Repairing Cracked Bumpers

[sierraman]

The Mondeo has a fairly minor crack in the bumper. I've drilled a few holes at the base of the cracks to stop them spreading. Then I made a groove where the crack followed. The finer cracks I plan to solder. My question is where the crack is more serious am I better off doing a repair from the back with fibreglass then filling it, or should I use some JB Plasticweld and do it that way.

 

Some might say purchase a pattern bumper for £45. It's not quite that simple though as I'd need several cans of paint to spray it, then several cans of lacquer so it would become an expensive repair...

[andy18s]

Really? You're asking on here how to repair cracked Mondeo bumpers?

Oh dear.........

[steveo3002]

rough up the back side of it and use 2 part bumper glue and mesh to reimforce it   , if youre keen you can check the back of the bumper for what its made of and make sure th glue is compatible

[Pillock]

I'd use a plastic repair like JB, or even try some hobby glue that melts and reforms the existing plastic. You want the repaired bit to be plastic, not filler. No matter how strong your fibreglassing was, filler is just going to fall out the first time the bumper flexes by a fraction of a mil

[steveo3002]

http://www.ebay.co.uk/itm/FULL-CAR-BUMPER-PLASTIC-Repair-Kit-broken-split-cracked-adhesive-trim-lugs-/361282297847?hash=item541e1a5ff7:g:dHcAAOxyRhBSz-YC

 

like so...could form a bit of ally or steel with some holes in to steady it too

[sierraman]

I'll order some JB Weld then. Wanted to rectify it whilst it was a minor problem. I've a feeling if I left it over time it would get worse. I'll not go down the gaffer tape route...

[beko1987]

Isn't there only one accepted way to repair Mondeo bumpers?

[fordperv]

Really? You're asking on here how to repair cracked Mondeo bumpers?

Oh dear.........

I thought ford sent them out with a roll of gaffer tape in the spare wheel well for when the bumpers cracked

[Asimo]

Cable ties to stitch across the crack, plenty of Gripfill.

[beko1987]

I thought ford sent them out with a roll of gaffer tape in the spare wheel well for when the bumpers cracked

Body coloured?

[alf892]

Looks like the sort of damage where it looks it has had a good whack and then sprung back on impact .......leaving what looks like minor damage.

 

There used to be a bloke on here who would have told you it's fucked....

[sierraman]

I'll give it a go. If it's one of those repairs that costs a fiver or so plus a bit of time I'm happy to give it a go with the JB Weld stuff. Do you just squeeze it into the gaps?

[Uncle Jimmy]

Never had much luck with the Isopon fibreglass kits; messy and the fibreglass/resin mix never seemed to want to stick very well to anything else.

If I was to be doing a tidy job now I reckon I'd look at West System epoxy and fibreglass strands or a stainless mesh.

[Honey Badger]

Fibreglass is probably too stiff for a lasting repair and doesn't stick well to plastic, it relies on the styrene to solvate the surface for a good bond and sometimes it just doesn't work, ive seen panels just flick off some substrates at work with the flick of a knife.

 

I'd use a good MMA plastic bonding adhesive and some plastic strips of a similar material to stitch across the crack on the back of the bumper then fill with a flexible filler in the crack from the front.

 

if it's a hairline crack then a fat bead of adhesive spread over the back of it and feathered out 5mm per side would be enough to bond it, dont put too much on though, it gets fecking hot when it goes off.

 

Whatever you use make sure you degrease and clean everything with Acetone to get the best adhesion.

[sierraman]

I'm going to make a brace up from some builders band to hold it in place with a few self tappers while I apply the JB Weld stuff. Then when it's set remove it.

[fordperv]

Body coloured?

Only on silver, black and white cars

[Vince70]

I had a really bad crack on the bumper of my car a couple of years back and got it repaired and painted and the guy told me that he just glued it together but what with I don't know but it's never gone again.

 

But I glued the broken fog lamp holder back together with a two pack epoxy resin from the poundshop and it worked a treat and looks like it's made of a similar material plus it needs a lot of force to clip it back in place afterwards and held up so it's worth a go for a quid.

 

So I would give it a go with soldering iron and a tube of cheap epoxy resin.