Here in Oz there are at least two aluminum hulled RIBs on the market: Swift and
Gemini. The Swift hulls are made here in Oz, and are powder-coated. Interestingly, the
Gemini models use hulls purchased from Swift -- they are identical -- but the Hypalon tubes are made in
South Africa. They are not the cheapest makes around, but are less expensive than most of the "name brands", ie
Zodiac or Avon.
Both are very good dinks... we've had a 3.5 M
Gemini for about 7 years now, and while the powder coating on the bottom has been badly scratched, no
corrosion issues have appeared. Incidentally, when ours was new it was pinched, the
outboard removed, some petrol dumped into the hull and set afire and apparently launched into the Derwent river. The police found it a few days later and we recovered the badly scorched hull and mostly burned out tubes. After a major effort of
cleaning up, Gemini replaced the tubes for about half of the cost of a new dink... so I can say that our hull has lead a difficult life and is still going strong. The replacement tubes are now about 6 years old, and are nearing the end of their life... maybe another year and they'll be due for replacement again.
Cheers,
Jim