The USG line of four Ultraflow Brand Floor Underlayments offers high compressive strengths and versatility.
- Ultraflow G-1.0 is designed for use in residential and light commercial applications, with a compressive strength of 3,500 to 4,200 psi at 10 to 14 days
- Ultraflow 2.0 is designed for fast application and setting and is ready to handle light construction traffic 24 hours after being poured
- Ultraflow 3.0 is designed for leveling or topping rough and spalled concrete and will accept floor coverings after 24 hours
- Ultraflow 4.0 is a designed to act as a final floor surface or high-performance underlayment, allowing the return of light traffic within 24 hours
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