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Dog ate expanding glue (polyurethane)? Toxic: what to do now

Swallowed expanding glue foams up in a dog's stomach into a hard mass that almost always needs surgery to remove.

If your dog ate or touched this, call your vet or a pet poison line now

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Expanding glue (polyurethane) and dogs: key facts

Verdict
Toxic · Emergency: get help now
What it can do
Vomiting, painful belly, not eating, low energy and not pooping.
What to do now
Call your vet or a pet poison line now. All steps
Sources
ASPCA, Pet Poison Helpline, PDSA. Reviewed 9 October 2026.

What should I do if my dog ate expanding glue (polyurethane)?

  1. Call your vet or a pet poison line now.
  2. Keep the glue container and bring it with you.
  3. Go even if your dog seems fine. The glue keeps expanding as it hardens.

Don't

  • Don't make your dog vomit unless a vet tells you to.
  • Don't give food or water until you have talked to your vet.

Symptoms to watch for

  • Vomiting
  • Painful belly
  • Not eating
  • Low energy
  • Not pooping

Why

Polyurethane glue expands to several times its size as it hardens, forming a cast inside the stomach that blocks it and can damage the stomach wall.

Sources

Guide reviewed 9 October 2026. Page updated 7 November 2026.

General information from the sources above, not a diagnosis. When in doubt, call your vet.