Refinishing teak outdoor furniture can restore it to its original beauty and extend its lifespan. With the right techniques and products, you can make your weathered teak patio set look brand new again. Here is a step-by-step guide to refinishing teak furniture for outdoor use.
Assessing the Furniture and Planning the Refinishing
Before beginning any refinishing project, take some time to assess the current condition of the teak and determine the scope of the restoration.
- Examine the furniture closely looking for cracks, deep scratches, and areas of rot or insect damage. Make notes on any repairs needed before refinishing can begin.
- Consider the current color and determine if you want to keep the gray weathered look or return the teak to its golden brown color.
- Take into account the size of the furniture pieces and the scale of the project to ensure you have sufficient supplies and workspace.
- Check the weather forecast and plan to refinish when several days of sunny, dry weather are expected so the teak can dry thoroughly after each stage.
Cleaning the Teak
Thorough cleaning is the first step in the refinishing process. This will remove dirt, grime, mold, and mildew that has accumulated on the surface.
Supplies Needed
- Teak cleaner or teak brightener
- Scrub brushes with stiff and soft bristles
- Garden hose with pressure nozzle
- Bucket
- Rags
- Safety equipment – gloves, goggles, mask
Cleaning Steps
- Wet the teak with a garden hose to prevent the wood from absorbing the chemicals.
- Apply a teak cleaner or brightener as directed over the entire surface and allow it to sit for 5-10 minutes. This will help break down built-up grime.
- Scrub thoroughly using scrub brushes. Apply pressure with stiff bristle brushes on stable surfaces. Use softer brushes on intricate carvings.
- Rinse thoroughly with clean water to remove all residue. A pressure washer can help blast away stubborn dirt.
- Allow the furniture to dry completely. This may take 24-48 hours.
- Repeat cleaning if needed for heavily soiled furniture. Let dry completely before moving to the next steps.
Sanding the Teak
Sanding will smooth the surface and remove the grayed upper layer of wood if you wish to restore the golden teak color.
Supplies
- Orbital sander or sanding block
- 80 grit sandpaper
- 120 grit sandpaper
- 220 grit sandpaper
- Tack cloth
- Dust mask & goggles
Sanding Steps
- Start sanding using 80 grit paper to aggressively smooth and level the surface. Work in the direction of the wood grain.
- Vacuum sawdust between sanding with each grit. Wipe with a tack cloth to remove dust.
- Move to 120 grit paper to further smooth and remove scratches.
- Finish sanding with 220 grit paper to achieve a smooth finish ready for refinishing.
- Wipe again with a tack cloth and let dry completely before applying finish.
Applying Teak Sealer
A teak sealer is recommended before finishing to protect the fresh wood and help the new finish adhere.
Supplies
- High-quality teak sealer
- Paintbrush, roller, or sprayer
- Rags
- Gloves & goggles
Steps for Applying Sealer
- Prepare the teak sealer according to manufacturer’s directions.
- Apply an even coat across the entire surface using a brush, roller, or sprayer. Get good coverage on all edges and crevices.
- Allow sealer to dry per product instructions. Often 24 hours between coats.
- Apply a second coat of sealer for best protection.
- Allow sealer to cure fully before applying finish coat. This may take 2-3 days.
Finishing the Teak Furniture
The final step is choosing an appropriate finish that will protect the teak and achieve the desired look.
Finish Options
Teak Oil – Penetrates wood grain to accentuate golden tones with a low gloss sheen. Requires frequent reapplication.
Spar Varnish – Forms a glossy protective film ideal for outdoor use. Can yellow over time.
Teak Stain – Adds color while allowing some of the wood grain to show. Must be applied over sealer.
Marine Varnish – Offers maximum UV protection. Slow drying so requires many thin coats.
Teak Finish Oils – Contain UV inhibitors. Enhance color and form a satin sheen.
Steps for Applying Finish
- Prepare finish according to manufacturer instructions.
- Use a high-quality natural bristle brush or foam applicator. Work finish into the wood grain.
- Maintain a wet edge as you work across furniture pieces to prevent lap marks.
- Allow to dry fully and cure before adding additional coats.
- Sand lightly with 220 grit paper between coats for a smooth final finish.
- Apply 3-5 coats for optimal protection, allowing full drying time between coats.
- Allow finish to cure for several days before placing furniture outside.
Maintaining Refinished Teak Furniture
- Keep teak free of dirt and debris which can lead to surface mold and mildew.
- Wash periodically with teak cleaner & soft brush. Avoid abrasive cleaners.
- Consider an annual light sanding and reapplication of teak sealer and finish.
- Protect cushions and cover furniture when not in use.
- Reapply finish coats as needed when you notice wearing around edges or high use areas.
With proper prep, products, and techniques, you can refinish your teak outdoor furniture to look its absolute best for years of stylish and comfortable outdoor living. Let the steps above guide you through the process from start to finish.
Frequently Asked Questions About Refinishing Teak Outdoor Furniture
How long does it take to refinish an outdoor teak dining set?
Refinishing a full dining set with 6 chairs could take 1 full week if working alone. Plan at least 1 day for cleaning, 1-2 days for sanding, 1 day for sealing, and 3 or more days for applying finishes coats with drying time between coats.
What is the cost to have teak furniture professionally refinished?
Professional refinishing services often charge $400-$1000 to completely restore a 6-8 piece dining set depending on current condition. The investment may be worth it for a valuable set inherited or bought secondhand.
Can teak furniture be restored after being left outdoors for years?
Yes, with diligence nearly any teak furniture can be restored with thorough cleaning, sanding, sealing and refinishing. Severely neglected furniture may require partial replacement of rotten boards first.
What grit sandpaper is best for preparing teak wood?
Start with 80 grit paper to level and smooth the surface. Move to 120 grit before finishing sanding with 220 grit to prep teak for finishing. Always sand in direction of wood grain.
How do you get the grey patina off teak furniture?
Sanding with 80 grit paper will remove the top grey layer and reveal fresh golden teak underneath. Clean thoroughly after sanding to remove grey wood dust before refinishing.
What is the best protectant for finished teak furniture?
A marine grade spar varnish or high-quality teak finish oil will protect the wood and finish while allowing the beauty of the teak to show. Reapply yearly or as needed.
Can teak sealer be used on unfinished wood?
Yes, teak sealer provides added protection on bare wood before finishing. Often 2 coats are applied with light sanding after each coat to ensure proper adhesion of the final finish.
How often should teak furniture be refinished?
Refinishing may need to be done as often as every 2-3 years for furniture left continuously outdoors. Some finishes may last up to 5 years with proper maintenance before refinishing is needed.
What mistakes should be avoided when refinishing teak?
Avoid skipping surface prep steps like cleaning and sanding properly. Rushing the drying time between coats can ruin the finish. And failing to apply enough finish coats will lead to early wear and deterioration.