Description
Product Description
Why use W9 Water Spot Remover
W9 Water Spot Remover is a concentrated formula which is 100% coating safe.
Unlike standard single mechanism water spot removers, W9 has a three mechanism approach to removal. It dissolves and removes salts. Traps metal ions, which are commonly found in tap water. And finally, removes silica scale which are traditionally very tough to eliminate.
Hard water spots and silica scale will disappear from the exterior surface with ease. The formula works well on glass, where traditionally watermarks are exceptionally hard to remove.
Use W9 on all paint types, including matte finishes.
Application Information
Simple steps to help you get the best results
- Use after washing and drying your car
- Do not apply in direct sunlight
- Shake well and wear gloves
- Spray liberally onto a clean Gtechniq MF1 ZeroR Microfibre Buff Cloth, wipe onto an area no bigger than 2ft x 2ft (60cm x 60cm)
- Buff immediately with a clean MF1 cloth
- Repeat as necessary
- Re-wash your car after use
- Store in a cool, dry place
Need Help?
Frequently Asked Questions
How do you remove water spots from paint and glass?
Water spots are typically caused by mineral deposits left behind after evaporation or water or rain. W9 Water Spot Remover breaks down these deposits on contact. Simply apply it to a microfibre and wipe over the affected area, then wipe off with a microfibre cloth for a clear, streak-free finish.
How to get rid of hard water spots on car paint?
Hard water spots can etch into clearcoat if left untreated. W9 is specially formulated to dissolve mineral build-up safely without damaging paint. Apply it directly to the affected area via a microfibre and gently wipe the area to remove the deposits.
Can W9 be used on glass and trim?
Yes—W9 is safe and effective on automotive glass, trim, and painted surfaces. It’s ideal for restoring clarity to windscreens and windows while maintaining the integrity of surrounding materials.
How to clean water marks on your car after washing?
Water marks left after washing are common and caused by drying in direct sunlight. W9 quickly removes these marks without the need to rewash your car. For best results, use it as a targeted spot treatment during your detailing routine.
What causes water spots on cars and windows?
Water spots form when hard water evaporates, leaving minerals like calcium and magnesium behind. Rainwater, sprinkler systems, and even hose water can all cause spots—especially on unprotected surfaces.
Is W9 safe for ceramic-coated or waxed vehicles?
Yes—W9 is compatible with ceramic coatings and waxes. It’s designed to remove bonded mineral deposits without stripping protection layers, making it perfect for maintaining coated vehicles. It does not diminish or remove ceramic coatings.
Can W9 remove old or stubborn water spots?
Absolutely. For more etched or stubborn water marks, a second application may be necessary. Light agitation with a soft microfibre can also help break the bond between the deposit and the surface.
How to prevent future water spots after removal?
To prevent water spotting, dry your vehicle thoroughly after washing, avoid washing in direct sunlight, and apply a high-quality sealant or ceramic coating such as Gtechniq EXO or C2 Ceramic Sealant.
Very effective at removeing water spots.