permanentconcretesealer

New Concrete will do most of it's curing in the first few weeks, as the capillary
network and bleed holes show their developnent. The strength of concrete slowly
continues to increase over the next few years, as a microscopic crystalline network develops. For this reason, we recommend that the application of the sealer to new concrete be repeated a year or two later in cases where absoutely no porosity in concrete may be tolereated. As concrete cures it will develop new porosity, regardless of how well sealed it was initally. knowing this, the contractor can properly inform his customers and avoid call-back and or future headaches.

Old concrete is chemically stable and its porosity fully developed. The typical age
at which chemical stability is attained and chemically-bonded coating will stick depends on average annual temperature. All chemical reactions go faster in warmer weather. Because our 100% Acrylic-free formulation, based on the mineral chemistry of concrete itself, it will even stop salt water deterioration of concrete pilings if the sealing is done properly and the concrete is steamed cured before installation. Dusting and efflorescence of old concrete surfaces can be stopped entirely. However old or extremely porous may take more than two or three applications until no further penetration observed. Extremely porous, crumbly concrete shoud have an epoxy sealer treatment instead. Most coatings can be made to stick to concrete with proper suface preparation, then they stay stuck.

Old concrete which may have absorbed food spills, grease or oil, antifreeze, brake
fluid or hydraulic fluid will not stick if not chemically cleaned. Abrasive blasting does not remove soaked in comtanimation, and such oily residue will dissolve in and come to the surface when the first topcoat is applied. This is why precleaning is necessary.

The powerful detergent combinations in Smith's Permanent Concrete Sealer
flushes oils or dirts from concrete porosity. This chemical surface treatment
will also seal the microscopic porosity of the concrete. It also chemically activates
the concrete and silica sand grains in the surface so that a good chemical bond
may be obtained with sebsequent coatings

To use, mix two gallons of concentrate with three gallons of water. Apply Smith's
Permenant Concrete Sealer at a coverage of about 50-200 square feet per gallon, depending on concrete porosity. Apply as much as immedately soaks in. The average concrete slab takes about 100 square feet per gallon. One should apply as much as will soak into the concrete. It is then covered with a platic sheet to prevent water evaporation. Do NOT let any of the sealer dry hard on the concrete surface; it will be difficult to remove and will interfere with adhesion of subsequent coatings. The seal developes by a chemical reaction with the concrete and this is at a fairly slow rate. Keep covered for five hours. The Plastic sheet is removed and the concrete is rinsed with tap water while being scrubed with a stiff bristle brush or push broom.