By James and Morris Carey
The Associated Press

Although wall-to-wall carpet has yet to make its way into most garages, a raw concrete floor is quickly becoming a thing of the past. A finished floor improves the garage's appearance and preserves the integrity of the concrete.

Three paint types

Paint is an affordable and useful means of finishing a garage floor. There are three basic types of paint for concrete - latex, oil and epoxy.

Of the three, latex is by far the most widely used. It has excellent adhesion properties, allows water vapor to escape (prohibiting delamination), and is the most user-friendly to apply since it cleans up with water. Most latex concrete floor paints are designed to be applied directly to raw concrete. The first coat serves as a primer, the second offers a full, uniform finish.

Oil-base paints offer a harder, shinier finish. Unlike latex, oil-base porch paint should be applied over a coat of oil-base concrete or masonry filler-primer. Application is similar to latex, but mineral spirits are used for cleanup. Thin the primer slightly using mineral spirits. This will enhance the penetration and improve the bond. Once dry, the finish coat can be applied.

Epoxy or epoxy-polyurethane paints are the most durable and longest lasting. They are pricier and substantially more difficult to apply. Epoxy paints generally consist of two products that, when combined, create a chemical reaction that results in an above-average bond and an abrasion-resistant finish. Epoxy floor finishes are available in a host of solid colors or randomly seeded decorative variegated color chips, and can include an integral nonskid finish.

Unfortunately, no matter the quality of the paint, how good the surface preparation or how well the paint was applied, latex and oil paints will usually peel when subjected to hot automobile tires. And although epoxy paint forms a bond with concrete, a moist slab and hot tires can be an incompatible combination.

Newer solutions

Vinyl mats and epoxy and plastic floor tiles have made their way onto the scene and are receiving acclaim for their ability to provide all of the benefits of a painted floor with none of the drawbacks (except that they can be pricier and, depending upon your skill level, might require professional installation).

A vinyl floor mat is hard to beat when it comes to price and ease of installation. The mat does not require adhesive and is rolled out into the space.

Some mats are designed with an integral grooved surface that will easily shed water.

If you want to be the envy of your neighborhood and you have the budget, consider modular plastic interlocking floor tile or a quartz-based floor tile. Both can be installed by the do-it-yourselfer, although the modular plastic system is less complex.

The modular plastic flooring system consists of tiles that snap together to cover all or part of a garage floor. Though moisture can seep between the individual tiles, the system "floats" atop the concrete floor, and the underside of the tiles has a honeycomb construction so as not to inhibit the natural fall built into most garage floors.

You can be a real trendsetter by installing a new quartz-based garage floor tile. These systems claim to offer the same resistance to chemicals, impact and stains as roll-on or towel-on polymer floorings but are significantly less likely to experience blistering that results from hydrostatic pressure. As with other types of tile, quartz-based garage tiles are individually set in thin-set mortar and the joints are finished with trowel-applied grout. However, like the floor tile, the grout consists of a porous, quartz-based material that allows moisture to escape - and keeps a secure bond.

More information on garage floor finishes: www.theultimategarage.com; www.bltllc.com; www.racedeck.com; www.garage-tile.com.