Dura-Seal Information
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Dura-Seal and it's benefits for the Paint Trade Concrete is a man-made product consisting of cement, sand, gravel and water. The cement element of concrete contains lime. As these components cure, water is expelled leaving pores in the concrete. The se pores allow for water and many other pollutants to not only penetrate into the concrete form the top, but also creates a capillary action allowing water and minerals to wick up from the ground behind the pool. As the water passes through the concrete from the soil, it picks up free lime and alkali in the concrete. The alkali reacts with any surface coatings such as polyurethane, epoxy, adhesives, etc... and causes a reaction known as "saponification" (forms a thin layer of soap). When the alkaline water comes in contact with surface coating, it begins deteriorating causing alkali bubbles and blisters. The coating cracks and peels requiring replacement of the coating. Therefore, it has been determined that there needs to be a "sealant" under the coating and that is where Dura-Seal comes into picture. |
Dura-Seal To The Rescue
Dura-Seal is a high performance concrete/plaster sealer designed to elimination ground water penetration. It is designed for use prior to the application of Dura-Bond epoxy coating. Dura-Seal penetrates the concrete and reacts with the alkali forming small crystals in the tiny void spaces creating a productive outcome rather than a destructive one. It turns into a gel and spreads throughout (not only on top of) the concrete filling the pores and hairline cracks, thus preventing the wicking of water through the concrete and to the surface. By filling the voids, it also increases the density of the concrete. This gel becomes hard like the surrounding concrete.
Benefits of Dura-Seal
Penetrates into the concrete leaving
no surface film
When properly applied, will not interfere with he applications of Durban
Stops alkali problems and retards capillary seepage
May be applied to wet or dry, now or old, rough or smooth surfaces
Creates a waterproof but breathable concrete surface
Water based - easy clean-up.
Physical Properties of Dura-Seal
Base: Water
Physical State: Liquid
Color: Colorless
Odor: Odorless
FlashPoint: None
Application
Dura-Seal is applied as a single coat treatment. Always test a small inconspicuous area prior to application to ensure product effectiveness, make sure surface is absorbing the product, do no over apply.
Surface Preparation
Surfaces should be clean and free of loose debris, dirt, mildew, oils and grease. Dura-Seal is a water based product meaning any grease, oil or petroleum residue including those from certain concrete cleaners will prevent optimum penetration. Use of an effective non-petrolium based or non-citrus-based concrete cleaner such as AJAX powder in conjunction with a thorough pressure wash is recommended for best results.
Coverage
Coverage is approximately 400-600 sq. ft. per gallon depending on the porosity of the surface.
Existing concrete
Using a pump-type garden spryer with fan tip coat entire surface. Keep applying light spray coats until material no longer absorbs into the concrete. Do not allow the material to puddle. Broom out to an even coat. If material starts to gel on the surface, spray with clean water an d broom out. After 45-60 minutes, flush the entire surface thoroughly with water, or squeegee off the excess. If a white film starts to form, flush immediately since all the absorption and initial reaction is complete.
Fresh Concrete
Allow concrete to cure at least 24 hours before applying. Apply on existing concrete, but do not allow to puddle. After 30-45 minutes, the material will begin to get at which point the surface should be re-wet with clean water and broomed evenly. Continue to flush if gel forms again or if film starts to form. It is important not to puddle water on the concrete.
Special Limitations
Keep from freezing. Not for use below
40 degrees Fahrenheit.
Do not dilute except as directed.
Not recommended for tile, slate, etc...
No not apply to metal or glass surfaces.