The right stain protects the wood and brings out its natural grain.
Which Stain or Sealer Does Your Outdoor Furniture Need?
Quick answer: Resin and metal furniture don't need stain or sealer. Wood furniture usually benefits from it — use water-based for softwoods like cedar and pine, oil-based for hardwoods like teak and shorea.
If you have outdoor furniture — or are thinking of getting some — you'll want it to last and look its best. For wood furniture, one or more coats of stain or sealer can accomplish both goals inexpensively and easily.
Do You Even Need to Stain or Seal It?
| Material | Needs Stain/Sealer? | Notes |
|---|---|---|
| Resin (HDPE / PVC) | No | Weather-resistant as-is |
| Metal (wrought iron, aluminum) | No | Occasional touch-up paint only |
| Softwoods (cedar, cypress, redwood, pine) | Yes | Water-based recommended |
| Hardwoods (teak, shorea) | Optional | Natural oils protect it; oil-based finish if you choose to |
Not sure what your furniture is made of? Our guides to resin, red cedar, and teak furniture show what each material looks like and how it holds up.
Water-Based vs. Oil-Based
Water-based stains and sealers are environmentally friendly, emit fewer fumes, and clean up easily with soap and water. They're mildew resistant and let the wood breathe, making them a good pick for softer woods like cypress, cedar, and redwood. The tradeoff: they tend to raise the wood grain, so you'll likely need light sanding between coats.
Oil-based stains and sealers are often easier to apply for beginners and tend to last longer than water-based products, sealing the wood for better protection from rain and moisture. They're more toxic, and you'll need mineral spirits for clean-up. One eco-friendlier alternative is the Natural Kote Elite 501 Satin Sealer, a soy-based option. Prefer color? The Natural Kote Wood Stain with Sealing Agent is a soy-based stain with a sealer built in.
As a general guideline: water-based stains for softwoods like cypress, cedar, and pine; oil-based stains for hardwoods like teak and shorea. Want the full breakdown? See Oil-Based vs. Water-Based Stains, and if you're weighing polyurethane, read why we don't recommend it outdoors first.
Some stains include a built-in sealer. If yours doesn't, apply a separate sealer once your last coat is dry — always check the label to make sure it's compatible with your stain.
What About Teak?
Teak's natural oils give it excellent durability and weather resistance without any finishing, so staining or sealing is optional. If you'd rather keep its golden-brown color, a dedicated product like the Three Birds Teak Protector is made for that. Curious how teak compares to shorea? See our Teak vs. Shorea comparison.
Ready to finish your furniture? Shop our full range of outdoor furniture care products, including stains, sealers, and oils for every wood type. Refinishing a picnic table? Follow our step-by-step picnic table guide.
Frequently Asked Questions
Do I need to seal or stain my resin patio furniture?
No. Resin furniture doesn't require stain or sealer, and metal furniture like wrought iron or aluminum may only need occasional touch-up paint.
What stain works best on cedar outdoor furniture?
Water-based stains and sealers work well on cedar — they let the wood breathe and won't trap moisture inside.
Does teak furniture need to be stained or sealed?
No. Teak's natural oils give it excellent durability and weather resistance without finishing. Some owners stain it anyway for looks, typically with an oil-based product.
