09-15-2019, 08:39 PM | #1 |
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Trunk Spoiler Install Help (M Perf CF)
I'm trying to install M Perf CF trunk spoiler on my F32 and after I applied the 3M tape and tried to align it on the trunk I could see the tape on the edges, on the top front side(towards the rear window) was barely touching the trunk, even when I pressed it hard, do I need to double up the tape on the edges? On the rear side and all other parts, the single layer of tape does stick out enough to touch the trunk. :
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09-16-2019, 03:40 AM | #2 |
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No, you shouldn't need double layers of tape for it to fit properly. I installed the OEM CF rear spoiler on my 435 & it fit perfectly. Only used the one layer of tape that was supplied...
Did the install on a very hot day + used 3M adhesive promoter. Didn't really need the promoter, typically always do it for xtra measure - spoiler fit like a glove. I did use some of the plastic variety hand clamps on the tips just to make sure it adhered well in those areas
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09-16-2019, 11:25 AM | #3 | |
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09-16-2019, 12:30 PM | #5 |
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Should I be able to get the same tape from the dealer? Or someplace else? I see 3M recommends 06394 version which is 2.2mm thick.
Last edited by thatBimmerBloke; 09-16-2019 at 10:20 PM.. |
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09-16-2019, 05:32 PM | #6 |
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Get 3m VHB on Amazon.
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09-16-2019, 10:19 PM | #7 |
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09-19-2019, 11:52 PM | #8 |
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Ended up buying 3M 06397, $30 from Amazon, 3M mentions on their website it's used for spoilers, got the promoter too, the front side of spoiler has some grainy film which might benefit from the promoter. The tape is 1.54mm thick, as opposed to 1.1mm of normal 3M VHB that sells for around $10. Will install this weekend.
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09-20-2019, 09:37 AM | #9 |
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09-21-2019, 11:16 AM | #10 |
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Now that you've got the tape sorted, for install line it up exactly where you want it. Using painters tape attach one side of the spoiler to the trunk, literally just use a bunch of it on top of the spoiler to fix it in place. There's enough flex in the spoiler that you can lift up the other side and start peeling the permanent tape backing. Once that side is down, remove the masking tape and pull the backing paper off, sticking the second side down.
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09-22-2019, 07:44 PM | #11 | |
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04-01-2020, 10:54 PM | #12 |
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Resurrecting this thread again. I'll be installing the spoiler again, for the 3rd time, if I survive the next couple of weeks.
I was thinking of using both betalink and 3M tape. 3M tape for 80% of the area and betalink mostly on the front corners/edges to prevent them from lifting up. Also, should be easier to clear the betalink from a smaller area in case I end up removing the spoiler. Any suggestions? |
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04-02-2020, 02:55 AM | #13 |
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Dude, whats this action all about?
You start with aligning the spoiler at the trunk w/o tape and other helpers. If you encounter an improper fitting caused by large gaps you couldnt fix that with additional double or triple layered tape. In that case I would return the spoiler and thats it. The normal way to install is put the 3M double sided tape first onto the spoiler, into the middle section I had used parallel stripes to cover more of the surface. Then place your spoiler again with covered adhesive strips against the trunk and make a last check. If its fine, remove the cover strips and install that thing. I had started to place the spoiler at the top touching points of the trunk, then make your way downwards until it is resting completely onto the trunk. To keep the pressing force up, I had placed additional some painters tape over the spoiler and the trunk at five places over the whole spoiler and let it rest for one night. Next day removed and cleaned, worked fine for me. Spoiler had withstanded speeds up to 250kp/h and Im pretty sure, you into the US would never achieve this speed aside of tracks
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04-02-2020, 08:07 AM | #14 |
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I have already tried this last year with high industrial strength 3M tape but it started lifting on the edges in the front. It would have stayed on the trunk but with those small gaps on the edges which I don't like. Had high pressure on both sides for 2 days. It aligned perfectly but started lifting on 2nd and 3rd day
What I didn't try was clay-baring the trunk first, just used Isopropyl alcohol to clean it, maybe that plays a big part. |
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04-03-2020, 02:46 AM | #15 | |
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Also you have with or without tape 2 small gaps after positioning? That tells me from the distance, that the spoiler is a) not proper shape fitting manufactured or b) is disformed by any cause. If real deep cleaning of the two surfaces don't fit enough to hold the two parts together and this is at the end a mechanical issue, Im affraid that you have to replace the spoiler then to another one. Alternately try to fit it onto a similar car and check for the present gaps if they are also there.
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Citizen of ///M - Town, where too much is just right Some say, that my scrotum has its own small gravity field and when Im slowing down that brake lights come on at my buttox Last edited by Dang3r; 04-03-2020 at 02:51 AM.. |
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04-03-2020, 09:31 AM | #16 | |
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Also, it is the OEM M-Performance CF spoiler. Now I'm thinking of using tape for most of the parts but betalink on the edges. But yes, probably the trunk needed more cleaning than that. Will probably still give it another try with just the tape after deep cleaning the trunk. Maybe what I thought was enough cleaning wasn't good enough. Betalink seems a better option as I don't want to go through the process once again after that |
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04-03-2020, 09:45 AM | #17 |
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I appreciate your feedback and yes, give it another try. At mine the 12mm double sided 3M tape did the trick. Good luck out there.
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04-05-2020, 05:57 PM | #18 |
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Thank you This is what I used last time. I think it was $30. 3M suggests this for spoilers on their website.
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