Random tip - removing 3M sticky mounts

[PaulCa]

I've had to remove these 3M foam mounts like used by dashcams, helmet cams, go-pros.  It isn't immediately obvious, but here are two ways.

 

Credit card (or similar preferably an old one).  You almost use it like a knife to scratch the gel glue off the surface, rocking it as you slide it under the mount, flat against the surface its on.  The credit card shouldn't damage glass or paint work if you are careful.

 

String, fishing line or dental floss.  Just loop it round it and "rope saw" it off.  This can leave bits of the foam behind if the floss cuts straight through the foam and maybe need to be clean up with a credit card afterwards.

 

I think most gentle detergents will remove the residue, if any, with a bit of work.

 

I wouldn't attempt to pull or pry them off with force,  it might damage the surface, although twisting them off might work if a bit messy.

[manxie49]

Hairdryer to remove the mount and WD40 or something called sticky stuff remover also works a treat, to remove the residue left behind.