Q. We have just had two original furnaces replaced & the concrete floor was unfinished underneath them (the new furnace is located in a different spot). Would appreciate knowing what product to use to repair/finish. The deepest hole is about 1". Thanks
A. You can use a product from Quikrete called Concrete Resurfacer. We use a similar product from CTS Cement called Cement All Rapid Set. This sets very fast and is best suited for experienced users. The Quikrete concrete resurfacer is a just add water product and is easy to mix and apply.