I bought supertape from a store on ebay.. been two and half weeks since last attachment with this tape and still feels as strong as day 1..
Here's the link hope it works as well for you..
<!-- m --><a class="postlink" href="http://cgi.ebay.com.au/SUPERTAPE-ROLL-BOND-WEAR-Toupee-Wig-Tape-ST1-2M_W0QQitemZ270369384142QQcmdZViewItemQQptZUS_CSA_MWA_Wigs_Extensions?hash=item270369384142&_trksid=p4634.c0.m14.l1262">http://cgi.ebay.com.au/SUPERTAPE-ROLL-B ... .m14.l1262</a><!-- m -->