Expanding Foam Rodent Blocker from The Big Cheese is an expanding foam that rapidly expands and then dries to provide an impenetrable block to invading rodents. It is ideal for closing gaps around pipes, in walls and cavities, and any vulnerable area where rats and mice may find their way into your home, garage, or garden shed. Expanding Foam Rodent Blocker can be used together with The Big Cheese Wire Wool Rodent Blocker Kit (STV250) when filing larger holes.
Identify gaps in brickwork, around pipes, drains and anywhere rodents may find entry points. Remember that mice are able to gain entry through very small holes as little as a pencil width.
Attach the nozzle and spray the foam directly into holes you suspect rodents may be using to gain access.
The foam expands to approximately double its size on drying.
When it is completely set, excess foam can be trimmed to leave a neat finish.
For larger gaps, we recommend the use of The Big Cheese Wire Wool Rodent Blocker Kit (STV250) to first create a strong wire barrier.
This can then be finished with a layer of Expanding Foam Rodent Blocker to close remaining gaps and leave a neat finish.