Concrete sealer

We have a stamped concrete driveway and two patios. The company that did the installation recommends that re-sealing be done at least on a bi-annual basis. The sealer is available at hardware stores and lumber yards. There are two kinds. One is glossy and the other has a matt finish.

The application is to power wash the area thoroughly and let dry and then apply the sealer with a paint roller (just like asphalt sealing). If needed, the original colors can be brought back by applying the colored powder and sealing over it. This process is best done by people that know what they are doing.

Nonny, I would go here for technical answers:

I'd be carefull not to over do it with the power washer. The stamped on color is only in the top surface of the concrete. It can stand up to reasonable power washing, but I would only use as much forces as necessary.

For sealer, there are two kinds. Water based and solvent based. I've used both and IMO there is no comparison. The solvent based ones last longer and look much better. Problem is, you can't buy them in many states, like most of the east coast due to EPA. If your lucky you can find them in your state or order them online from a company that doesn't know they can't be sold in certain states. I recommend Kure- n-Seal. If you don't re-seal it every 2-3 years, the color will wear off.