Type of plastic used to make a 1978 GS1000 tail piece.

[rustybronco]

It's a light gray to beige material that doesn't smear when you grind it. It also appears to be non-fibrous and sands finely.

My guess because of the age is that it's PVC.

Doesn't anyone know what the tail section of a 1978 GS1000 is made from, before I obtain a broken section and do further testing?

http://www.modernplastics.com/how_to_identify_plastics.htm

[Steve]

I would have thought ABS, along with everything else, evidently I am mistooken?

.

[rustybronco]

Steve, it very well could be ABS, or some sort of ABS blend. I'm really not certain at this point so I'd rather ask first before jumping in with both feet.

Found how to tell the difference between ABS and PVC

http://www.researchgate.net/post/Is_there_an_easy_cheap_way_to_distinguish_PVC_and_ABS

Gyorgy Banhegyi · Bay Zoltán Nonprofit Ltd. for Applied Research
Take a copper wire, heat it up and touch the plastic. Then take the copper wire with the plastic residue into a flame. In the case of PVC you should see green color in the flame because copper chlorides are relatively volatile under such conditions. You even don't need a spectrometer. This is a calssical method for detecting organic chlorine.
Nov 17, 2013


Edwin F Ullman · Independent
PVC is denser than ABS. Just immerse a piece of the plastic in a glass containing a solution of 2 tablespoons of salt in 8 ounces of water. If it stays on the bottom it is PVC. If it floats it is ABS.

[rudeman]

I think Steve is correct. I recall someone on the forum using acetone to repair a cracked tailpiece. I think it was SVSooke.

[SVSooke]

No I repaired the under seat trim,that was ABS.My tail piece was just fine.

[rustybronco]

Picture of material. (Primer on part is gray)

[rustybronco]

No I repaired the under seat trim,that was ABS.My tail piece was just fine.

I believe the seat trim and the tail piece are made out of the same material.
How did the repair hold up?

[SVSooke]

So far so good Dale.