Walmart sells cupboard liners made from rubber, lay it under your rug, and it will keep your rug in place.

Rug backing is sold at Joanns. It is a rubberized grid, cuts easily with scissors and is 54"wide. It is with the vinyl in the Home Decorating dept. You may use a 'regular' coupon on it, but not a fabric coupon. You can tack it on in just a few places and it will stay. Caution - It will not move!! FYI - the full sheet rubberized cupboard liner can create a mark on your floors because it is solid. No space to breathe. The rug liner is small squares - think a super loose woven.

There is some sort of a paint-on product that you can buy for rugs.
I've seen it on Amazon, and know the USA people can buy it in stores.
Have never found it in a bricks and mortar here in Canada.
So maybe you will nave no better luck than me, with your being in the UK.
Would like to see the product IRL and read the labels, before purchasing via Amazon.

Has anyone used this product?
Comments?
Thanks!

I saw that online as well QuiltE and wondered about it. It is quite expensive to get over here though. I think tacking on rug backing will be the way forward. I wonder if the backing is machine washable...

Years ago my husband made latch-hook rugs and put the paint-on product an the back, I would not recommend it! It got crunchy over time. Tacking on a backing seems like the best idea.

Expensive here too, and another reason why I wasn't willing to take the risk!

ChristinElf ... Thanks for your feedback on the product. I'm definitely even more cautious of it, with your comment.

Although when you say "years ago", there is always the question as to whether the product may have been changed/improved since then. And of course, it may still have a not-so-desirable outcome.

The same co. now has a rectangle pattern. It also uses 1 jelly roll. A friend suggested cutting leftover batting into strips to use. Bosal does have a "jelly roll" of batting that you could use for these but I do have many cut off batting pieces I could cut up.

Thanks for the feedback QuiltE. Ctrysass it is interesting that they sell jelly rolls of batting now!

The jelly roll rug was our last sewing club demo. Cute project. I got the stuff to make it but haven't started - yet. You could also make it as large or as small as you'd want.

I used Elmer's washable school glue on a stair tread that once dry didn't budge! To remove, just use a damp cloth and work it loose. I dried the wood floor as I went along. No residue and no damage to the wood nor the rug. The glue washed out of the rug just fine.