Concrete Floor Joint Sealer

Using concrete joint sealant to seal concrete expansion joints and concrete contraction joints in concrete floors and concrete walls is an important part of maintaining the integrity of the concrete. The temperature also needs to stay above 50 f during application and drying time up to three days. In other words when the concrete does shrink and crack the control joint is placed so that the slab will crack on a line instead of randomly across the slab.

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Sealer needs to be applied in dry conditions because it won t adhere to damp concrete.

Concrete floor joint sealer.

Shop menards for concrete sealers available from the best brands to protect your concrete from the elements. If there is any condensation underneath it the floor is likely too damp to seal. Before applying check the weather. We show step by step all application details that matter to get in the end the perfect joint.

To do this apply a clear piece of plastic to the floor. Use a dehumidifier to remove moisture from the air. A slab will continue to shrink and widen the control joint for years although most of the shrinkage takes place within the first year and especially within the first 90 days. It is formulated to seal protect and beautify concrete and masonry surfaces with a high gloss finish.

Its one component technology offers ease of use and cost effectiveness. The pourthane joint sealant line is designed for sealing concrete and metal joints in a variety of applications including sidewalks balconies pavement terraces warehouses factories civil structures plazas and pitch pans. Installing the proper kind of concrete joint sealant will help protect the structure from moisture damage caused by rain wind gravity capillary force and surface tension. It is also an excellent topcoat for paints and stains.

The table below will give you an idea of the amount of concrete joint sealer you would need for a project. We re focusing on wall joints in this article however the same principle can be used for construction and expansions joints in concrete floors. Although the best theoretical shape of the sealant plug would be 1 2 depth to width ratio aci 504r 90 guide to sealing joints in concrete structures recommends that a better ratio is 3 2 since this allows the sealant to adhere better to. To seal concrete floors that have been exposed to moisture begin by inspecting the floor to determine how damp it is.

After 24 hours check the plastic. What must be taken into account when sealing floor joints. If your concrete is new you ll need to let it cure wait at least one month before applying sealer. Click to add item rust oleum gloss clear concrete garage floor topcoat 1 gal to the compare list.

Behr premium wet look sealer is a clear non yellowing behr premium wet look sealer is a clear non yellowing high solids acrylic based masonry sealer. A backer rod in the joint also keeps the sealer plug thinner reducing the amount of sealant needed. Click to add item h c clear water based masonry paver sealer joint stabilizer to the compare list.

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