I'm installing Cat5E and Satellite Coax cabling around the house and
have a couple of queries:-

1. I need to fill in around the cables where I've brought them through
a brick wall through an oversize hole. Someone suggested expanding
faom but I want to know if the foam will degrade outer sheath of the
cables?

2. Can I use spray on silicome luibricant to lower the friction when
pulling the cables through holes in joists etc?

Thanks
Vet Tech