure time | Approx. 30 minutes |
| Chemical resistance | Resistant to hydrocarbons, ketones, esters, alcohols, halocarbons, aqueous salt solutions, dilute acids and dilute bases. Contact us for specific advice. |
| Certifications | NSN codified; Potable water (AS/NZS 4020:2018) |
Rapp-it Pipe Repair Products are NSN codified and have been used for decades by the Australian Navy. NATO stock numbers are awarded only to quality-assured products — available on request.
Both the bandage and Steel Putty comply with Australian Standard AS/NZS 4020:2018 for products in contact with drinking water.
Proof pressure tested to 725 psi (5,000 kPa) on 50mm poly pipe, and to 1,810 psi (12,500 kPa) on 25mm poly pipe — each with a 10mm drilled hole. Ratings vary with pipe type and damage.
Thermal analysis testing established a continuous temperature limit of 150°C, with intermittent exposure withstood up to 250°C.
50mm bandages rolled to five layers and submerged in each chemical for one month.
| Solution | Bandage colour | Bandage integrity |
|---|---|---|
| Hydrochloric Acid 30% | Severe discolouration | No softening |
| Sulfuric Acid 30% | Slight discolouration | No softening |
| Caustic Soda 20% (NaOH) | No colour change | Slightly reduced hardness; integrity maintained |
| Caustic Soda 50% (NaOH) | No colour change | Slightly reduced hardness; integrity maintained |
| Ethanol | No colour change | No softening |
| Diesel | No colour change | No softening |
| Gasoline | No colour change | No softening |
| MEK | Slight discolouration | No softening |
| Xylene | Slight discolouration | No softening |
| Mineral Spirits | Slight discolouration | No softening |
| Pure Water | No colour change | No softening |
| Acetone | Slight colour change | No softening |
| Toluene | No colour change | No softening |
| Nitric Acid 50% | Severe discolouration | Slightly reduced hardness; integrity maintained |
All appropriate PPE and safety measures must be followed. Refer to the SDS and contact us for specific advice.
Specifications sourced from Rapp-it (piperepair.com.au). Pressure and temperature ratings vary with pipe type and damage.
Real Rapp-it repairs from mining, power generation, food processing and heavy industry — where a fast repair meant no unplanned shutdown.
A pin-hole leak appeared above a previous steel-patch weld on an acid column outlet bend. Steel Putty stemmed the leak and a 100mm × 3.6m bandage went over the top — the line ran at full capacity 30 minutes later.
"An outstanding product for all applications."
An overhead leak on a 100mm water main sat dangerously close to electrical conduits. Steel Putty plus 100mm × 4.8m bandages made it fully functional in 30 minutes — letting the team budget a planned replacement.
"No leakage was detected upon return to service."
An overhead leak in a corroded line threatened to halt production overnight. A 100mm × 9m bandage over Steel Putty had the line back at full capacity in 30 minutes. Over 94% of Australian sugar mills use Rapp-it.
"We could keep our operations functional during the night."
Leaking 1992-vintage cement stormwater pipes sat directly above a stage holding hundreds of thousands of dollars of lighting, electronics and costumes. A 50mm × 3.6m bandage sealed the leaks.
"Rapp-it has sealed the leaks so the show can go on."
Abrasive nickel sludge damaged a material-handling hose that could not be welded or clamped. Twenty-three 100mm × 4.8m bandages wrapped the damaged area — running at full capacity 30 minutes later.
"Rapp-it has sealed the leaks so the show can go on."
Fine ore particles wore a hole in a pipe before the valve. Rather than shut down the gold plant, Steel Putty and a 100mm × 9m bandage repaired it in place until scheduled maintenance.
"We use your pipe repair product almost daily."
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