G4 is a one part moisture cured polyurethane very similar to varnish. It comes in different viscosities determined by the application. G4 is sold as pond sealer but was originally made for sealing wood.
iCal Calendar FeediCal feed
This automatically generates an iCal feed or file for all future events, which can the be used to import event information into popular calendar and scheduling applications such as Google Calendar, Outlook, ThunderBird, etc.