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RESINBAU · INJECTION SYSTEMS
A four-component acrylic system with very low viscosity. It forms a soft, flexible hydrogel for sealing, structural injection and curtain injection. Adjustable reaction time allows the injection process to suit site conditions. Water-dependent swelling and shrinkage are reversible.
The 4K system is applied using a two-component stainless-steel pump. Prepare two working mixtures (A1 + A2 and B1 + B2), which meet at a 1:1 ratio in the mixing head. Follow the technical data sheet when selecting reaction time.

| System | 4K |
|---|---|
| Working-mixture ratio by volume | 1:1 |
| Viscosity at +20°C | 5–15 mPa·s |
| Adjustable reaction time | ~20 s – 12 min |
| Water absorption | 33% |
Source: ResinBau 2026 catalogue. Values apply to the stated test conditions. Select the injection method and mixing procedure according to the current product technical data sheet.
| Variant | With Polymer (43kg), Without Polymer (23kg) |
|---|