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Cements vs. Polyurethane Grout
| Cement | Polyurethane Grout |
|---|---|
| Bulky application equipment | Simple application equipment |
| Delayed set times | Adjustable set times to suit conditions |
| Limitations in flowability and fracture size | As a viscous material, injection into the finest fractures |
| Final strength in days | 90% cure in minutes or seconds |
| Poor performance in wet conditions | Extremely effective in or around water |
| Shrinkage a problem upon cure (often requires re-application) | Maintains positive pressure when cured |
| Very poor adhesive properties | Excellent adhesion even in water |
| Often presents environmental problems | Many of our formulations are NSF-61 approved for use in Potable Water |
| Susceptible to washout | Will re-constitute even in flowing water |
| Injection ceases with cessation of pumping Even after cessation of pumping material will self-inject | Up to 13,700 PSI compressive strength |
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