found some in the US but it was common on boats as it cannot clog or corrode  

 i dont no what you are talking about, little more info maybe or iam missing something.

Unlike normal hinges this is a strong plastic material with two thick strips (that you fix to what you want to hinge) and a thin but strong strip of flexible material between ..................so unlike normal hinges which in sea environments can get clogged and hard to move as a result of salt encrustation this material is totally immune to such issues.

Both the rear door to the dive platform and the door into the cabin on my boat are hinged with the stuff however the cabin door hinge has finally given up the ghost as the flexible joint element has failed so I just want to source the same stuff to replace it with 

 Maybe contact these guys Gordon, hopefully point you in the right direction

http://www.dotmar.com.au/boatboard/boatboard-marine-sheets.html

Thanks Andy - this is the stuff I am looking for

http://www.outwatercatalogs.com/lg_display.cfm/page/70/catalog/Master_Catalog_Vol_42

It lasts a good 10/15 years despite our high wear location (as far as uv effects on plastic) is concerned and is completely maintenance free and very low profile - because it has no holes / gaps like a conventional hinge it also stops water getting through 

Should have gone to the site sponsor first !      

 I've got it on my Ally canopy doors, it sis epic gear but not sure where old mate got it from

Perfect match, dont know why it isn't extensively used in boating applications as totally unaffected by salt water unlike any metal hinge including stainless