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The E46 vert forum. Talk about dropping your E46 top here.

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Old 08-20-2019, 06:55 PM   #1
lovemy325
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Join Date: Jan 2017
Location: The armpit of the Northeast
Posts: 19
My Ride: '05 325ci convertibl
Year: 2005
Model: 325ci convertible
Transmission: Automatic
Waterproofing the convertible top

Hello all,

I need to waterproof the canvas of the convertible top. The local auto store had only marine fabric waterproofing product. It states it is good for all fabrics. Do you think this is okay to use, or should I order the specific car product online? The top is in fantastic shape for being 15 years old and I donít want to ruin it with the incorrect stuff.


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Old 08-20-2019, 07:43 PM   #2
bremerd1
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Join Date: Feb 2017
Location: Tampa, Fl
Posts: 102
My Ride: 323
Year: 2000
Model: CI
Transmission: ZF 5HP19
I've regularly used 303 Aerospace on my '00 323Ci convertible top. I've owned the car for three years, and the top has been on for a unknown number of years prior to my ownership.

I also use it on the top I just replaced on my '03 325Ci. No ill effects on either, but it does have to be put back on every few months...

Dan B
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Old 08-21-2019, 07:49 PM   #3
pedro2u
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Join Date: Nov 2017
Location: Amherst NH
Posts: 55
My Ride: 2005 330Ci ZHP
Year: 2005
Model: 330CI Vert ZHP
Transmission: 6sp MT
I used regular 303 Fabric Guard (not Aerospace). Both of them say they're made for fabric convertible tops so not sure which is better

I can say that I'm really pleased with it. Water still really beads up on the top after applying it and I applied it last summer! Going to get a new application this weekend

https://www.goldeagle.com/product/303-fabric-guard/

https://www.goldeagle.com/product/30...ce-protectant/
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Old 08-22-2019, 06:09 PM   #4
bremerd1
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Join Date: Feb 2017
Location: Tampa, Fl
Posts: 102
My Ride: 323
Year: 2000
Model: CI
Transmission: ZF 5HP19
I've used them both in the past. Neither do overly-well in extended direct sunlight - I typically apply them twice a year: just before summer (late-May), and again before the cooler months (November).

Dan B
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Old 08-23-2019, 07:14 AM   #5
pedro2u
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Join Date: Nov 2017
Location: Amherst NH
Posts: 55
My Ride: 2005 330Ci ZHP
Year: 2005
Model: 330CI Vert ZHP
Transmission: 6sp MT
My top doesn't see a lot of extended sunlight, so can't speak to effects of that, but that might explain why a year later water is still beading up on it.

Mine is lucky to be garaged, and stored winters. if I'm taking it out for a drive, that top is DOWN!!
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Old 09-03-2019, 12:33 AM   #6
TitaniumSilber
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Join Date: Dec 2018
Location: BC Canada
Posts: 47
My Ride: E46 Cabrio stick
i go to the local spray & wash. WAX CYCLE. must be a GOOD place.

WAX is INCREDIBLE there. water drips off like a whore not getting paid.

jus sayin.
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Old 09-03-2019, 11:32 AM   #7
TheRiddle
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Location: Tuscany & NY
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My Ride: M52TUB28-Vert
Gyeon Quartz Q2 FabricCoat

top stuff !!!
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Old 09-03-2019, 10:57 PM   #8
troyak
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Join Date: Nov 2016
Location: Vancouver Island
Posts: 71
My Ride: 330CI (UK)
Year: 2002
Model: 330Ci
Transmission: Manual
I use Autoglym Convertible Top Maintenance System. Made my top look new, and the protectorant has lasted very well
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