I've just spotted this thread guys. So far so very impressive. Word of warning - having had a big chat with my local SIB/liferaft service guy (a man I have the utmost respect for) I will repeat his warning to me:
"Keep MEK the hell way from glued cheap PVC SIBs*"
He was VERY reluctant to let me have some to prep a patch on the Quicksilver. According to him, if a glued seam gets so much as a wipe of MEK, the damage is done and sooner rather than later, it's Sayonara seam time.
*Quicksilver were described as cheap Chinese crap, so go figure. He says they all come out of the same factories....