Bonnet clips

[seanieboy]

Anyone know how to fix the bonnet clips attached to the bonnet ?
One garage had my car and must of yanked the bonnet up ! And now another garage has done the same on the other side GGGRrrrrrrrrr, so now both sides are broken off ! They are obviously built in to the fibreglass bonnet, what's the best way to get them back on?

[FarmyardPants]

Get some glass fibre compound (Isopon P40) and stick them back on . That stuff sets like rock. You will have to clean up the surfaces first to give a good key.

[tofts]

I would recommend against using glass fibre to stick them back on, as you will have thesame problem. Glass sticks to glass really well when wet, but not so when dry and won't form a good bond, as the bonnet flexes and as the new glass is not part of the original structure, it will crack the bond and fall off.

There is a product called Skiaflex, that is used in marine application to stick Hulls to keels etc. using the Sika 292i will probably mean the glass fibre would tear itself apart before the bond failed, its very good and will remain flexible to absorb vibration. The Sika 291 is the same, but can (probably) be separated later, but this is unimportant for your application.

J

[FarmyardPants]

Fair point, I've reinforced mine with P40 but for a new join to the existing GRP, it may well separate at the bond. The original has 'tongues' of GRP extending from the bonnet, which the U-shaped metal pieces clamp onto. I would be tempted to bond T-shaped metal brackets to the bonnet, to give a good surface area for adhesion, and attach the metal U pieces to the brackets.

[seanieboy]

Thanks guys for your replays! Sorry for the delay, have be away.
Will give it a go cheers.

[seanieboy]

Just looked up Skiaflex 291, a type of silicon is this what you are saying to try ?

[Byker28i]

This stuff:
http://www.sealantsandtoolsdirect.co.uk/manufactur...

I gave up with my broken fibreglass bits and made new metal brackets which were bonded to the bonnet

[Tanguero]

seanieboy said:

Just looked up Skiaflex 291, a type of silicon is this what you are saying to try ?

Sikaflex 291 is not a type of silicone, it is a polyurethane adhesive and is the best stuff for the job.

[Twinkam]

Tanguero said:

Sikaflex 291 is not a type of silicone, it is a polyurethane adhesive and is the best stuff for the job.

Yeah that. It's the same stuff that entire car panels are bonded on with nowadays.

[Incognegro]

Byker28i said:

This stuff:
http://www.sealantsandtoolsdirect.co.uk/manufactur...

I gave up with my broken fibreglass bits and made new metal brackets which were bonded to the bonnet

Can you post a pic of your solution on the car mate, I have one scuttle clip that was broken and a makeshift repair done before I was the owner. Not bad but OCD tells me its not quite right.

[Treehead3000]

I would say using a polymer would do it better than a fibreglass just because it becomes a little brittle.

We buy something called www.supa-fix.com from Euro car parts or Halfords and the stuff they do it really tough!

Good Luck!