The cost of using the wrong tape on the floors at the NEC (and other venues such as Excel, Earls Court, Olympia, etc.) can be a massive cost to your company if you use the wrong one! Hence; there are approved tapes for the job of sticking down flooring. Essentially the tape that is approved is ‘more sticky’ on the carpet bonding side (top), than it is on the floor side (the bottom). This means that your carpet or carpet tile joints will hold fast, but the floor side will peel off easily when you break down your exhibition without damaging the floor. If you were to use a non-approved tape you would not only find it harder to remove the temporary flooring but it may also damage the underlying floor or leave residue on the floor. Both of which will result in a fine from the Exhibition Centre as well as a potential cleaning or repair bill, sometimes these can run into thousands of pounds. Trade Shop Direct have such a tape, approved for use at the NEC and other exhibition venues, it is also guaranteed to lift from the floor without leaving residue, you can also recycle it along with your temporary exhibition carpet. Used by all the large exhibition companies this tape gives the piece of mind that you are not going to have a fine come your way. You can find it here https://www.tradeshopdirect.co.uk/exhibition-carpet-tape-nec-approved-yellow-38mm
Buy the correct tape and save the fine!