Super Glue And Baking Soda For Quick Gap Repairs?

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By Steve Bush Posted on 24th September 2019 | Modified on 24th September 2019

Engineer In Wonderland

Super glue and baking soda for quick gap repairs?

I was surprised to hear of a gap-filling repair technique that uses a combination of super glue and baking soda.

That is: ethyl 2-cyanoacrylate (or similar) and sodium bicarbonate.

Apparently, the baking soda is not just a passive filler, but quickly provides ions that the glue needs to harden – see this page for the chemistry.

The method is to fill the gap to be repaired with baking powder, then drip on runny super glue. It is solid within a minute.