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My 3 kg cat licked a dab of expanding polyurethane glue from my workbench — is this an emergency?

Cats · Emergency guide

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Yes — this is an emergency. Polyurethane glue reacts with moisture in the stomach and expands into a hard foam mass that cannot pass on its own, and this can happen with surprisingly small amounts. Take her to a vet immediately; do not induce vomiting because the expanding foam can block her airway on the way up. Tell the vet it was polyurethane glue so they know surgery may be needed to remove the mass.

Why is this dangerous?

Polyurethane (Gorilla-type) glue reacts with stomach moisture and expands into a solid foam mass that cannot pass — a surgical emergency. This happens with surprisingly small amounts.

Cyanoacrylate (super glue) bonds skin and can glue the mouth or eyelids shut, and white craft glue is mostly low risk but can cause vomiting in large amounts.

Why speed matters

Delaying care significantly worsens outcomes. Some signs appear hours or days later, so "looks fine right now" is not a reason to wait.

Signs to watch for

  • Vomiting, retching, unable to keep water down
  • Bloated, painful abdomen
  • Not eating, lethargy, weakness
  • Mouth or lips stuck together (super glue)
  • Collapse and dehydration as the mass blocks the stomach

What to do right now

  1. Go to the vet now — expanding glue must be removed surgically and delay makes it worse.
  2. Tell the vet the exact product type (polyurethane, super glue, craft glue); treatment is completely different.
  3. Do not induce vomiting — the foam can block the airway on the way up.
  4. For super glue on skin, use warm soapy water or veterinary advice; never pull bonded skin apart.
If your pet shows any of the signs above, go to the nearest emergency vet now and call ahead.

The step-by-step response, from the first minute to the vet visit, is in our Glue & Adhesives (Including Expanding Glue) emergency guide.

Open the full emergency guide: Glue & Adhesives (Including Expanding Glue) →