use a concrete Broom and lightly drag the broom in the same direction each time
Before AC the art of concrete 30% Penetrating Sealer dries
Length change – ASTM C157 (modified per ASTM C928)
Abrasion Resistance 28 days %loss – 500 cycles – less than 0
the surface area targeted are more concentrated and in a higher speed
Deck-O-Foam Expansion Joint Size:6" x 50' use a concrete Broom andDECK O FOAM expansion joint filler is a flexible, lightweight, non staining, polyethylene, closed cell expansion joint filler. It is a chemical resistant, ultraviolet stable, non absorbent, low density, cost effective, compressible foam that offers an extended service life in both interior and exterior applications. This comes in 50' Rolls DATA SHEET DOWNLOADS Deck O Foam TDS Deck O Foam SDS