Help/advice needed (splits and paint repair)

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taffnc30
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Re: Help/advice needed (splits and paint repair)

Post by taffnc30 » Wed May 01, 2013 11:54 am

I have found two good links that will give you the idea. The first is from 3M their process is spot on, the product is also top notch.

http://solutions.3m.co.uk/wps/portal/3M ... perRepair/

Next link is also good, between the two you should have a reasonably clear idea of how to get on.

http://www.saabce.com/Media/PDF/Plastic ... edures.pdf

Basic rules to remember......Clean! Take your time and be methodical! Drill the very end of any cracks! Clean! Use adhesion promotor! Clean!
The principle is you need good adhesion, for this you need a key (scuffed up area), problem is once you scratch plastic is releases oils which prevent adhesion hence you MUST use an adhesion promotor (this acctually seals in the oils but leaves the area keyed up), make the reapir surface area larger by veeing out (some prducts may differ) the crack and reinforce the panel on the back (either mesh impregnated with repair compound or a patch type reiforcer.
Good luck ,hope this helps and feel free to ask any further questions!

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jo
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Re: Help/advice needed (splits and paint repair)

Post by jo » Wed May 01, 2013 12:30 pm

krisztian_andre wrote:What's wrong with plastex?
:plus:
I'd try plastex first! I had a hole in my fairing where some retard had kicked it - was about 2" x 3" foot sized - and I repaired that with plastex and was brilliant. You can't tell it's been repaired. It's perfect for cracks and very strong.
Don't over-complicate this!
I've just got some to repair my road fairings with and have every faith in it. You can get it off ebay for £20.

taffnc30
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Re: Help/advice needed (splits and paint repair)

Post by taffnc30 » Wed May 01, 2013 5:12 pm

"Never used plastex, but having just looked into it seems ok. There are many plastic repair compounds available and they all do a similar job, THE MAIN thing is the repair process"

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benny
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Re: Help/advice needed (splits and paint repair)

Post by benny » Wed May 01, 2013 8:23 pm

Thanks for all the help, think I'm going to leave it for a bit for now, then when I feel ready I will get some quotes for how much it will cost to reprint. Also quotes for other people to repair it rather than DIY. I don't mind it's condition right now too much, but I also think when I'm thinking of repairing the daring ill also be maybe ready for a new fairing anyway (silhouette etc.) as if I'm going to pay for reprinting ill probably want it how I want it. Think ill do this all when my restriction is up.
So ill update this thread in 20 months!
Once again thanks for all the help I'm sure this will be of use to someone else and not just me
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Re: Help/advice needed (splits and paint repair)

Post by benny » Fri May 03, 2013 11:09 pm

http://www.motorcyclenews.com/MCN/News/ ... e-sampler/
Page 12-13 has info on plastic welding and lug gluing.
BRS Racing for up to date bike build and race results.
TT Zero for the electric Superbike build.
DM104 for the road race team.

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benny
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Re: Help/advice needed (splits and paint repair)

Post by benny » Sun May 26, 2013 5:32 pm

Does this look ok?:
http://www.halfords.com/webapp/wcs/stor ... &langId=-1
Going to try a go tomorrow so need something j can buy in the shop

EDIT: Read next post, i decided to use plastex and 3M products instead.
Last edited by benny on Sun May 26, 2013 7:31 pm, edited 1 time in total.
BRS Racing for up to date bike build and race results.
TT Zero for the electric Superbike build.
DM104 for the road race team.

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benny
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Re: Help/advice needed (splits and paint repair)

Post by benny » Sun May 26, 2013 7:23 pm

Just ordered some plastex, should be here wednesday.
Plan of attack:
(On "spare" panels first)
Drill 6mm hole at end of crack,
Clean entire area with Wet+Dry to remove paint,
Grind V channel along crack,
Apply adhesion promoter (3M polyolefin adhesion promoter)
Apply Repair patch to rear (3M plastic repair patch)
apply plastex,
Clean (sand down)
BRS Racing for up to date bike build and race results.
TT Zero for the electric Superbike build.
DM104 for the road race team.

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Re: Help/advice needed (splits and paint repair)

Post by NGneer » Sun May 26, 2013 10:14 pm

I did post up a thread waaaay back on the old forum about my rebuild of a set of Crash damaged Panels using Plastech (as was) Plastex now I believe. I cannot find the link to the original thread but still have some of the photos in my photobucket stash…

My pride and joy…as was :grin:
Image

And following an unplanned shortcut through a Lincolnshire hedge… :(
Image Image

My panels were after-market anyway and FUBAR after the off so I managed to get a set of (also crash damaged) OEM fairings off another forum member on here (anyone remember Billy Bilboa?)
Image

Some of these just need a lot of rubbing down and some filler where they had tarmac grazes..
Image

But a lot of the fairings were earth cracked or even had bits missing…
Image Image Image

Having heard good things about Plastech I bought a bottle and set to work. Now the secret here (or so I found) was to give the stuff enough surface area to work with. By this if you have a crack you are trying to fix you cut/grind the crack into a ‘V’ groove (as per the instructions) so there is more surface area for the plastech to bond with – which it does very well. NB – a Dremmel is a top tool for this…
Image Image
Image
Holes for things like the mirror stays can just be filled in for ease of application and then carefully re-drilled afterwards..
Image

Even a jigsaw of broken (or even missing) bits of plastic can be rebuilt with some patience.
Image

Once you have ‘cast’ the new Plastic you just rub it back down and final shape it with sand paper / Wet and dry and with some patience you can really get back to the original shape of the OEM panel. Things like the lugs etc on the inside that often broken or missing can also be rebuilt providing you with a full set of resurrected OEM panels…
Image Image Image

Once rebuilt and extensivley road tested to see how they would hold up to the real world, I was seriously impressed with how good these repairs were…and in due course these very same ‘repaired’ panels got some paint lovin’ and became No1..which are still going strong today, several years later :grin:
Image

So if the current stuff is anything like the stuff back then, then 'Yes' you can get a very good quality fix for your broken plastics, but you will probably need to plan on respraying the panels afterwards if you are going to do a 'proper job' as you really do need to cut in, sand down etc :peace:

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Re: Help/advice needed (splits and paint repair)

Post by benny » Sun May 26, 2013 10:18 pm

I've got some spare OEM panels that I'm going to repair before doing my RWB ones. But I think I'll plastex the internal lugs etc.
Thanks for the Reply, great photos.
BRS Racing for up to date bike build and race results.
TT Zero for the electric Superbike build.
DM104 for the road race team.

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