Teak is the material people ask us about most, and it is also the material people worry about most unnecessarily. Here is what actually matters when your furniture lives within sight of salt water.
Why teak works outdoors in the first place
Grade A teak — the mature heartwood, not the pale sapwood at the outside of the log — carries a high natural oil content and a tight grain. Those oils are why teak resists rot, insects and water absorption without a coating. It is the same reason teak has been used on boat decks for centuries: it survives conditions that destroy other hardwoods, and it does it without a film finish that can crack, lift and require stripping.
That last point is the important one. A powder coat, a varnish or a paint film is a barrier, and barriers eventually fail. Teak has no barrier to fail. Left alone, it simply weathers.
The silver patina is not damage
New teak is a pale, warm honey-gold. Within roughly six to twelve months outdoors, UV light breaks down the surface layer of oil and the wood shifts to a soft silver-grey. In coastal air this happens faster and more evenly than it does inland.
This is a surface change, perhaps a fraction of a millimetre deep. It does not affect strength, joinery or lifespan. A great deal of the teak furniture on the terraces we most admire is silvered, and it looks better for it.
So the first decision is aesthetic, not technical: do you want honey or silver? Everything below follows from that answer.
If you want to keep the honey tone
Clean the furniture twice a year — spring and autumn is a sensible rhythm — with warm water, a soft brush and a mild soap. Work along the grain, never across it. Rinse thoroughly.
For a fuller reset, a proper teak cleaner will lift greying and return the wood to something close to its original colour. Follow it with a teak sealer if you want to slow the next round of greying. Note the word sealer, not oil.
Why we do not recommend teak oil
Teak already contains its own oil; it does not need more. Applied teak oil sits on the surface, darkens unevenly, and — this is the real problem — becomes food for mildew. In a humid coastal climate, oiled teak is far more likely to develop black spotting than untreated teak. If you want colour retention, use a sealer designed for teak. If you are happy with silver, use nothing at all.
Salt, mildew and the things that actually cause trouble
- Salt spray is not a threat to the teak itself, but salt crystals are abrasive and they attract moisture. A freshwater rinse every few weeks in an exposed beachfront location is the single most useful thing you can do.
- Mildew grows on what lands on the wood — pollen, sunscreen, food residue, tree drip — not on the teak. Wash it off and it has nothing to live on.
- Standing water matters more than rain. Slatted tops and open frames exist so water passes through. If you cover furniture, use a breathable cover; a sealed plastic cover traps humidity and creates exactly the conditions mildew wants.
- Pressure washers will erode the soft grain between the growth rings and permanently roughen the surface. If you must use one, keep it under 1,500 psi with a wide fan and stay well back.
What about the hardware?
This is where a lot of outdoor furniture quietly fails. Standard stainless steel will pit and streak rust in salt air. We build with 316 stainless — the marine grade, with molybdenum added specifically for chloride resistance — precisely because a beautiful teak frame held together with the wrong bolts is a five-year piece of furniture, not a twenty-year one.
If you inherit furniture with unknown hardware, check the fasteners after the first winter. Rust streaking down a teak leg tells you everything.
Storage, or the case for not storing
Teak does not need to be brought inside for winter. Freeze-thaw cycles do not harm it, and a season outdoors continues the same weathering that is already happening. Bring the cushions in, or store them somewhere dry and ventilated. Bring the furniture in only if you need the space.
The short version
Wash it twice a year. Rinse the salt off if you are on the water. Skip the oil. Use 316 stainless hardware. Then leave it alone and let it get better.
Prado Outdoor builds in Grade A teak, powder-coated aluminum, 316 stainless and Sunbrella, direct from our own factories. Questions on a specific piece? Talk to us.
