SylWrap Cast Iron Pipe Repair Kit
The SylWrap Cast Iron Pipe Repair Kit is a specialist kit for sealing cracked and leaking cast iron pipework where there is no pressure.
It enables permanent repair in under 30 minutes to exterior or interior drain, waste, soil and supply pipes between 32mm and 150mm (1¼ – 6″) – matching standard cast iron pipe sizes. It also repairs guttering and rainwater stacks.
Repairs are pressure resistant to 30 bar and temperature resistant to 120ºC. Effective repairs can be made around difficult elbow joints and other challenging sections, offering a flexible alternative to heavy, bulky pipe repair clamps.
Fixing a leaking pipe with a Cast Iron Pipe Repair Kit costs a fraction of carrying out a pipe replacement. The Kit is suitable for domestic and industrial use and no operational training is required – simply follow the instructions provided.
For users who are regularly repairing cast iron pipework, Sylmasta also manufacture the SylWrap Drain & Waste Pipe Repair Kit.
It contains enough products to make multiple repairs to cast iron and plastic pipes, even when water is leaking through – all stored in a robust red case which is easy-to-keep on-site or on a van for immediate use when leaks are identified.
How to fix leaking cast iron pipework with a SylWrap Standard Pipe Repair Kit
The SylWrap Cast Iron Pipe Repair Kit contains Superfast Steel Epoxy Putty, CrackSeal Sealant and a SylWrap HD Pipe Repair Bandage for a two-stage repair process.
Superfast Steel is an epoxy putty in a pre-formatted stick. It seals small holes and areas of damage.
It is kneaded by hand until it turns a uniform colour and then pushed into holes and cracks in pipework whilst soft. It will harden within 5-10 minutes, sealing the leak.
CrackSeal is used for large cracks and longitudinal splits. It is extruded from its cartridge using a standard sealant gun (not supplied with the Kit) directly into the crack until it is totally filled. CrackSeal cures almost instantly, even on wet surfaces.
The initial sealant is then reinforced with SylWrap HD Bandage. Wetting the Bandage activates the resin. The Bandage is wrapped around and smoothed over the pipe with water, where it will set to provide a rock-hard, impact-resistant, protective layer.
Both Superfast Steel and SylWrap HD have WRAS Approval, meaning they are certified as safe to use on pipes carrying drink water. CrackSeal does not have WRAS Approval and cannot be used with potable water.
Applications
- Cast iron waste, drain, soil and supply pipe repairs
- Sealing leaking rainwater stacks
- Cast iron gutter repairs
- Repairing pipework in hospitals, office blocks, car parks and other public buildings where cast iron is prevalent
Benefits
- Seals leaking and cracked cast iron pipework in under 30 minutes
- Can make WRAS approved repairs on drinking water pipes
- Repairs can be be made at a fraction of the cost compared with replacement
- Easy to use with no operational training required – just follow the instructions provided
Technical Data
SylWrap Working Time:
2-5 minutes, dependent upon size of SylWrap, temperature of water and pipework.
Functional Cure:
30-45 minutes.
Full Cure:
24 hours (maximum properties).
Cured Material Life:
10-20 years, dependent upon repair quality, repair thickness, condition of pipe, environmental conditions, pipe temperature, etc.
Max Service Temperature:
120°C / 250°F.
Max Pressure Resistance:
30 bar (435 psi) using Superfast Steel depending upon nature of leak.
Chemical resistance: Acetone, ammonia, sulphuric acid (30%), ethyl alcohol, mineral spirits, gasoline, MEK, toluene, diesel, hydrochloric acid, Varsol, ethylene glycol, crude oil, hydraulic oil (test period of 40 days).
Full TDS Downloads
SylWrap Cast Iron Pipe Repair Kit Case Studies
Hospital Seal 1.05-Metre Long Crack in Cast Iron Downpipe Leaking Rainwater into Ward
SylWrap Cast Iron Pipe Repair Kit Size Guide
The below size guide details the SylWrap HD Bandage contained within each Cast Iron Pipe Repair Kit, the number of 310ml CrackSeal Sealant Cartridges and the diameter of pipe each Kit is designed to repair.
| Product Code | Bandages | CrackSeal | Pipe Diameter |
| SYL-CAST-32-50 | 1 x SYL321HD | 1 x 310ml Cartridge | 32 -50mm Pipes (1¼ - 2") |
| SYL-CAST-32-150 | 1 x SYL312HD 1 x SYL416HD 1 x SYL616HD 1 x SYL633HD | 2 x 310ml Cartridge | 32 - 150mm (1¼ - 6") |
| SYL-CAST-68-75 | 1 x SYL416HD | 1 x 310ml Cartridge | 68 - 75mm (2½ - 3") |
| SYL-CAST-100 | 1 x SYL616HD | 1 x 310ml Cartridge | 100mm (4") |
| SYL-CAST-150 | 1 x SYL633HD | 1 x 310ml Cartridge | 150mm (6") |
TDS Downloads
Please use the form to enquire about the price and availability of the SylWrap Cast Iron Kit
Related Pipe Repair Kits
SylWrap Universal Pipe Repair Kit
The Universal Pipe Repair Kit contains all the products needed to make a WRAS approved, permanent repair to burst and leaking pipes when pressure cannot be turned off.
Number of Repairs: One
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 120ºC
Live Leaks: Yes
SylWrap Drain & Waste Pipe Repair Kit
The Drain & Waste Pipe Repair Kit is a specialist kit for end-users such as facilities management teams frequently required to seal cracks and splits in cast iron and plastic drain, waste and soil pipes.
Number of Repairs: Multiple
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 120ºC
Live Leaks: Yes
SylWrap Pipe Repair Contractor Case
Designed for regular users, the Case is easily stored on-site or on-the-van for immediate emergency use. It contains enough products to make up to six WRAS approved permanent repairs.
Number of Repairs: Multiple
Pressure Resistance: Up to 30 bar
Temperature Resistance: Up to 120ºC
Live Leaks: Yes