best for repairing crack in lower fairing

[mike042]

i have a long crack half way across the long part of lower left fairing, whats the best stuff to use so it doesnt get any bigger???

[RDawson]

I repaired one by cutting a strip of ABS plastic sheet and mixed acetone with ABS scraps to make a “glue” to bond it to the back. Holding great. 

[etcswjoe]

I have used JB Weld plastic with success. 

[Marcarl]

I've used both of the aforementioned and also Plastifix. All seem to work. I think Pastifix is the easiest.

[saddlebum]

Plastifix is my preferred. Used it to rebuild my entire bike back in 2007 and have sworn by it since. Upper fairing on the left side I actually made up of two good halves splice together and no one was ever able to tell. Even held together when the bike fell of the work table 2 years ago, Don't ask 

You never need to use spot putty because it sands beautifully and you can continue to add as needed until you have a flawless surface. For extra strength you can  inlay fiberglass cloth, fiberglass drywall tape or some form of wire mesh (preferably stainless or aluminum). Aluminum is easier  to form. Body shops supply aluminum expanded mesh which works great.

[videoarizona]

I used fiberglass cloth and epoxy. My first step though is a soldering iron, ABS pieces and some labor. I melt the crack edges...tack weld them with heat. Add some melted ABS at the ends for stress relief. Then overlay fiberglass cloth with epoxy. I used epoxy over Plastifix only because I always have some around for the boat.