PUR GF 20
PUR GF 20
(OP)
Hello, I apologize if this is posted in the wrong forum. I see this is for engineers, etc. I am not an engineer. I am in the process of attempting to repair a plastic panel on my wife's car. I'm buying a "plastic-welding" machine, but in order to use it properly I must identify the type of plastic.
It is: PUR GF 15. I know what PUR is (Polyurethane Resin), but don't understand, nor can I find any info anywhere, on the GF 15 part. I have read that not all PUR can be welded, can anyone help? Thanks, and sorry if this is the wrong place to ask. I don't know where else to go.
It is: PUR GF 15. I know what PUR is (Polyurethane Resin), but don't understand, nor can I find any info anywhere, on the GF 15 part. I have read that not all PUR can be welded, can anyone help? Thanks, and sorry if this is the wrong place to ask. I don't know where else to go.





RE: PUR GF 20
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: PUR GF 20
RE: PUR GF 20
PU has 2 types, thermoplastic and thermoset. Only thermoplastic types can be welded with heat. A simple test is to heat a small piece of the plastic and see if it melts first or just degrades. Take care as degraded PUR produces cyanide gas.
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: PUR GF 20
RE: PUR GF 20
Both types will produce Cyanide if degraded, so avoid smelling fumes from either type when heating them.
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.