Black plastic bumper: crack repair

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Fri 22 Sep 2006 20:50
Black plastic bumper: crack repair - mikem004
Any DIY options for repairing cracks in black plastic front bumpers?
N-reg Micra driven into a parking bollard!
Bumper is cracked but stable.
Are there such things as black filler materials available at Halfords etc.?

Thanks
Mike
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Fri 22 Sep 2006 20:55
Black plastic bumper: crack repair - bell boy
i weld them with an old soldering iron
a bit of stickaflex/black silicon will usually cover a smallish hole
if it wasnt split boiling water brings them back to shape (or a hot air gun)
if you are good you could repair the bumper fill and smooth with body filler and then spray the whole bumper with satin black paint.
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Sat 23 Sep 2006 14:42
Black plastic bumper: crack repair - mikem004
Thanks.
Could you give me more details on the soldering iron technique? Sounds like it could cause a mess in the wrong hands!

I also have considered buying some normal white/grey filler and mixing in some black ink/dye before applying.

Mike
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Sat 23 Sep 2006 14:57
Black plastic bumper: crack repair - bell boy
make sure the two joints are together and then cross stitch the molten plastic into the hole,ideally you have a bit of spare of a same type bumper and use this as a welding rod (watch the fumes) i used to use this technique with a hot air gun but its much more controlled with the soldering iron.
Ideally you need to weld both sides but ive just repaired a colour coded bumper the same way (one side only as its a pain to get off 'fiat') filled it with minimum body filler and then blown in the repair this saved me well over £100.
just take your time.........
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Sat 23 Sep 2006 20:49
Black plastic bumper: crack repair - mikem004
Thanks OM. I'll give this a try. Fortunately its an old car so the repair doesn't need to be up to pro standard.
What's the biggest crack that can be fixed using a soldering iron? Biggest crack on mine is getting on for 1/4 inch. Maybe I should do a rough fill on that one first...

In Halfords today I also saw some 2-part bumper repair filler stuff. But bog standard car filler would probably do as well.

Mike
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Sun 24 Sep 2006 12:53
Black plastic bumper: crack repair - steveo3002
halfords and such like should have a 2 part epoxy glue for repairing the crack, the filler is used to smooth the joins

you could grab any color glue they have , then dust some black plastic aerosol paint over the repair

or if you want black plastic glue...this is the stuff we use at the bodyshop

www.innotecworld.com/products.php?cat_id=7 innotec plastic repair system
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Thu 28 Sep 2006 21:10
Black plastic bumper: crack repair - wedgeallgone
Hi,plastic padding do a fuel tank repair filler which is black in colour works a treat on black bumpers.NIck
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