Door trim re-assembly : what glue?

[klam]

Guys, what is that black sticky stuff that holds what I reckon is the moisture protection plastic sheet on the door? is it some sort of a polyurethane glue or silicon?

[HardwareBoB]

http://www.4130-products.com/step/vapor/ here is one option.

this site says you can use blu-tack http://www.vw-resource.com/plastic_sheet.html

[klam]

I have plenty of blu-tac but will have to re-stock as my kids will chase me around for stealing it ...

thanks btw

[BillyCorgi]

When I removed the plastic inner lining there was enough stickiness left in the glue to reattach the sheet of plastic film without then need to use additional adhesive?
I had the lining off and plastic opened up about five to six times while I sorted out the central locking motor.
Try softening the glue with a hair dryer?
Cheers!