USIC-818 Concrete Crack Filler (2 gallon kit.) Part A and B mix. Fills 1,244 lineal feet at 1/8" x 1/8". Can be Epoxy coated 20 mins. after application or can be sanded smooth after 8 hrs. This epoxy product can also be used for concrete floor repair. Concrete chips, pitted areas and spalling concrete spots.