CONJECT PUR is a two-component, low-viscosity polyurethane injection resin that cures to form a ductile, elastic, and waterproof membrane. Designed for use in structural, civil, and underground construction, it effectively seals and fills cracks, joints, and voids under both dry and pressurized water conditions. Despite being a two-component system, it is compatible with single-component pumps, simplifying application. CONJECT PUR penetrates deeply, forming a watertight, non-foaming structure with excellent flexibility. Its low surface tension allows easy access to fine voids, ensuring long-term waterproofing and structural movement tolerance in challenging environments.
Conject PUR is a two-component polyurethane resin that is mixed and then injected with a single component pump to form an elastic, waterproof seal.
Summary of the method in the Conject Pur Technical Data Sheet. Always follow the full TDS on site.
| Standard | Title | Referenced for |
|---|---|---|
| EN 1504-5 | Products and systems for the protection and repair of concrete structures — Concrete injection | Listed in the TDS |
| ISO 2811-1 | Paints and varnishes — Determination of density — Pycnometer method | Listed test method (density) |
| EN ISO 3219 | Plastics — Polymers/resins in the liquid state or as emulsions or dispersions — Determination of viscosity using a rotational viscometer with defined shear rate | Listed test method (viscosity) |
| EN 12618-1 | Products and systems for the protection and repair of concrete structures — Test methods — Adhesion and elongation capacity of injection products with limited ductility | Listed test method for concrete injection products |
| EN 12618-2 | Products and systems for the protection and repair of concrete structures — Test methods — Determination of the adhesion of injection products, with or without thermal cycling — Adhesion by tensile bond strength | Listed test method for concrete injection products |
Standards and test methods as referenced in the Conject Pur Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.
Conject PUR is mixed 1:1 by volume. Mix components A and B thoroughly for about 2 minutes until homogeneous.
Yes. Although it is a two-component system, its long pot life allows it to be pumped with a single component injection pump; gel time is 60 minutes at 20°C.
No. It forms a watertight, non-foaming pore structure, and in the absence of water it does not expand and continues to penetrate the cracks. For major water leakages, Conject PUF 95 should be injected first.
Application temperature is 5 – 40°C, and the application time is approx. 60 minutes.
Standard packing is 10 Ltr. Store in original sealed packages between +5˚C and +30˚C in dry conditions for 12 months; the same requirements apply to transport.
