Description System 1 is a two-component polyurethane formula that has excellent memory and density, and can be applied in virtually any weather conditions. System 1 will perform well in either production gangs with a machine/ operator or with section crews to handle smaller jobs with hand gun systems. **Sold in cases of 12** Hand Cartridge Specially formulated two-component polyurethane with excellent memory. Insensitive to moisture and can be applied in extreme heat or cold. Excellent for filling all tie cavities, especially spike holes and it will not shrink after curing. Designed to be flexible in its application. Performs well in either production gangs with a machine/operator or with the handguns for emergencies and with section crews to handle smaller jobs. Composition and Material System 1 polyurethane is a two-component, 1:1 ratio. System 1 will not shrink after curing and provides dense wood like compound. Tack Free Time, 75°F: 5 hole application 10 minutes. Applicable Standards System 1 reference testing ( TD-96-010 ) and AAR/UI study and the TTCI-FAST-HAL STUDY. Weight: 22.5 lbs. RELATED ITEMS: System 1 Hand Cartridge Applicator, Item # 4123-222: CLICK HERE
