@Alan Merklin posted:Marshall your "upholstery guy" is genuinely full of crap. Speedster seats have been upholstered over fiberglass seats shells for decades and continue to be constructed this way to date, As I initially said and recommended to you, your Speedster needs to be stored indoors and not outdoors as you do 24 / 7. By doing so, this is the majority of your overall issues.
BAM!
@Stan Galat posted:Because you said:
Thousands of fiberglass speedster buckets have been successfully and beautifully upholstered using the methods your guy says are not viable. I'm "slumming" because I've been running something "NEVER designed to be upholstered" for over 20 years.
As far as a canvas cover being an interesting diversion - perhaps? I've never seen it on any pictures of old Porsche racers from the 50s or 60s, so I'm wondering how it can be a "real, old-school, canvas racing seat cover", but I'd love to see what you are talking about.
MORE BAM!
My Vintage Spyder seats are both glued and stapled together. They are 21 years old, and just fine. I even took them apart, installed carbon fiber seat heaters, and put them back together in 2016-2017. They're still in fine shape. other than some wear on the leather in a couple spots. My car is ALWAYS garaged.
I personally have NEVER seen a canvas covered seat, ever.
Marshall's upholstery guy sounds like a real douche. I've seen this before with upholstery guys. There are some really good ones out there, though.