* Coverage: sq ft/gal
Smooth precast concrete 125 - 175
Cast-in-place 100 - 150
Precast concrete 125 - 150
Exposed aggregate 100 - 150
** Split face block (CMU) 50 - 75
Fluted block 50 - 75
Brick (Clay) 100 - 150
Stucco 100 - 150
Sandstone 75 - 125
Steel trowelled concrete 150 - 200
* Coverage will vary depending on the porosity and texture of the substrate.
** Lightweight split faced block may require a film-forming product due to its extreme porosity
Drying time, @ 72°F, 50% RH:
Touch: 1 hour
Recoat: 24 hours
Light foot traffic: 2 hours
Heavy traffic: 72 hours
Description
HYDRO-DEFEND® HB-150 Water Repellent are clear oligomeric siloxane water repellents designed to weatherproof old and new masonry against nature’s destructive forces. They provide a long lasting, breathable barrier which exhibits superior resistance to water, airborne dust and dirt, salt, acid rain, efflorescence, alkali, freeze/thaw damage and spalling. They also minimize iron staining by helping to prevent reinforcing steel from corroding and deteriorating due to water intrusion.
Stiff broom
Garden hose with a pressure washer nozzle
Bucket
Eye Protection
Respiratory Protection
Gloves