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Old 08-14-2008, 01:42 PM   #1
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reparing OEM plastics

Whats the best way to repair rashed and even cracked plastics?

I want to fix some up and paint them whats the best way to go about doing this?
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Old 08-14-2008, 01:46 PM   #2
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bump for a good question.
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Old 08-14-2008, 01:49 PM   #3
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Old 08-14-2008, 01:53 PM   #4
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The "best" way is to plastic weld them. I've done some epoxy repairs, but they never hold up. Others use fiberglass, but the minute it flexes, it's done (and it always flexes, just a very minimal amount will do it).

OEM plastics are made from different types of materials, even on the same bike, so you have to choose the correct welding rod when doing this. You can get a decent plastic welding kit at Northern Tools (don't get the cheapest one though) and practice on stuff.

To repair road rash, it's very easy, you can use any Bondo type plastic body filler. Use 60 grit and prep the area, fill, sand per instructions, viola'. Ready for prime and paint.

Tony summed it up at the end of this thread:

http://www.motohouston.com/forums/sh...ad.php?t=25927
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Old 08-14-2008, 02:01 PM   #5
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I have a little road rash on my left side and really would prefer to save those $400 or so that will cost me if I take the fairings to a professional. Where can I get the plastic body filler and all the other tools required for the job? also, is it straight forward enough for some one with no previous experience?
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Old 08-14-2008, 02:33 PM   #6
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just very time consuming and labor intensive, but you can do it.

thanks thats what I thought I had to do and with a list of materials I'll be able to do it, now i just have every single plastic on the bike to fix lol
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Old 08-14-2008, 02:34 PM   #7
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Quote:
Originally Posted by SPHINX View Post
I have a little road rash on my left side and really would prefer to save those $400 or so that will cost me if I take the fairings to a professional. Where can I get the plastic body filler and all the other tools required for the job? also, is it straight forward enough for some one with no previous experience?
Take your time and yes. Hurry or become impatient and no.

If you've never done it before, be prepared for frustration!

Wally World has all the stuff you need (except the patience), can be found in the automotive section. You can find the 2 part epoxy there too, but again, for cracks, be prepared for it to crack again (not always, but most of the time). For cracks, plastic weld FTMFW!!!

It is very straight forward work if you follow the directions on the can and don't mix the mud too hot.

Scuff with 60-80 grit, fill (make it smooth so you don't have to use the cheese grater), sand with 220, fill again using a thin, smooth application (if needed, and it will be needed), sand with 400, prime with filler primer, sand with 600, and paint.

Must follow the directions for mud application, otherwise most first timers will get a balled up mess.


Here's the real deal too, whatever you do, very likely the job will not look nearly as good as someone like Tony can do. This is tough work to get right, and it takes a lot of time/ patience to do it to a professional level.

You may be surprised how inexpensive a repair and paint from Tony is.
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Old 08-14-2008, 02:34 PM   #8
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Quote:
Originally Posted by RojerLockless View Post
just very time consuming and labor intensive, but you can do it.

thanks thats what I thought I had to do and with a list of materials I'll be able to do it, now i just have every single plastic on the bike to fix lol
which one did you break?
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Old 08-14-2008, 02:35 PM   #9
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Old 08-14-2008, 02:36 PM   #10
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where would i get the correct plastic weld?
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Old 08-14-2008, 02:37 PM   #11
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Quote:
Originally Posted by RojerLockless View Post
just very time consuming and labor intensive, but you can do it.

thanks thats what I thought I had to do and with a list of materials I'll be able to do it, now i just have every single plastic on the bike to fix lol
Bummer! On the 1k?


Anybody hear what I hear? trrrrraaaack biiiiiiike

Huh? What's that? trrrrrraaaaaaaaaaack biiiiiiiiiiike


Must be the wind...

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Old 08-14-2008, 02:37 PM   #12
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found this in a link there too.. how to fix on aftermarket plastics that don't quite fit. like Azylums

http://www.sportrider.com/tech/146_9508_hand/index.html
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Old 08-14-2008, 02:39 PM   #13
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Quote:
Originally Posted by sbfuller View Post
which one did you break?
I didn't break any of my bikes, I got a new one for the GF and each plastic has one scrach or another.

this is gonna be fun i gota think what type of custom paint i want
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Old 08-14-2008, 02:39 PM   #14
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Old 08-14-2008, 02:40 PM   #15
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Quote:
Originally Posted by sbfuller View Post
where would i get the correct plastic weld?
It's an actual "welder" that uses compressed air and heat. They usually come with different rods for different plastics too.

Northern Tools has them, or you can get the real deal Snap-On brand!

I've used a $110 version of Northern Tools' plastic welder with good results.

Learn to use it well and your buddies will be beating down your door every time they need a repair. Make them bring you beer
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Old 08-14-2008, 02:40 PM   #16
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lol sorry I don't have a scrach on the Limited 08 Fireblade =p infact i can see it from my window right now =p
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Old 08-14-2008, 02:41 PM   #17
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Fuller you wanna bring ur busa over to my place? my garage has fans and a mini fridge and we can fix these bikes
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Old 08-14-2008, 02:41 PM   #18
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Old 08-14-2008, 02:42 PM   #19
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Quote:
Originally Posted by RojerLockless View Post
found this in a link there too.. how to fix on aftermarket plastics that don't quite fit. like Azylums

http://www.sportrider.com/tech/146_9508_hand/index.html
^^^^^^^^^^^ decent technique, used it before, not as good as welding and it will still crack.

I've heard all kinds of folks claim the 2 part epoxy systems work for their plastic crack repairs, but nobody has every been able to put their money where their mouth is, and either clammed up or admited that "yeah, it has cracks".
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Old 08-14-2008, 02:43 PM   #20
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I didn't break any of my bikes, I got a new one for the GF and each plastic has one scrach or another.

this is gonna be fun i gota think what type of custom paint i want
I think i'll be repainting the busa eventually... learn to paint it yourself. it's not that hard
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