Flexiteek 3G is one of the most durable and low-maintenance synthetic decking materials available for boats. However, like any surface exposed to demanding marine conditions, it benefits from regular care to keep it looking as good as new.
In this guide, we share our top expert tips to help you keep your Flexiteek deck clean, safe, and long-lasting.
Clean regularly with water and neutral soap
Although Flexiteek is highly resistant to salt, sun, and stains, it should still be cleaned periodically using:
- Fresh water
- pH-neutral soap
- A soft brush or cloth
Always clean along the grain of the material to avoid surface damage and to preserve its natural teak-like appearance.
Remove stains promptly
Spills such as fuel, oils, red wine, or sunscreen should be cleaned immediately to prevent absorption.
Recommended products include:
- Methylated spirits or biodegradable wipes
- Flexiteek Wash & Care (specifically formulated for Flexiteek)
For best results, use a flexiteek wash and care product, applying it directly to the stain and gently rubbing in the direction of the grain.
Avoid harsh or abrasive products
Some cleaning products may appear effective but can damage your deck and even void the warranty.
Do NOT use:
- Acidic or alkaline cleaners
- Wood polish or teak oils
- Aggressive brands such as Starbrite, Simple Green, or Armour All
- Pressure washers above 135 bar (unless used correctly)
Always check product labels, and when in doubt, ask your Flexiteek distributor.
Pressure washing – with care
A pressure washer can be used, but follow these guidelines:
- Keep a distance of at least 20 cm
- Do not exceed 135 bar
- Move the nozzle along the grain
- Avoid spraying directly on to soft caulking
This method is ideal for deep cleaning large areas or removing surface build-up.
Light sanding for stubborn marks
For deep stains or scuff marks that won’t come off:
- Use 60-grit sandpaper
- Sand manually — never use a power sander
- Always work along the grain, not across it
- For large areas, consult a professional installer
Sanding should only be used as a last resort and always with great care.
Mistakes to Avoid
To protect the lifespan of your deck, avoid:
- Using metal brushes or steel wool
- Walking with black-soled shoes or high heels
- Placing hot items (barbecues, cookware) directly on the deck
- Dragging heavy equipment or coolers across the surface
A little prevention goes a long way in keeping your deck looking flawless.
Conclusion
Maintaining a Flexiteek deck is refreshingly simple, no oiling, no endless sanding, no aggressive chemicals. By following these expert tips, you’ll protect its beauty, performance, and value for many years to come.
Need professional help?
At Yacht Tek España, we provide specialist cleaning, repairs, and complete refurbishments for Flexiteek decks across Spain and the Balearic Islands.
If you have any further questions, take a look at our Maintenance section for more detailed guidance or simply get in touch with us and we’ll be happy to advise you.