Should I Thin My Concrete Sealer? | Concrete Decor
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Should I Thin My Concrete Sealer?

To thin or not to thin
Is thinning a sealer recommended? The obvious answer is “no.” Anytime you alter a sealer’s formulation you risk affecting its performance — not to mention voiding any stated warranty.

Is it done? Of course it is. Some contractors thin a sealer to facilitate better penetration of the first coat, and then apply following coats at full strength or apply additional coats to achieve the build-up needed.

In some situations — for example, when troubleshooting special circumstances — you may want to alter the product. But in these special situations, the alteration should be done on a case-by-case basis with the advice and recommendation of the product manufacturer.

There is an added concern regarding solvent-based products governed by VOC regulations. By thinning solvent-based products you might push the VOC above the legal limits, which would be illegal.

Manufacturers typically offer a variety of solid levels to avoid the need to dilute products.

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