How To Remove Scratches From Glass With Wd-40

A popular home remedy for removing glass scratches is using WD-40 lubricant. Wd-40 can effectively fill in and smooth out light surface scratches on glass, often making them virtually invisible. But do you know how to use it?

With a simple spray-and-wipe application, WD-40 can make fine scratches on glass virtually disappear. However, wd-40 has its limitations and may not work on deeper scratches.

In this article, I have provided a complete guide on using wd-40 to remove light scratches from glass surfaces. I’ve covered how wd-40 works on glass, tips for application, limitations, and results you can expect. Read on to learn the simplest method for making your glass look brand new again with items you likely have at home.

How To Remove Scratches From Glass With Wd-40

How Does WD-40 Work on Glass Scratches?

WD-40 was first developed in 1953 as a rust-prevention solvent and degreaser, but people soon discovered its usefulness extended well beyond its original purpose. The lubricant and protectant properties of WD-40 make it effective at seeping into micro-abrasions on glass and filling in the gaps, smoothing over the scratches.

Here’s a closer look at how it works:

Fills in scratches: The liquid formulation can penetrate into the irregularities of light scratches, filling in the grooves and smoothing out the surface.
Temporarily lubricates: The lubricating ingredients provide a slippery coating that minimizes the visible diffraction of light caused by scratches.
Leaves behind protective film: As the carrier solvents in WD-40 evaporate, a thin oily film is left behind that helps maintain the smooth appearance.
Contains anti-corrosion additives: Helps prevent further abrasion or dulling of the glass surface over time.

While not a permanent solution, WD-40 can mask the look of surface damage on glass through its ability to ingress into the topmost layer of scratches and provide optical smoothing and protection.

Step-By-Step Guide on Using WD-40 for Glass Scratches

Removing light scratches from glass using WD-40 is a simple and straightforward process. Here is a step-by-step methodology to follow:

Supplies Needed

WD-40 spray or liquid
Microfiber cloth or very soft cotton cloth
Rubbing alcohol
Masking tape (optional)

Step 1: Clean and Dry the Glass Surface

Before applying WD-40, ensure the glass surface is clean and dry:

Wash with mild soap and water to remove any dirt or debris that could interfere with smoothing scratches.
Use rubbing alcohol on a cloth to eliminate any oils, smudges, or residue.
Allow to dry fully. WD-40 will not work correctly on damp glass.

Step 2: Mask Off the Area Around Scratches (Optional)

If you only want to treat specific scratch marks and not the entire piece of glass, mask off the area around the scratches with painter’s tape:

Apply strips of tape above, below, and on both sides of the scratches, leaving just the damaged area exposed.
Press the tape down firmly to prevent WD-40 from seeping underneath.

Step 3: Apply WD-40 to Scratches

Shake the WD-40 spray can vigorously before use. Holding the can 6-8 inches from the glass, spray a light, even coating directly onto the scratched area:

If using liquid WD-40, dip a cloth into the solution and gently rub it over the scratches.
Let the WD-40 penetrate for 2-3 minutes.

Step 4: Rub in With a Soft Cloth

Gently rub the WD-40 into the scratch marks using a clean microfiber cloth or very soft cotton:

Apply mild pressure and use a small circular polishing motion.
The goal is to allow the lubricant to fully penetrate the scratches, not abrasively scrub them.
Reapply WD-40 if needed to keep the area wet.

Step 5: Buff Off Residue

Once the WD-40 has been worked into the scratches for 2-3 minutes, buff off any excess:

Use a clean dry soft cloth and go over the area in broad strokes.
Remove any drips or residue from the surrounding glass.
Allow the treated surface to dry fully before checking the results.

Step 6: Remove Tape (If Used)

If you used painter’s tape to mask off an area, carefully peel it off once the WD-40 application is complete and dry.

And that’s it! With this simple WD-40 scratch removal method, you can make light surface scratches far less noticeable, often to the point of vanishing entirely.

Expected Results When Using WD-40 on Glass Scratches

WD-40 works best on very fine micro-scratches that only penetrate the uppermost layer of the glass surface. Here are the typical results you can expect:

Hairline/surface scratches: These will usually disappear entirely with WD-40 treatment. The lubricant fills in the micro-abrasions and makes them optically “melt” away.
Minor scratches: More noticeable but shallow marks are significantly reduced. The scratches become less distinct and obvious.
Moderate scratches: Moderately deep scratches appear lighter and less opaque after WD-40 application but may still be faintly visible on close inspection.
Severe scratches: Deep grooves, gouges, or etching are unlikely to show much improvement with WD-40. The damage extends beyond the reach of the lubricating effect.
Cloudy haze: WD-40 helps smooth out the micro-roughness that causes visually cloudy or hazy patches on glass. The glass will appear clearer.
Dulled appearance: The oils in WD-40 enhance the glossiness and optical clarity of scratched glass.

So in summary, WD-40 excels at concealing very minor scratches but has its limits on deeper marks or extensive damage. Set your expectations accordingly for best results.

Limitations and Considerations When Using WD-40 on Glass

While WD-40 is an easy scratch remover for minor glass blemishes, there are some limitations to be aware of:

Not suitable for deep scratches – WD-40 can’t fully eliminate scratches that penetrate deeper into the glass.
Results are temporary – The smoothing effect will gradually wear off over time, especially with further use/cleaning of the glass.
Not effective on all glass types – Does not work as well on tempered, laminated, or coated glass surfaces.
Leaves an oily residue – Must be thoroughly cleaned off to prevent streaking or haziness.
Does not strengthen the glass – Does not actually repair the scratches, just hides them optically.
Can damage coatings – Use caution on glass with anti-reflective or tinted coatings.
Flammable formula – Contains solvents so keep away from excessive heat/flames during application.
Does not restore foggy glass – Cannot fix etched/frosted glass damage.

For best success, reserve WD-40 scratch removal for new minor flaws on clear untreated glass surfaces. Other options may be required for more extensive damage.

Tips for Getting the Best Results from WD-40

Follow these tips to ensure WD-40 can work its magic as effectively as possible:

Only use on glass – avoid plastics, acrylics, or coated surfaces that WD-40 could damage.
Spot test a small inconspicuous area first to check for any adverse effects.
Shake the WD-40 can vigorously before application for optimal mixing.
Maintain a light touch when rubbing – harsh scrubbing can worsen scratches.
Reapply WD-40 frequently to keep the glass wet as you polish.
Remove all residue to prevent streaks or haziness on the glass after drying.
Consider applying a glass sealant afterward for added protection.
Avoid getting WD-40 on anti-glare-coated glass as it could disrupt the coating.
Manage expectations – severe damage is unlikely to disappear completely.

With some finesse and care, WD-40 can make scratched-up glass look brand new again by minimizing the appearance of light surface flaws.

Can WD-40 Remove Scratches from Other Surfaces?

While glass is the most common use, WD-40 can also reduce the appearance of fine scratches on other hard surfaces including:

Plastics – Helps minimize light scratches on acrylics, Plexiglas, polycarbonate, and ABS plastics. Avoid spraying directly on plastic to prevent damage from solvents.
Metals – Brass, aluminum, stainless steel, and non-clear coated metals can be polished and lubricated with WD-40 to conceal minor scratches.
Ceramics – WD-40 will hide hairline scratches on glazed ceramic tiles, plates, and other items. Do not use on porous unglazed ceramics.
Enamel surfaces – Suitable for concealing micro-scratches on enamel bathtubs, sinks, and porcelain.

For plastics/metals, it is best to apply WD-40 to a cloth first rather than spraying directly. Test carefully before use and clean residue promptly after application. While not as effective as on glass, WD-40 can provide quick cosmetic improvement for light scratches on other materials around the home.

Other Effective Methods for Fixing Glass Scratches

While convenient and readily available in most homes, WD-40 is not the only option for remedying glass scratches. Here are a few other effective methods to consider:

Glass Polishing Compounds

Cerium oxide or aluminum oxide polishes are specially formulated to buff out etching, haziness, and scratches from glass surfaces. It requires working the polish into the glass with a felt pad or polishing wheel using a rubbing compound technique. It typically provides longer-lasting results than WD-40.

DIY Home Remedies

Toothpaste, baking soda, vinegar, vegetable oil, and other household items can temporarily improve the appearance of glass scratches with mild abrasive/polishing properties. It is generally less effective than commercial glass polishes but handy for quick cosmetic improvement.

Glass Repair Kits

Glass repair kits contain polishing compounds, buffing pads, and tools for repairing scratched glass. It offers a more complete and higher-quality solution but requires greater time and effort. It is useful for addressing damage beyond what WD-40 can fix.

Professional Glass Refinishing

Glass shops have specialized equipment and expertise to remove scratches and restore optical clarity. It is the most thorough method but can be expensive depending on the extent of damage. It can be the best option for deep scratches or restoring heirlooms.

For anything beyond minor surface flaws, alternative scratch removal techniques will provide superior correction and longevity versus WD-40.

Final Thoughts

WD-40 offers a quick, inexpensive, and readily accessible solution for concealing light scratches on glass surfaces. While it cannot fully remove deeper damage, its lubricating and polishing properties make hairline blemishes virtually invisible. With proper cleaning and preparation of the glass and careful application of the WD-40, you can restore the optical clarity and glossy appearance of scratched glass. We hope this guide gives you the confidence to tackle those annoying glass scratches with products you likely already have at home. Let us know in the comments if you have any other questions about using WD-40 or have a handy scratch-removal trick of your own to share!