Best Glue for Ceramic to Ceramic

General:

PVA glues are the best for bonding porous surfaces such as broken ceramic edges and unglazed pottery. Superglues also work but have a much faster setting time. Both dry clear and form a medium-strength bond that will hold up for normal household use. Only a thin layer of glue is required so these glues are ideal for when you have pieces that fit tightly together.

Food-Safe:

These FDA approved food-safe adhesives are designed to come in contact with food. Both of these recommended products are silicone-based which means they are waterproof, flexible, and work across a wide temperature range.

Porcelain:

When gluing a non-porous ceramic surface, you'll need something stronger like an epoxy. Epoxies are a little harder to work with but will create a strong, permanent bond.

Gap-Filling:

Epoxies can also serve as a filler material for mending ceramics that have gaps. Epoxy comes in different colors and can also be sanded and painted. If mending a larger gap, consider using an epoxy putty instead.
In a pinch, you can also use this baking soda trick to turn a superglue into a gap-filling paste.

Disclaimer: These are general recommendations. Please seek a professional engineer's recommendation for any structural, load-bearing, or other use cases that have any possibility of injury or property damage. Contact glue manufacturers directly for product safety questions.

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