... , parking lot, factory,etc 3, Polymer modified, cement base WPS Waterproof Mortar - CCCW for Inside and Outside Concrete Surface OVERVIEW1 ... hydrated crystal to block out water.4, So Gomix WPS Waterproof Mortar can make concrete resistant to the water forever ... setting time≥20 MinFinal setting time≥24 HExecutive standardGB1445-2001 WPS Waterproof Mortar- CCCW for Inside and Outside Concrete Surface, ...