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Old 04-30-2020, 10:46 AM   #30
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Join Date: Feb 2017
Location: North Eastern US
Posts: 646
Quote:
Originally Posted by BRAN View Post
Just brought mine to the paintshop and got the usual comments…

shop: "Oh, they are made out of rubber?
me: Not really, it is more like PU^^
shop: I got to ask my specialist…(after 5 mins) okay, we can do it, but without warranty...and treat them really, really carefully
me: Sure, sure will do

They will primer the whole covers, but will only paint the top, so I can attach them properly.
@Fred: Thanks, for pinpointing the washer movement! Btw did you paint them completely? How did you treat the bonding side?

After having attached lots of plastic covers, trims and pieces over the time, I like to use thin 3M VHB 4941. It always came off the lenses and stayed on the rims/covers. Will do a test when the covers come back next weekend.
Btw, I heavily moddified and trimmed them and I totally understand your thoughts on prepping them. I hope, primer and paint will cover my flwas...lol
Hi Bran, you’re welcome. I had similar comments from the paint shop regarding my sport seat backs. I finally got fed up and did them myself.

Here’s the steps I used to prep, paint and mount the adhesive strips to the covers:

1) washed both sides with Dawn and a soft brush, rinsed well and dried
2) cleaned both sides with SEM poly paint prep
3) spayed top side and edges with two light coats of plastic adhesion promoter
4) primed top side and around edges with a urethane primer
5) let primer cure overnight
6) sanded primer with 400/600 wet
7) taped rest of cover and sprayed ’headlight ring’ with a urethane color called ‘hyper silver’
8) taped ‘headlight ring’ and sprayed rest of cover with urethane car base coat color
9) sprayed entire cover (top side and edges only) with SprayMax 2K ‘Glamour’ clear coat
10) carefully cleaned overspray from undersides with acetone
11) applied 3M adhesion promoter to undersides (single use packets with foam applicator)
12) cleaned headlight lenses with Dawn
13) applied 3M 950-300 xfer tape adhesive to underside of covers, leaving backing paper in place
14) practiced positioning the covers about a million times (you only get one chance with xfer tape adhesive)
15) peeled off the backing paper and mounted the covers

Thanks for the tip regarding the 4941. I really like VHB 4941 also. I actually have some but in this case I wanted the absolutely thinnest mounting possible to avoid as much as possible having the covers stand proud of the surrounding body work (4941 is 1.1mm thick vs 0.13mm for the F9469 because the 9469 does not have a carrier medium).

Looking forward to seeing your custom results! Hopefully I’ll have mine back on the car in the next couple of days
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Rgds, Fred
#317 550 Spyder Anniversary Edition 2004 Boxster S, 3.8L Flat Six Innovations engine, PSS9s, etc, etc . . .
The contents of my posts are for entertainment only. As confirmed by my many motor sports fails, I am not qualified to give product endorsements or mechanical advice
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