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Various people have come up with the following possibilities:
* FLAME SPRAYING with either:
- aluminum ("About $100.00 U.S. It sounds like alot, but it last forever.");
- zinc;
and finish with heat resistant paint;
* CERAMIC COATING. Seems there have been some articles on this subject in
the US VW magazines. ("You have to ship your exhaust to them though and it
costs about $150 to $200. It gets coated inside and out and will last
forever." "...special baked-on ceramic coatings designed to absorb and/or
radiate heat better. They would apply a reflective material to the inside
and an absorbing layer on the outside, to keep the heat
in the exhaust gases. Very durable ...")
*GALVANISING. Apparently it is possible to have exhausts galvanised, as
someone bought one 6 years ago which is "still in great shape, even went
through 1 winter. Unfortunately, all this exhaust is obsolete on the
aftermarket now."
*HEAT RESISTANT PAINT. Can be brushed on. Must be cheapest alternative.
*None of the above. Buy a STAINLESS STEEL EXHAUST, made by a few specialised
companies only. These are of a different pattern due to the difficulty of
forming and welding the metal used. Cost around DFL 600 = US$ 300.
Does anyone have anything to add to this?
Hanno Spoelstra <H.L.Spoelstra@WbMt.TUDelft.NL>
Bloemendaal, The Netherlands