Injection Systems
Water-reactive and elastic polyurethane injection resins for stopping active water leaks and permanently sealing cracks in concrete structures.
Typical applications
- Stopping active water leaks
- Permanent crack and joint sealing
- Basement and tunnel remediation
- Cracks in water-bearing structures
Products
3 products in this range
Add what you need to a quote request, or download the data sheet from the library.
Common questions
About injection systems
Can injection stop water that is actively leaking?
Yes — that is precisely what the fast-reacting polyurethane resins are made for. They react with water and expand to seal the path, and a second elastic resin is then injected for the permanent seal. Resin choice, packer spacing and pumping equipment all matter, so tell us the leak rate, the crack width and the structure type and we will supply the right resins for the situation.
What is the difference between Sika Injection-101 RC and 201 CE?
They are used in sequence, not as alternatives. Sika Injection-101 RC is a fast-foaming, water-reactive polyurethane that expands on contact with water and is used to temporarily stop significant infiltration. Sika Injection-201 CE is a very low viscosity elastic polyurethane injected afterwards to achieve the permanent seal, and it penetrates cracks from around 0.2 mm. On a crack under water pressure you normally need both.
Do you supply packers and injection equipment?
Ask us. Our core business is supplying the resins, and availability of ancillary items varies. Send your requirement with your enquiry and we will confirm what we can provide.
Always refer to the full Sika technical data sheet before application.
Need pricing or a product recommendation?
Send us your scope or product list. We'll come back with pricing and the data sheets for the right products.