Sticking a rubber backed mat to a carpet?

[Rollerball]

I have a mat on my carpet (very short fibres) that's forever slipping around whenever my wheeled office chair is moved. I have some old double sided 'carpet tape' and that works a bit but the adhesion isn't good enough and it soon loses its grip.

Any ideas please on some really strong and sticky double sided tape which would do the job?

 

[Richard_oh]

Rubber backed mats with smooth backings are always going to move around on carpet to some extent; they're really only designed for smooth floors. You can get mats with a textured backing, often called a claw or gripper backing (just a pattern of small knobbly bits on the back), but this will only limit the movement. Using a sticky tape or underlay for the mat will only reduce the movement at best.

If you're using the mat to protect your floor from office chair wheels, then your best bet is to use a specially designed chair mat for carpeted floors;
https://www.firstmats.co.uk/collections/office-chair-mats
The spikes on the back of the mat and the weight of the chair mean it'll never move - I'm sitting on one right now and haven't moved it once since putting it on the floor around a year ago!

 

[Rollerball]

Thanks a bunch, that's very useful.