Hairline cracks are unavoidable in wood cabinets, top-of-the-line or not. They occur wherever there's a joint between pieces of wood with grain running in different directions: for example, the joints between stiles and rails on the doors or the face frames that surround openings. The pieces expand and contract at different rates with changes in humidity, since wood movement is much more pronounced across the grain than with it. A painted finish, no matter how good or how carefully applied, just can't keep up.
Every species and grade of solid wood behaves this way, although cracks are more noticeable on light-colored cabinets than on dark ones. We try to warn clients about this in advance, saying that some cracking in the finish is likely. Still, maple is about the best wood you could have chosen for painted cabinets because of its stability.
The cracks will probably be more noticeable in winter than in summer because heat dries everything out. Your cabinet builder will be able to tell you options on how to help prevent this from happening by running a humidifier during inclement weather
Dust is made up of small, airborne particles, which can build up and may scratch or dull the surface if not removed correctly. Simply wipe the surface with a cloth dampened with a cleaning polish or mild detergent.
Oil from fingerprints, cooking fumes, smoking residue and other contaminates accumulate on any finished surface. None of these contaminates will harm your finish but should be periodically removed to restore the finish to its original luster. Just wipe the surface with a cloth dampened with a polish that doesn't contain wax, or mild detergent solutions. Use of ammonia-based products and silicone oils may cause damage if used over a long period. Clean only as often as needed to keep surface contaminates from building up on your cabinetry.
This finish is durable, but spills should be cleaned properly. Also excessive exposure to direct sunlight, high temperatures, and high humidity can cause damage to the finish and the wood itself.