How does mouse glue work? - briefly
The glue consists of a sweet, protein‑based gel that attracts rodents and forms a sticky, semi‑solid surface; when a mouse steps onto it, the gel adheres to its paws and prevents movement. Traps are positioned along walls or travel routes so the bait draws the animal onto the adhesive for rapid capture.
How does mouse glue work? - in detail
Mouse glue traps consist of a viscous polymer matrix applied to a backing material. The matrix is typically a water‑based polyacrylate or polyvinyl acetate emulsion that remains fluid until it contacts moisture. When a rodent steps onto the surface, the pressure and body heat cause the polymer to absorb a thin layer of water from the animal’s paws, triggering rapid swelling and solidification. The transition from liquid to semi‑solid creates a strong adhesive bond that restrains movement.
Key components and their functions:
- Polymer base – provides the adhesive backbone; its molecular chains cross‑link upon hydration.
- Plasticizer – keeps the formulation spreadable before activation; evaporates or is absorbed during use.
- Thickening agent – controls viscosity, ensuring an even coating that does not drip.
- Preservatives – prevent microbial growth during storage.
The trapping process follows these steps:
- Contact – the mouse’s foot contacts the coated surface.
- Moisture transfer – sweat or ambient humidity is drawn into the polymer.
- Swelling – polymer particles absorb water, expanding up to three times their original volume.
- Gelation – hydrated polymers interlock, forming a tacky gel that adheres to fur and skin.
- Immobilization – the gel’s tensile strength exceeds the animal’s grip, preventing escape.
Design considerations improve effectiveness:
- Surface texture – a smooth, non‑reflective finish encourages rodents to walk across it.
- Edge sealing – prevents leakage of adhesive and maintains a consistent trapping zone.
- Non‑toxic ingredients – ensure that the trap does not pose chemical hazards to humans or pets.
The adhesive’s strength is temperature‑dependent; optimal performance occurs between 10 °C and 30 °C, where polymer mobility and water absorption rates are balanced. Below the lower limit, the glue remains too fluid; above the upper limit, it may dry out, reducing tackiness.
In summary, mouse glue traps rely on a moisture‑activated polymer that rapidly transitions from a spreadable emulsion to a high‑strength gel, creating a physical restraint that immobilizes the rodent without the need for poisons or mechanical spring mechanisms.