Short answer: Start by identifying the finish. A piece with a lacquer or polyurethane finish needs cleaning and polishing, not oil. A dull, dry oiled or waxed piece can be cleaned and then re-oiled or waxed. Only refinish if the finish has failed, and sand carefully, because mango’s interlocked grain can tear out.
What mango wood is
Mango (Mangifera indica) is a tropical hardwood. Most of it comes from plantation trees in India and Southeast Asia, grown for fruit that no longer bears well. It has a medium density and a Janka hardness roughly between 1,000 and 1,100 lbf, depending on the source.
The color ranges from pale tan to golden brown. Some boards show spalting, which are dark fungal streaks. Mango is a hardwood, not a softwood, but it is not naturally resistant to rot or insects the way teak is. Most furniture is kiln-dried and treated.
Check the finish first
Mango furniture usually has one of these finishes:
- Factory lacquer or polyurethane. The surface is sealed, so oil won’t soak in. Clean and polish instead.
- Oil or wax. The surface feels close to bare wood to the touch, and it can look dull or dry. These pieces can be re-oiled or re-waxed.
- Distressed or painted. These finishes are often decorative and can be hard to match. Refreshing them usually means touch-up or repainting, not sanding. Which paint to use on wood furniture covers the options.
To check, put a drop of water on the surface. If it beads, the finish is sealed. If it soaks in quickly, the surface is bare wood or a worn oil finish.
Routine cleaning
Clean mango furniture with a soft, damp cloth. Add a little mild soap if you need it, then dry it right away. Avoid soaking the wood, because water can swell it and lift veneer. Keep cleaning products away from the surface, and don’t use harsh solvents on a finish you can’t identify.
Oil or wax a dull or dry piece
For an oiled or waxed piece that looks dry:
- Clean the surface first, so you aren’t sealing in dirt.
- Apply a furniture-grade oil, such as a Danish, teak or tung oil, or a paste wax.
- Wipe off the excess after the product’s recommended time.
Oil does nothing for a lacquered surface, because the film blocks it. Don’t keep adding oil to a finished piece, or it will build up and look sticky.
Water marks and light scratches
White water marks in a finish are often moisture trapped in the surface. Gentle heat, such as a hair dryer on low, or a very fine abrasive can help, as they would on other finished wood. Test on a hidden spot first. For deeper marks, see how to repair damaged wood finish.
Refinishing with care
Refinishing is sometimes the right choice, but mango needs careful sanding. Its interlocked grain can tear out if you sand against it, so work with the grain and keep the sander moving.
Work up through the grits: 120, then 150, then 180. Don’t skip grits. Mango takes stain fairly evenly, but test a hidden area first to check the color.
Many mango pieces have veneer or thin solid tops, so check before any heavy sanding. How to tell solid wood from veneer furniture explains how to check. If you’re unsure whether your piece can take sanding, it’s safer to clean and re-oil than to refinish.
Keeping it stable: sun, heat and humidity
Keep mango furniture out of direct sun and away from heaters. Large swings in humidity can make mango crack or move, so keep the room at a fairly steady humidity. These precautions help a piece last longer, whatever finish it has.
Dust safety and outdoor use
Mango is in the cashew and poison-ivy family, and its dust can irritate the skin and airways of some people. Wear gloves and a mask when you sand or cut it.
Mango is not naturally durable outdoors. If you want it outside, use an exterior finish and plan for regular upkeep.