Yes, that's right. Zap. In fact, it's Zap-A-Gap. About 6 months ago i bought a smal plastic bottle of Zap-A-Gap, Medium CA+. It's great stuff that probably needs no further introduction. Howwever, after a period of regular use it set in a box with the cap firmly in place. Nevertheless it has changed and is now thick and un-useable. Any suggestions to remedie this? Any advice is much appreciated. Cheers.