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1Back to top Go down   Integral case material? Empty Integral case material? on Tue Sep 03, 2013 4:29 am

Doohan

Doohan
active member
active member
A have a 1985 K100RS with integral cases. Does anybody know the plast type of theese? It's the stock integral case, and I can't seem to find the type? ABS, PE or whatever it is?

There's a crack I need to fix, and in order to do it right, I need to know the type of plastic.

    

2Back to top Go down   Integral case material? Empty integral case material on Fri Sep 06, 2013 11:57 pm

Dale S

Dale S
Silver member
Silver member
I remember reading somewhere that the inner case is molded from
High Density Polethylene (HDPE), and does not respond well to
solvent bonding etc. It must be plastic welded.
On the other hand the outers are made from Acrylonitrile Butadiene
Styrene (ABS).
I aslo have a crack on one of the inners and will be employing the welding technique to repair it.
Good luck!
_________________________________________________________________________________

http://www.ibmwr.org/ktech/saddlebag-repair.shtml :
By Tracy DesLaurier
September 1995
Regarding plastic welding/repairs to your bike parts:

K-bike bags are made from two different types of plastic - the inner sides High Density Polyethylene (HDPE), and the outers Acrylonitrile Butadiene Styrene (ABS). Don't try to repair them using the same materials. HDPE needs to be welded by using a device similar to a hair dryer, but it provides a much hotter and more directed source of heat. The heat gun may force air through it while warming up or cooling down, but it is imperative that the air supply be switched to nitrogen before attempting the weld or it will not stick properly.

The ABS side can be repaired using a "bodied solvent", but this type of repair is probably suitable only for very small holes, or to reinforce an area with another piece of ABS stuck to its backside. ABS can also be hot air welded, and nitrogen is not absolutely required, but better results are achieved by using it.

Three years ago I had a bag fall off on me and repaired it myself using these techniques at my dad's plastic business. The bag is holding up 100%. BTW, for repairs to fairings, do not use these techniques, as they are primarily fibreglass. Use conventional fibreglass repair techniques, but substitute epoxy resin for polyester resin on major repairs.



Last edited by Crazy Frog on Sat Sep 07, 2013 4:51 am; edited 3 times in total (Reason for editing : link)

    

3Back to top Go down   Integral case material? Empty Re: Integral case material? on Sat Sep 07, 2013 3:52 am

charlie99

charlie99
VIP
VIP
good find dale Integral case material? 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIntegral case material? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

4Back to top Go down   Integral case material? Empty Re: Integral case material? on Sat Sep 07, 2013 4:42 am

Doohan

Doohan
active member
active member
Awesome, thanks a lot!!!

    

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