Protect, restore and extend the life of your project withMicro-Seal® HDClear Finish Silane / Siloxane Waterproof Coating. Made from the best water repellent chemicals in the construction market,Micro-Seal® HD is formulated by blending silanes and siloxanes that have long been trusted by architects, engineers and building owners around the globe. Micro-Seal® HD creates a hydrophobic barrier that is not affected by weathering, salt, dirt, freezing temperatures, UV light and wind-driven rain, among many other damaging elements.
100% Deep penetrating Silane Siloxane waterproof protection coating with up to a 20 yr warranty
Extensive ASTM tested for superior resistance to water, salt and wind driven rain
Stain resistant to oil, gas, dirt and grime for outstanding protection
Will not alter surface appearance – leaves no surface film, no sheen and will not yellow
Excellent Mold and mildew inhibitor – stops growth dead in its tracks
Save money with one coat application & quick 1 hour recoat window for a 2nd coat
Apply in cold weather down to 40°F (4.4°C) and newly poured concrete within 48 hours
Coverage Rates (Theoretical)
Sq Ft / Gallon
Concrete and Masonry Block
Adobe Block/Natural Stone
Poured Vertical Concrete
Poured Horizontal Concrete
How to Use
1) Prepare Surface
To apply, surface moisture content must be less than 25% as measured with an electronic moisture meter. Surfaces must be free of dirt, grime, efflorescence, lime run, construction debris, form oils and release agents, chalked materials, loose and peeling paint, mold, mildew, etc. All cracks should be pointed or caulked.
Do not apply if rain, snow, or temperatures below 40°F are expected within 48 hours. Do not apply if relative humidity is greater than 80%.
ApplyMicro-Seal ® HDwith low-pressure airless spray equipment. Use a spray tip size of .035 to .062. Hold spray head 8 to 12 inches from the surface. Multiple coats may be applied, whiting/yellowing will not occur.Micro-Seal ® HDdries in 1 hour and fully cures in 5 to 7 days.