View Full Version : Help Plastic Welding 3rd Gen Bumpers
EZ Boy
18-02-2007, 09:52 AM
Hi All,
Need to do some repairs to my rear bumper and reshape my front to allow airflow to this dirty big FMIC thingo so where can I source the welding rods for the Magna 3rd Gen bumpers??? I've tried using a strip of bumper as filler but it wont weld for quid.
What about some bumper specific bogs? Can I reshape the front bar with it? Any brands and indicative material pricing would be a great help.
Thanks in waiting. :cool:
magnamechanic
18-02-2007, 08:01 PM
go to the nearest dealer ship that sells 2nd hand cars they usaly have a leather and vinal repaireres that come and fix any dammaged plastic pannels ask for there number im sure if you ask they would point you in the right direction. ive seen some realy good repairs from these guys
Asylum
18-02-2007, 08:35 PM
when the bodyshop did my rear bumper cut-out, he said the differences between injection moulded and polyurothane (i think thats the different 2 plastics) made them pretty much impossible to weld together, so you need to match properly.
apparently he moulded the exhaust cut-out with a bog type stuff, cut out a section on the other side and welded the new moulding in, then lined the inside with a new piece of plastic (to get the return) so theoretically, any shape you can make with MDF or whatever, can be copied with the bog and then welded in.
DNO_007
19-02-2007, 01:03 PM
I am Toolmaker so i make injection moulds, the plastic use on our bumpers can be welded its just that its really hard,u can sonic weld it, but thats genrally used with flat surfaces for some thing as big as your bumper i would reconmend going to a bumper repairer, it would be a lot easier.
heres jus alittle bit on types of plastics Any plastic that is injected moulded is usually a thermoplastic, which mean you can re heat it without it burning n reshape it, then theres therosets which are usually comperssion moulded and once they set there set, if u try n heat them to reshape they just burn n go black, there generally used where heat will be a problem.
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