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How to Refinish Cracked Resin Bathroom Vanity Sink Basins

Repairing and refinishing cracked resin bathroom vanity sink basins isn't just about aesthetics. If you don't repair the surface of the damaged basin in time, the cracks can spread, leading to leaks that can be expensive to repair. Before you even think about attempting to refinish a cracked resin vanity basin, you need to know the appropriate materials to use and the proper way to apply them or you may end up making the damage worse.

Dry the sink basin thoroughly using a hairdryer. If you are unable to keep water from dripping from the faucet, turn off the water at the main valve.

Abrade the surface of the vanity sink basin to promote adhesion by sanding it with 120-grit sandpaper.

Wipe down the surface with a tack cloth.

Apply an epoxy adhesive to the cracks in the resin using a toothpick. Work slowly and meticulously to prevent the adhesive from getting outside the cracks onto the surface of the sink basin.

Allow the epoxy adhesive to dry for one full day.

Apply blue painter's tape to any areas you want protected from paint.

Refinish the resin bathroom vanity sink basin by coating it with spray epoxy or appliance paint. Apply only a thin coat in short intermittent bursts rather than in one, steady stream. Allow the surface to dry for two hours and then apply another coat if necessary.

Things You'll Need:

  • 120-grit sandpaper
  • Tack cloth
  • Hairdryer
  • Epoxy adhesive
  • Toothpicks
  • Blue painter's tape
  • Spray epoxy or appliance paint


  • Cracks in a resin bathroom sink basin must be sealed with epoxy adhesive before you refinish with paint. Never attempt to paint over cracks without filling them first or you will see a recurrence of the problem.



  • Cracks in a resin bathroom sink basin must be sealed with epoxy adhesive before you refinish with paint. Never attempt to paint over cracks without filling them first or you will see a recurrence of the problem.

Writer Bio

Ryan Lawrence is a freelance writer based in Boulder, Colorado. He has been writing professionally since 1999. He has 10 years of experience as a professional painting contractor. Lawrence writes for High Class Blogs and Yodle. He has a bachelor's degree in journalism and public relations with a minor in history from the University of Oklahoma.

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How to Paint a Sink

How To Paint A Sink: Detailed Tutorial on How to Make Over an Ugly Sink with Paint. 


This isn’t the first time I’ve painted a sink.  I’ve done it before …


before I was blogging.


Back when I was just a blog reader.  A student of DIY blogs, if you will …


Had I known back then that I would start a DIY blog, I would have known that my how to paint a sink tutorial required me to take a proper before picture.  Like so.




Of my faux marble-look fiberglass bathroom sink in all it’s cringe-worthy glory …




And if I had been blogging the first time I painted a sink, I would have know to take a picture of the supplies I used …



including the Homax Tough as Tile Tub, Sink & Tile brush-on epoxy.


And I would have given you a full materials list …



Homax Tough As Tile Tub, Sink & Tile Epoxy

(there is also a spray on Homax product that you can find by clicking here)

CLR Kitchen & Bath Cleaner

Steel Wool


Paint Brush


Finally, if I had been a blogger the first time I painted a sink, I would have taken step-by-step pictures along the way …


but I didn’t take any pictures the first time I painted a sink.


Luckily I’m a blogger now.  And luckily, I’m an Ace Hardware blogger now and they generously provided me with that Homax Tough as Tile product so I could paint that hideous sink up there in those cringe-worthy before pictures.


How To Paint A Sink

How To Paint A Bathroom Sink: Quick, Easy and Inexpensive Way To Update Your Bathroom - No Plumber Needed!

Step 1: Read the Instructions.


Carefully. I’m serious. Because I did read the instructions and there was mention of a Homax cleaning solution to use on the sink. Well, I only had the brush-on epoxy paint. Luckily I’m an Ace Hardware blogger so I could turn to Ace Hardware’s expert spokesperson, Lou Manfredeni.  And he said that I could prep the surface for the epoxy paint using CLR or Pine Sol.



Step 2 (Optional): Remove the Faucet.


Ace Hardware generously gave me an beautiful Moen Banbury Two Handle Bathroom Faucet in a chrome finish to replace our sad, sad, old faucet.  So we took the old one out …



… and let me tell you, that old faucet didn’t want to go.  Once again I must thank my husband for tackling this less than pleasant job …


If you don’t plan to replace the faucet, you can just tape it off with painter’s tape before applying the Homax Tough as Tile epoxy.



Step 3: Clean the Surface.


The instructions can’t stress enough the importance of surface preparation.  Give the sink a really good scrub down.  I used CLR.




Rinse and dry.


how-to-paint-bathroom-sink 2



Step 4: Scour with Steel Wool (Grade 000)


Use small circular strokes to scour the surface with grade 000 steel wool …




Rinse and dry.



Step 5: Repeat Steps 3 & 4 a Total of 3 Times.





Step 6: Tape Off Area.


Using painter’s tape, tape off drain and area around sink that you don’t want painted.





Step 7: Paint First Coat.


Carefully stir epoxy.  You don’t want bubbles to form.  Use a nylon bristle brush to apply in long clean strokes.



Don’t overload brush.  A thinner layer is better.


I also go back over to make sure the strokes start at one end and end at the other.


For the sink basin, I applied in a circular pattern starting at the top rim and proceeding down to the drain.



Step 8: Apply Second Coat.


The second coat needs to be applied 2-4 hours after the initial coat.  If more than 4 hours have passed, allow the paint to cure for 72 hours before applying the second coat.


Also, if drips or runs appear in the first coat, let cure 72 hours and then use your 000 grade steel wool to scour them away.  Rinse and dry before applying the second coat.



Step 9: Final Cure and Use.


Do not remove the painter’s tape until the epoxy has fully cured for a minimum of 72 hours.



To care for the surface, use non-abrasive non bleach cleaning products and a soft sponge or cloth.


Now, can I just tell you how much I’m loving this solution?  So much easier and less expensive than pulling out the vanity and buying a new vanity and hiring a plumber and contractor to install the new vanity …



Oh, yeah, I gave the cabinet a spruce with some paint and wax and new hardware.  But I’ll share that project at a later date …




most likely after I get some  beadboard wallpaper up on the walls.  A project I’m hoping to tackle this week …



Now here’s the really exciting news.  Ace Hardware wants to give one of my readers a quart of Homax Tough as Tile brush-on epoxy AND a $50 Ace Hardware gift card.  Enter here …

a Rafflecopter giveaway

So, aren’t you glad that I’m a blogger the second time I painted a sink?  Not just for the complete tutorial, but because now I can share an official “before and after” picture …

Paint A Sink: How To Paint A Sink Tutorial


For the full bathroom reveal, click here …

Small Bathroom Design, Organization Ideas

I also painted the sink in our powder room. You can learn more about it by clicking here …

Painted Bathroom Sink

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Easy Fix to Beef Up Baseboards (click here)


This post was written as part of my partnership with Ace Hardware as a member of the Ace Blogger Panel. Ace Hardware provided me with all the materials needed to complete this project and product review, including the Homax Tough as Tile Brush-on Epoxy and Moen Banbury Two Handle Bathroom Faucet.  However, all opinion about the products supplied are 100% my own.


*some affiliate links included in post.


Filed Under: DIY, DIY & Crafts

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How to Refinish a Ceramic Sink

While a porcelain sink will last many years, over time, the surface will wear. Rather than removing and installing a new sink, you can refinish the ceramic sink and restore it to its original beauty. This is especially helpful when you are trying to restore a house to its original state. You cannot use standard paint to restore the sink however. You must purchase a paint with an epoxy base, which will dry to a smooth, hard finish. Before you can apply the paint, you must properly prepare the surface so that the compound will adhere to it.

  1. Provide Proper Ventilation

  2. Open any windows in the room where you will be working and set up a fan so that it pulls the fumes out of the room. You must have proper ventilation when working with the paint for this project, as the chemicals can be quite strong and odorous.

  3. Give the Sink a Good Cleaning

  4. Thoroughly clean the sink using the rags and cleaning fluid. Our Pastimes recommends using a trisodium phosphate cleanser. Don't forget to wear a pair of rubber gloves before using the cleaner on your sink. Allow the sink to dry and then wipe it out with a dry rag.

  5. Sand the Sink's Surface

  6. Sand the entire surface of the sink and use dry rags to remove any dust left behind. The surface of the sink must be rough or the paint will eventually peel.

  7. Protect the Walls Surrounding the Sink

  8. Cover the walls with old newspaper and use painters tape to mask any surface that you do not want paint on, says Homax.

  9. Take Proper Safety Precautions

  10. Put the respirator on and spray the entire surface of the sink in a thin coat using the spray primer. Allow the primer to dry for one hour between coats. Do not try to cover the entire sink by applying one coat or it will bubble and peel away. Many thin coats are preferable to a single thick coat. Allow the final coat of primer to dry for 3 hours before moving to the next step.

  11. Apply Several Coats of Paint

  12. Apply the epoxy paint for sinks and tubs to the surface of the sink by spraying several thin coats on the surface. Hold the sprayer approximately 10 inches from the surface of the sink while spraying. The first coat of epoxy spray paint should look like over-spray on the surface. This way you avoid paint runs. Allow each coat to dry for one hour before applying the next coat.

  13. Finish With a Polyurethane Topcoat

  14. Allow the painted area to dry for at least 8 hours after the last coat. For a shiny surface apply a polyurethane topcoat to the sink once the paint has thoroughly dried. Allow each coat of topcoat to dry for one hour before applying the next.

  15. Things You Will Need

    • Cleaning fluid

    • Rags

    • Fan

    • Respirator

    • Medium-grit sandpaper

    • Painter’s tape

    • Old newspapers

    • Primer

    • Epoxy-based paint


    Do not attempt to complete this project without providing adequate ventilation and wearing a respirator.

How to Refinish a Porcelain Sink


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