Expanding foam for vermin

[cactikid]

Wonder if anybody has used expanding foam vermin proof or cartridges of silicon to relel them as have a few holes needing a top up.
Any names come to mind.

 

[pabloescaban]

Wonder if anybody has used expanding foam vermin proof or cartridges of silicon to relel them as have a few holes needing a top up.
Any names come to mind.

Foam or silicone sealant will just get chewed up.
How wide/deep are the holes?
Will they be on view?
Why not use mortar?
Or if in wood, use car body filler and fibreglass

 

[cactikid]

No idea how deep the hole is as hidden behind plastic waste pipes at the corner of a wall.
I did seal that with expanding foam and thought it was done until i saw a hole in the corner block.
There are vermin proof foam and sealants used in USA by the companies that do control.
Space to work in might only be 1 1/2".
There are more droppings in that area which tells me must be entry point somewhere and needs blocking.