---
title: "Can you mix superglue and baking soda?"
description: "Superglue and baking soda: yes, this is fine. What actually happens, and what to do instead."
url: https://atoneplace.net/can-you-mix/superglue-and-baking-soda/
site: "At One Place"
---

# Can you mix superglue and baking soda?

**Superglue and Baking soda: Yes, this is fine**

Yes, and it is a genuinely useful trick — but it gets hot.

## What actually happens

Bicarbonate accelerates cyanoacrylate curing dramatically and acts as a filler, so the combination sets in seconds into a hard, machinable solid that can bridge a gap superglue alone cannot. The reaction is strongly exothermic: a large amount at once gets hot enough to burn skin and to smoke, so it is done in thin layers rather than in a heap.

## What to do instead

Build it up in thin layers. Do not do it in the palm of your hand.

## Paint, glue and materials

| Combination | Verdict | Why |
| --- | --- | --- |
| Water-based paint and oil-based paint underneath | Do not | Not directly. It will look fine and peel off in sheets later. |
| Expanding foam and water | Fine | Yes — polyurethane foam needs moisture to cure, and misting the gap helps. |
| PLA filament and abs filament | Do not | They will not bond to each other, and they want different temperatures. |

## Common questions

### Can you mix superglue and baking soda?

Yes, this is fine. Yes, and it is a genuinely useful trick — but it gets hot.

### What happens if you do?

Bicarbonate accelerates cyanoacrylate curing dramatically and acts as a filler, so the combination sets in seconds into a hard, machinable solid that can bridge a gap superglue alone cannot. The reaction is strongly exothermic: a large amount at once gets hot enough to burn skin and to smoke, so it is done in thin layers rather than in a heap.

### What should I do instead?

Build it up in thin layers. Do not do it in the palm of your hand.

## Related pages

- [Water-based paint and oil-based paint underneath](https://atoneplace.net/can-you-mix/latex-over-oil-paint/)
- [Expanding foam and water](https://atoneplace.net/can-you-mix/expanding-foam-and-water/)
- [PLA filament and abs filament](https://atoneplace.net/can-you-mix/pla-and-abs-printing/)
- [Bleach and ammonia](https://atoneplace.net/can-you-mix/bleach-and-ammonia/)
- [Bleach and vinegar](https://atoneplace.net/can-you-mix/bleach-and-vinegar/)
- [Bleach and toilet cleaner](https://atoneplace.net/can-you-mix/bleach-and-toilet-cleaner/)
- [Bleach and rubbing alcohol](https://atoneplace.net/can-you-mix/bleach-and-rubbing-alcohol/)
- [Hazard symbols](https://atoneplace.net/symbol/)

## Sources

- Official vendor product documentation — At One Place (/about/)