If your bathroom sink basin develops a crack from lots of wear and tear, you may be able to repair it instead of replacing the sink. It's important, however, to repair cracked resin (solid surface) sinks as soon as possible to prevent leaks and to prevent further damage to the sink. You may be able to use a two-part epoxy to fix some cracks. Solid surface repair kits are also available, but some deep cracks require a professional to fix the damage.
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Two-part epoxy or repair kits can be bought online or at some local counter-top shops. The repair kits come in a variety of colors, so your sink should look almost new when you are done.
Two-Part Epoxy Resin Repair
Step 1: Wear Protective Gear
Put on all protective gear, including work gloves, safety glasses and a respirator. A primary ingredient in epoxy products is sodium hydroxide (NaOH), which can burn your skin. And if you breathe the fumes, NaOH can cause irritation in your nasal passages and upper respiratory tract.
Step 2: Remove Sink Dirt and Grime
Step 3: Sand the Cracked Area
Step 4: Mix the Two-Part Epoxy
Cut off the end of the two-part epoxy tube. Squeeze the plunger until an even amount of hardener and catalyst comes out. Place this epoxy onto a small piece of cardboard or plastic. Mix the two epoxy components together, using a small stir stick or wooden craft stick.
Step 5: Apply the Epoxy to Sink
Apply the epoxy to the cracked area. Work it in place, using the stir stick, until the crack is full and even on the top. Let it dry overnight.
Solid Surface Repair Kit
Step 1: Follow Steps 1–3 Above
Follow Steps 1 to 3, in Section 1 (above).
Step 2: Open Kit and Separate Components
Separate the components in the surface repair kit. The kit will include a bonding agent, stir stick, small container, catalyst, spreader tool, color match paint and detail brush.
Step 3: Apply the Repair Agent
Apply the bonding agent to the cracked area. You may have to brush it on; some kits have a spray can version. Let it dry several hours in a well-ventilated area.
Step 4: Apply the Catalyst
Apply the catalyst, using the spreader tool or spray it on if applicable. Let it dry for several more hours.
Step 5: Choose Paint Color and Apply
Test the paint you believe to be the best match by applying a small amount to the sink area. If you need to adjust the color, mix in some white paint. Apply with the fine, detail brush. Let it dry overnight.
Joey Pellham has three years experience teaching writing courses in China. He specializes in home improvement/do it yourself and parenting articles. He has written for publications such as Associated Content, Triond, Wordpress, and Blog Spot. Pellham has been freelance writing since 2008. Pellham studied at Washington State University.