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So my Origin boot lip and roof wing arrived from Japan via Streeter this week, yay!

What's the recommended way to prep these things? It's glossy black FRP, I saw somewhere that a light sand, primer and paint (maybe two coats) is all you need, is that right?

What about mounting them? Double sided tape, polyurethane, sikaflex, something else - what do you use? I'd prefer something that can come off a couple of years later without ruining the paint/glass..

The roof wing is a solid fit against the rear glass, the boot lip is ok but may need a bit of sanding in the middle to sit tight.

With the colour, I'm thinking of going gloss black for both, to kind of complement my matte black front lip (and the awse weather shields :) :

11905068066_c6f0822022_z.jpg

This is pretty close to what I'm after (from JDMST):

post-35403-12695160632106637524.jpg

The alternative is body colour, it's classier but I kind of like the drift look above:

mg6597edit.jpg

What says you?

You should be fine to use sikaflex or some similar adhesive. Grab a caramel wheel to get it off when/if you want to get the sikaflex off.

I used a wheel on (at least) 5 year old sikaflex that was hardened and it worked a treat.

Bought mine for $15 off ebay.

You should be fine to use sikaflex or some similar adhesive. Grab a caramel wheel to get it off when/if you want to get the sikaflex off.

I used a wheel on (at least) 5 year old sikaflex that was hardened and it worked a treat.

Bought mine for $15 off ebay.

Thanks mate.

Any suggestions on how to prep and paint the FRP material properly?

  • 2 weeks later...

Managed to get this done over the weekend, the prep was a bit tedious and I managed to get Sikaflex all over the place when mounting but it turned out alright. I might do a proper write up later on. Here's some quick shots prior to any wash/wax/polish, I'm hoping to get a bit more gloss once that's done:

EDIT: Does anyone know where to get a decent high mount brake light for the rear window? I don't think a parcel shelf one will work as it's obscured by the rear wiper...?

12285182773_2cce8a79ae_c.jpg

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Edited by V28VX37
  • Like 2

I plastidipped my weather shields, one of those wings would tie in nicely in black

Good idea, did you have to pull them out for that?

I'm thinking black bonnet now too, although that could be a step too far...

Good idea, did you have to pull them out for that?

I'm thinking black bonnet now too, although that could be a step too far...

Nah just masked it up with newspaper and tape post-493-13922029314971_thumb.jpgpost-493-13922029469582_thumb.jpg

  • Like 1

Not bad!

Turns out I didn't do the best job with sikaflexing the boot lip and it started coming apart at one end :/ Anyhow I pulled it off and spent an afternoon cleaning up the polyurethane ... and ended up painting the lip body colour whilst it was off the car :) It's yet to go back on, will post a photo once it's done.

Some photos below of how the boot lip looks after I changed my mind about the colour.

Couple of tips for anyone wanting to mount theirs properly:

  • Make sure the fit is good before priming and painting. I ended up sanding back the inside middle section for a better fit before repainting the whole thing...
  • Do not go anywhere near the edges with Sikaflex. On the first go I went maybe 10-15mm from the edges and a fair bit squirted out, it's a prick to clean. Second time 20mm or so away and it was pretty good all around. Also, do not try this on a 40 degree day like I did the first time around, it will not cure properly.
  • Second time I used 2 ratchet straps to pull the lip forwards and down at each end, plus a plank sideways across the whole lip, held down but clamps at each end. Let it sit for 48 hours. Much better.
  • Oh and I didn't find any way to get a proper glossy finish at home (black or coloured, with or without clear coat), I reckon you need to bake the paint for that. Oh well.

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  • Like 2
  • 1 month later...

Thanks guys! Yeah definitely test for fitment before mounting, much quicker than fitting it twice...

Mine's stayed on perfectly for two months now. Here's a behind the scenes shot, I let it sit like this for 48 hours to cure properly:

13892957373_d4692873d1_z.jpg

  • Like 3

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