View Full Version : Bumper material>?
.Kevin.
05-10-2011, 01:47 AM
Does anyone know particularly what material our bumper is made of? Curious as to doing a self repair not sure if bondo will work so I was going to sodder on plastic to it of the same kind sand it down and repaint.
MickZEL
05-10-2011, 01:53 AM
We sealed them with hot air
Kaotic Lazagna
05-10-2011, 01:53 AM
I believe the bumper is just plastic.
.Kevin.
05-10-2011, 02:17 AM
We sealed them with hot air
What?
I believe the bumper is just plastic.
Straight plastic?
Any reccommended plastics for this?
I'm doing this as a last resort since I was told bondo wouldn't do shit.
MickZEL
05-10-2011, 03:09 AM
[QUOTE=.Kevin.;579264]What?
crack :iono:
MickZEL
05-10-2011, 03:13 AM
What?
crack :iono:
.Kevin.
05-10-2011, 04:01 AM
What do you mean hot air sealed it? You mean torch it with heat and melt it together?
.Kevin.
05-10-2011, 07:36 PM
Bondo fibreglass body filler is what I managed to find is this the correct one for this?
dingbat
05-10-2011, 08:19 PM
???? If it's ABS plastic, you may be able to fix it with ABS pipe cement. Find it in the plumbing section of the hardware store next to the PVC cement. Find an inconspicuous spot on the back side of the bumper, clean it off with some fine grit sand paper and put a drop of glue on. If you can't chip it off when it dries, it should do the trick.
.Kevin.
05-10-2011, 08:37 PM
???? If it's ABS plastic, you may be able to fix it with ABS pipe cement. Find it in the plumbing section of the hardware store next to the PVC cement. Find an inconspicuous spot on the back side of the bumper, clean it off with some fine grit sand paper and put a drop of glue on. If you can't chip it off when it dries, it should do the trick.
Is that stuff better than the bondo fibreglass repair kit? Apparently our bumper covers are normal plastic said kaotic?
dingbat
05-11-2011, 11:39 AM
Yeah but what's "normal plastic"? PETE, PVC, HDPE, ABS, UHMWPE, etc.?
I would suspect it's ABS, but I don't know for sure.
I believe Bondo and other body fillers are polyester resins or something of the like. It's very difficult to get them to stick to many plasics beyond a mechanical bond (forming in around scratches from rough sanding or making "plugs" through holes drilled in the plastic) which will eventually come apart on anything that flexes around much or expands and contracts with heat. The ABS cement will make a chemical bond.
Came across this website while looking to see if I could find what material the bumper is: http://faq.ninja250.org/wiki/Plastics_repair_with_ABS_cement
Of course, you'll still need to figure out if your bumper is ABS or not.
Good luck.
realize that bondo is a BRAND.
bondo sells body filler and fiberglass products. the body filler will not work as it is not structural, the fiberglass is.
the idea about pvc glue is a good one but I wouldn't put it on the front of the bumper as I don't know if it would accept the paint well. been a while since I messed with PVC.
dingbat
05-11-2011, 01:54 PM
realize that bondo is a BRAND.
bondo sells body filler and fiberglass products. the body filler will not work as it is not structural, the fiberglass is.
Correct, but he asked specifically about....
Bondo fibreglass body filler is what I managed to find is this the correct one for this?
And keep in mind that their fiberglass products are most likely going to be polyester resins, maybe some epoxy resins, both of which won't bond to many plastics like ABS without some sort of special process like corona flame treatment.
the idea about pvc glue is a good one but I wouldn't put it on the front of the bumper as I don't know if it would accept the paint well. been a while since I messed with PVC.
Not PVC glue. ABS cement. ABS cement is ABS plastic in a solvent which evaporates and leaves the ABS plastic behind. It will take paint just as well as the rest of the part if done properly.
And again, this is all assuming the part is ABS to begin with.
contraband831
05-11-2011, 03:37 PM
live with it for a while, slap a sticker on it that says "ouch", then save up and buy a new bumper or a front lip since it may cover that up..a self fix for most people is not a good idea especially with a crack like that..
mazilla
05-11-2011, 03:44 PM
They sell a two part plastic epoxy made for bumper repairs, I've used it(in several location on my Yaris) and so far so good. It's available at your local autoparts store(usually).
.Kevin.
05-11-2011, 04:47 PM
They sell a two part plastic epoxy made for bumper repairs, I've used it(in several location on my Yaris) and so far so good. It's available at your local autoparts store(usually).
Any idea of the name?
was doing some searching. I don't like being wrong (and I was, thanks dingbat) so here is an attempt at redemption
found a thread on benzworld that said to use jb weld. I don't have personal experience with it but I guess it makes sense. I would still do it on the back to try it out but it is simple enough.
http://www.benzworld.org/forums/w210-e-class/1393446-epoxy-repair-cracked-front-bumper.html
there again, take it for what it's worth
mazilla
05-11-2011, 05:17 PM
Any idea of the name?
I don't recall the exact brand, but it's one of these two part plunger types. Surface prep is especially important...And it's fine for a bandaid type fix IMO, it will be tough to make it invisible.
http://www.google.com/products/catalog?q=two+part+plastic+epoxy&nomo=1&hl=en&client=safari&output=html&cid=15061549728645752989#
.Kevin.
05-11-2011, 05:33 PM
Alright will return my bondo shit, and look for JB weld, where there is JB weld there should be other repair products will go for the better lookin one. I also already have sand paper and clear paint just need the can of my 1E7 from dupli color thanks guys will report back
mazilla
05-11-2011, 06:05 PM
The problem(in this application) with JB is how rigid it is, when that bumper flexes the JB will separate from the plastic. You need something specifically designed for plastic, so it will flex with the surrounding material. I'm tryin to find the exact epoxy I used to fix a two foot crack on the bottom of my current bumper, the best part was the applicator tip was spiraled, by the time te two part mix reached the bottom it was thoroughly mixed and ready to fill. On mine I backed the crack with boat hull repair epoxy(I'm still worried about it's rigidity) then filled the crack with the liquid epoxy. I've scraped that same spot at least a half dozen times since the repair and it hasn't budged...only time will tell.
.Kevin.
05-11-2011, 06:15 PM
The problem(in this application) with JB is how rigid it is, when that bumper flexes the JB will separate from the plastic. You need something specifically designed for plastic, so it will flex with the surrounding material. I'm tryin to find the exact epoxy I used to fix a two foot crack on the bottom of my current bumper, the best part was the applicator tip was spiraled, by the time te two part mix reached the bottom it was thoroughly mixed and ready to fill. On mine I backed the crack with boat hull repair epoxy(I'm still worried about it's rigidity) then filled the crack with the liquid epoxy.
Yeah I want to avoid it snapping again and possibly even taking more plastic with it this time, I hit snow alot here in winter even when I go through clear roads so I want somethingnthat will work.
All we need is a name, you can do it!@
mazilla
05-11-2011, 06:29 PM
http://ecx.images-amazon.com/images/I/51%2BqO6EJOjL._SL500_AA300_.jpg
Found it, the one I used(IIRC) said "made for plastic" but it was this brand and looked identical.
Not too bad for phone searching...If I was at home I would have found the info sooner.
.Kevin.
05-11-2011, 06:56 PM
Awesome I wll look around at all my hardware stores and auto stores for something like this.
Thanks man
AppleJacks716
05-11-2011, 08:05 PM
Does anyone know particularly what material our bumper is made of? Curious as to doing a self repair not sure if bondo will work so I was going to sodder on plastic to it of the same kind sand it down and repaint.
I'd take the bumper off, and use a screen mesh and epoxy behind the crack to brace it and form it back together. Then use a plastic filler on the front to make everything look better. Other ideas would be getting a front lip, that should cover it up, or just get a new bumper.
dingbat
05-11-2011, 10:46 PM
Anyone got an answer for what type of plastic it is yet?
.Kevin.
05-11-2011, 11:51 PM
Don't think we'll even know maybe if we check the manual
MickZEL
05-21-2011, 04:58 PM
http://www.bampera.ru/remont_plastika.htm
Check it and translate
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