This weekend we did some tests with the VISE polyurethane glue that Damo of Damo's Water Rockets found here locally in Australia. PL premium is not sold here and shipping costs can be quite high from the US. The VISE glue seems to have good adhesion properties to PET but its viscosity is much higher compared to PL which makes it more difficult to work with when splicing bottles.
We did tests to change the viscosity of the glue and also glued two splices. One with the regular vise glue and one with the thicker mixture. We will publish the findings in the next update of the main web page.