I assume it is an indoor cat. (If not then I would strongly suggest against using this product as you not only leave your cat defenseless but also in perilous danger of losing its footing if it tries to climb or escape anything)
Have you tried trimming your cat's claws? You need to get special clippers that should only be a couple dollars at a pet store. The reason for this is that it rounds the nail off, using regular clippers will make the nail flat at the end and cause it to split and peel. Youch! Cats generally scratch either to mark territory or to file down excess claw growth. Excess growth is particularly a problem with indoor cats since they do less climbing.
You did not mention the age of your cat either. It is possible to train cats to not claw important items with a little diligence. First you should provide an alternate item to scratch such as a stratching post or log, kitting condo, etc. Second you need to make sure you supervise the cat or lock it in a room when you are away where there is nothing that can be ruined (such as a bathroom). I found that children's squirt guns worked well as a discouragement. A few squirts with a firm no and you are well on your way to training your cat not to claw. If you do that and keep the nails trimmed quite likely your cat will stop scratching.
If you recently got a new animal or the cat is new to the house this might be causing him to try to scratch to mark his territory, it should also settle down in time with proper determent techniques. If your cat is not spayed this might also be something to consider in order to cut down on some of the territorial behavior.