FasTrac CS309 WB is a water based, modified acrylic compound for sealing, curing and dustproofing freshly placed concrete. FasTrac CS309 WB effectively seals concrete substrates and provides added resistance to freeze thaw, chloride ion penetration and drying shrinkage. FasTrac CS309 WB s easily applied, VOC compliant and meets the requirements of ASTM C309, Type I, Class A/B and AASHTO M148, Type I, Class A/B.


