Wildgoose Chase Moto Guzzi

General Category => General Discussion => Topic started by: DAMMAG on June 23, 2021, 03:58:35 PM

Title: Le Mans 3 plastic type
Post by: DAMMAG on June 23, 2021, 03:58:35 PM
Hi. Quick question.

I want to do some plastic welding on one of my LM3 side covers. Does anyone know what type of plastic they are?

Thanks,

Damian.
Title: Re: Le Mans 3 plastic type
Post by: RinkRat II on June 23, 2021, 07:08:07 PM

          If your lucky and it's not too old, it should have a symbol somewhere on the inside with an identifying number. Also the manufacturer, like Acerbis.
                     
(https://i.ibb.co/K9r7C01/Plastic-Identification-Codes-Style-Mag-300x213.jpg) (https://ibb.co/K9r7C01)


         Hope this helps.
         Paul B :boozing:
Title: Re: Le Mans 3 plastic type
Post by: averb on June 23, 2021, 09:18:38 PM
Unfortunately those logos weren't introduced until the late 80s so if the side covers are original parts they're 5-6 years too early.
I would guess that the covers are ABS or a PC/ABS blend but thats all it is - a guess.
Not much help I'm afraid but I'm sure someone with actual knowledge will chime in soon
Steve
Title: Re: Le Mans 3 plastic type
Post by: bmc5733946 on June 24, 2021, 05:07:01 AM
If it is ABS it will be soluable in acetone. Pick a small spot and see if acetone affects it by softening it,  just a drop will do. Acetone evaporates quickly so little if any damage will occur.

Brian
Title: Re: Le Mans 3 plastic type
Post by: Zenermaniac on June 24, 2021, 07:56:42 AM
Iíve used ABS plastic pipe cement from the plumbing store to repair motorcycle plastics. It melts the surfaces of the plastic together to create a strong bond.
Title: Re: Le Mans 3 plastic type
Post by: bigbikerrick on June 24, 2021, 12:13:35 PM
they are ABS. I have plastic welded on some using ABS rod,and it came out very well.
Rick.
Title: Re: Le Mans 3 plastic type
Post by: DAMMAG on June 24, 2021, 03:46:50 PM
Thanks guy's.

I will treat them as being ABS and give plastic welding a go.
Title: Re: Le Mans 3 plastic type
Post by: bmc5733946 on June 24, 2021, 08:51:49 PM
If they are ABS you can buy thin sheets of ABS (Amazon here) and cut small chips to dissolve in acetone and make a very thin to very thick glue/filler. I have done this to repair a Rifle fairing that had come apart. Good luck!

Brian