DIY Onyx Countertop Repair: How to Fix Tiny Holes

Repairing tiny holes on an onyx countertop can be done, but it will require some care and attention to detail. Here are some steps you can follow:

1. Clean the area around the hole with a mild detergent and water. Dry the area thoroughly.
2. Apply a small amount of epoxy filler to the hole. Onyx is a porous material, so you'll want to use an epoxy that is designed for use with natural stone.
3. Carefully smooth out the epoxy with a putty knife, making sure to keep the repair as level as possible with the surrounding surface.
4. Allow the epoxy to dry completely, following the manufacturer's instructions.
5. Once the epoxy is dry, use a fine-grit sandpaper to gently sand the repair to match the surrounding surface of the countertop.
6. Finally, clean the area thoroughly and apply a sealer to the repair to protect it from stains and moisture.

Tools you may need:

• Epoxy filler for natural stone
• Putty knife
• Fine-grit sandpaper
• Clean cloth
• Sealer for natural stone

It's worth noting that even with the best repair, the repair may not be invisible. If you want a seamless repair, it may be best to hire professional.