How to fix hairline crack in sink?

A lot of guests came to our party last year in July and after they left, I witnessed a hairline crack in our porcelain sink. I was quite disheartened and believed we had to buy a new one but my husband believed he could fix cracked sink and actually fixed it. I will suggest you also try repairing your sink at home by following a few steps, as I will be mentioning here.  

How To Fix Hairline Crack in Porcelain Sink?

To repair hairline crack in porcelain sink at home, you will need to:

• Thoroughly clean the area around the hairline crack with a mild detergent and allow it to dry completely.

• Then gently sand the edges of the crack to create a smooth surface for better adhesion.

• Make sure to use a high-quality epoxy resin specifically designed for porcelain surfaces to fix a crack in porcelain sink.

• Next, mix the epoxy according to the instructions and apply it to the crack.

• Use a putty knife to level and smooth the epoxy resin, blending it seamlessly with the surrounding surface.

• Let the repaired area cure completely as per the epoxy resin instructions

• If the repair is visible, you can start polishing the surface with a fine abrasive to get a uniform appearance.

This is a basic strategy to repair hairline crack in ceramic sink. If the crack is a major one, seek a professional’s help. I hope this helps. 

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Once, my son made a crack in the sink of our bathroom. He threw a bottle in the sink with force which led to a few small cracks as a result. I did some remedies to fix it. I see that you are new to this and would need some guidance on how to repair crack in fireclay sink. Let me help you.

How to fix cracked ceramic sink?

Epoxy putty is the ideal material for porcelain sink crack repair. Due to its effective gap-filling capabilities, long-lasting seal, and capacity for sanding and painting. A smooth repair work that endures the test of time can be achieved by using the following steps on how to fix hairline crack in sink.

• You should wash and dry the repair area.

• Cut the putty epoxy to the appropriate thickness using a sharp knife.

• You must mould the putty while wearing gloves for about a minute, or until a consistent shade is obtained.

• Three minutes after mixing the putty, apply it. Apply it into the crack by using the putty knife.

• Make sure the distribution is seamless and even for a better cracked sink repair.

• Scrape the area until the repair is completely smooth and moulded using a finger soaked in warm water and soap.

• Give the cure 15 to 60 minutes to complete before sanding.

• Use a flat sheet to lightly sand the surface until it's flat.

• After you paint the area with ceramic touch-up paint, let it dry.

Guide to avoiding cracks in the sink:

• If your sink is ancient, particularly, stay away from using aggressive cleaners or solvents on it. These have the potential to degrade your sink's surface over time and eventually result in hairline cracks.

• Keep large items off of your sink. This can result in a surface crack and other hairline cracks down the road.

• Avoid switching between hot and cold water too quickly. Over time, the sudden temperature variations may cause your sink to break. 

• Always let hot water cool off in the sink for a few minutes before switching to cold water.

• Employ a qualified plumber to install your sink. Hairline cracks may develop in the future if the installation is not done correctly.

This is your guide on how to repair crack in fireclay sink.