Cracked FG - adhesive choice?
Discussion
A good quality bonding paste is what you need but will be tricky to get into crack. It’s hard to see from the picture but you may be able to open the crack up a bit with a small wedge run a bit of sand paper between the cracks give it a good clean with acetone and use something like a cocktail stick to get enough in to bond it then a couple of clamps to hold it together for a few hours.
https://www.ecfibreglasssupplies.co.uk/product/cry...
https://www.ecfibreglasssupplies.co.uk/product/cry...
The most likely reason for this happening, is that at some stage, it has been jacked up under neath the B post and with the door closed.
On No account allow anyone to jack the car up here ! The chassis flexes alarmingly here and the load is spread into the door latch. In a hurry one day ( and dressed up and not wishing to lay under on the flloor at the rear, to get the jack under the main chassis rail ) a few years ago, i jacked my car up here, with the little scissor jack, to repair a puncture, when suddenly, there was a Very loud Bang, which was the outer and inner door skins bursting apart.
I had a body work pal do a quick repair on it, but as soon as the the door was closed a couple of times, it went again.
He said the only way to repair it, was by taking the ruddy door off.
Il post a photo of it later.
On No account allow anyone to jack the car up here ! The chassis flexes alarmingly here and the load is spread into the door latch. In a hurry one day ( and dressed up and not wishing to lay under on the flloor at the rear, to get the jack under the main chassis rail ) a few years ago, i jacked my car up here, with the little scissor jack, to repair a puncture, when suddenly, there was a Very loud Bang, which was the outer and inner door skins bursting apart.
I had a body work pal do a quick repair on it, but as soon as the the door was closed a couple of times, it went again.
He said the only way to repair it, was by taking the ruddy door off.
Il post a photo of it later.
chris52 said:
A good quality bonding paste is what you need but will be tricky to get into crack. It’s hard to see from the picture but you may be able to open the crack up a bit with a small wedge run a bit of sand paper between the cracks give it a good clean with acetone and use something like a cocktail stick to get enough in to bond it then a couple of clamps to hold it together for a few hours.
https://www.ecfibreglasssupplies.co.uk/product/cry...
Cheers. I can prise the crack open, and it closes neatly.https://www.ecfibreglasssupplies.co.uk/product/cry...
I parked in Horrisons and came back to find the alarm had gone off. Next day (yesterday) I noticed the damage. On inspection, it's exactly what you'd expect to happen if someone tried to pull open the locked door.
I'll order that adhesive, drill two small holes, one at each end. apply the adhesive, and clamp. I'll see how that goes. If it doesnt' hold then it's door off and over to a specialist.
I'd really like to be able to mend it. Low mileage car with original paint. At least it's on the inside edge!
Primarily you need strength across he crack. If it were me......drill each end of the crack gently so you dont get any splintering. Then grind the crack line out and get a piece of well soaked in resin fibreglass in behind the crack then let it semi set and get resin into the front of the crack to fill it. Let set sand finish and prime and paint
Had a very similar bit of damage some years back, tried industrial specialist potions to no avail, ended up getting some fibre glass from a TVR body specialist who also gave me some of the fixing liquid, now the thing was I needed a container for this and all I had was a pot containing a small amount of touch up paint. The later advantage being that when I did the repair and mixed it all together it became car coloured and no need to paint after so worth considering. Good luck.
5.0ltr said:
Had a very similar bit of damage some years back, tried industrial specialist potions to no avail, ended up getting some fibre glass from a TVR body specialist who also gave me some of the fixing liquid, now the thing was I needed a container for this and all I had was a pot containing a small amount of touch up paint. The later advantage being that when I did the repair and mixed it all together it became car coloured and no need to paint after so worth considering. Good luck.
When you put the fibreglass matting on the damage, didn't it end up looking rough?I'm thinking:
Tiny hole each end
couple of layers of FG behind (I've ordered some FG tape)
Epoxy also in crack.
Squeeze/clamp closed, make sure rear FG is smoothed out.
Then I'll have a very slight seam of the crack that I can gently sand and touch up.
RogerDodger said:
5.0ltr said:
Had a very similar bit of damage some years back, tried industrial specialist potions to no avail, ended up getting some fibre glass from a TVR body specialist who also gave me some of the fixing liquid, now the thing was I needed a container for this and all I had was a pot containing a small amount of touch up paint. The later advantage being that when I did the repair and mixed it all together it became car coloured and no need to paint after so worth considering. Good luck.
When you put the fibreglass matting on the damage, didn't it end up looking rough?I'm thinking:
Tiny hole each end
couple of layers of FG behind (I've ordered some FG tape)
Epoxy also in crack.
Squeeze/clamp closed, make sure rear FG is smoothed out.
Then I'll have a very slight seam of the crack that I can gently sand and touch up.
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