Removing Curling Iron Burn Mark from White Cultured Marble Vanity Top

burn mark on cultured marble countertop from curling iron


I have a 72" all in one piece white cultured marble vanity top.

I left a hot curling iron on the countertop that burned a small area near the sink. It is a red and light brown burn.

Any way to repair a curling iron burn mark on cultured marble?

If I use light sandpaper or steel wool to remove the stain, what do I use to bring back the low shine?

Thank you for any input. Donna Lexington, KY


First understand that any type of sandpaper, abrasive pad, or cleaner will scratch and damage the protective gel coat of a cultured marble countertop.

So, you do not want to use anything abrasive for cleaning cultured marble.

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But for repairing cultured marble, it's a different story. The curling iron has already burned the surface, so yes...

Light sanding may work to remove the red/brown burned material.

It depends on the depth of the damage. If the protective gel-coat is burned all the way through, then you probably cannot repair the vanity top.

The best advice is to hire a cultured marble professional to attempt a repair with a severe or deep burn.

Cultured marble repair is difficult and tricky. There are DIY solutions that can work, but they can require multiple steps, time, and effort.

And some of the gel-coat must remain intact for a successful DIY repair.

So, if you truly want to fix it a pro will have the knowledge and experience to achieve decent results.

But, often replacement is more cost-effective
than repair.

How To Remove Burn Mark on Cultured Marble

If you want to repair it yourself, then sanding should help. But first...

1. Scrub with a diluted bleach solution (8 parts water to 1 part bleach) and a soft-bristle brush and see if that works to remove the cultured marble burn and discoloration.

FYI... don't use straight bleach on cultured marble. It will damage the surface. Also, don't let the diluted solution sit too long and rinse thoroughly after use.

2. Then sand lightly using a fine 800-grit or 1000-grit wet/dry sandpaper. Start with the fine-grit sandpaper and see how it goes.

But it may not remove enough. If not try a more coarse 400 or 600-grit sandpaper.

3. Then apply a rubbing-polishing compound made for cars. Do this by hand or with a buffing pad on a drill or using a buffer at low speed.

The rubbing compound is slightly abrasive and will remove and blend light scratches from sanding to smooth the surface and prepare for final polishing.

Once all the discolored material is removed and you've smoothed the area, rinse and clean the area.

4. Next apply this Gel-Gloss Polish (made for cultured marble) to the whole surface.

Buff it to a shine with a buffing pad by hand, or attached to a handheld drill, angle grinder, or power buffer.

Periodically applying this Gel-Gloss product will help condition and maintain the original gel coat and keep the surface shiny.

You'll likely always have a slightly noticeable area of damage, but the above should help you remove the burn mark and improve the appearance.

Comments for Removing Curling Iron Burn Mark from White Cultured Marble Vanity Top

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Repairing burn marks in cultured marble vanity tops
by: M Jones

I have been doing porcelain repair for over 20 years. We repair tubs, vanity tops, granite and many other items.

The easiest way to remove a burn in a cultured marble vanity top is to use 400 grit wet dry sand paper on a sanding block in circular motions until the stain is gone.

Please note if the burn is real dark and sanding does not seem to be removing it after a few moments of sanding, then the burn may have gone through the gel coat and be into the core.

Be careful not to sand too far down. The core is very porous and will not polish. After you have removed the stain with the 400 grit, use 600 grit to remove any sand marks.

When done sanding use dupount 606s buffing compound on a damp rag polish in a circular motion until the area comes back to a high gloss finish.

Never ever use bleach on a gel coat vanity top. Bleach dries out the gel coat and will cause it to crack.

Do not pour bleach products used for cleaning your floors into you sinks or tubs. Pour them into the toilets they are china and will not crack.

removing curling iron burns on cultured marble sink
by: Bernie

Just took one off my sink a guest accidentally did. Simply apply glass stove top cleaner. It was gone in less than 5 minutes and 3 applications. I was going to replace it. It was amazing.

==== Countertop Specialty comment:

Glad that worked Bernie. Good tip!

NOTE that this was on "cultured" marble, which is completely different than a real marble countertop or sink.

Do NOT apply oven or stove top cleaner to a real marble countertop. Such products will damage and dull the marble surface.

Fixing cultured marble countertop burn
by: Eddie

Clean out divit and then fill with super glue, the glue reacts with the cultured marble and absorbs the natural color.

Let glue dry several days. I know that sounds like a lot but the results are worth it.

Then use a dremel Moto-tool or 4" grinder, grind mountain of glue down to surface edge, but beware fumes that come off of glue are unbearable. Wear s mask and goggles, then finish sand with 50 grit sandpaper on Palm sander and that's it.

Faux marble table top
by: Anonymous

How would I fix a faux marble table top that has had an abrasive pad used on it to clean it? The end result is a cloudy haze on table where pad was applied. Any tips for fixing this? Thank you.

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