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Bonnet Insulation
Posted: Mon Aug 01, 2022 3:49 pm
by mickes
I am in the process of replacing my bonnet Insulation but finding it almost impossible to get the old adhesive off of the underside of the bonnet. So far I have tried soaking with water, panel wipe, alcohol, meths and paraffin but none have worked, obviously can't use thinners.
Has anyone done this job before and had more success. I don't really want to stick the new insulation over the old adhesive.
Re: Bonnet Insulation
Posted: Mon Aug 01, 2022 4:18 pm
by martauto
mickes wrote: ↑Mon Aug 01, 2022 3:49 pm
I am in the process of replacing my bonnet Insulation but finding it almost impossible to get the old adhesive off of the underside of the bonnet. So far I have tried soaking with water, panel wipe, alcohol, meths and paraffin but none have worked, obviously can't use thinners.
Has anyone done this job before and had more success. I don't really want to stick the new insulation over the old adhesive.
There are more than one way to do this but I used WD40, Let it soak a bit and it will come away with a bit of help.
Yes it did work !!
Sorry for this..............cover your engine bay first lol.
Mart.
Re: Bonnet Insulation
Posted: Mon Aug 01, 2022 5:01 pm
by Corasdad
Caramel wheel might work
Re: Bonnet Insulation
Posted: Mon Aug 01, 2022 6:15 pm
by Cloggy Saint
Save yourself a lot of effort and don't bother, just remove the dry flaky foam. I stuck new foam on old adhesive about 12 years ago and it's still holding firm.
Re: Bonnet Insulation
Posted: Mon Aug 01, 2022 6:49 pm
by BenHar
Brake cleaner has been recommended on here in the past.
Ben
Re: Bonnet Insulation
Posted: Mon Aug 01, 2022 8:58 pm
by Dlb26
I've recently done mine and found isopropyl/isopropanol alcohol to work really well with a foam eater used to desolve expanding foam.
See midway and after photos. You can see the two side panels are back to painted metal.
Re: Bonnet Insulation
Posted: Tue Aug 02, 2022 1:01 am
by twright
I agree with the poster above that says you don't have to get it ALL off. I used sandpaper to remove the big lumpy stuff and didn't touch the paint.
The new insulation stuck on just fine.
Re: Bonnet Insulation
Posted: Tue Aug 02, 2022 2:25 pm
by Corasdad
Looks good
Re: Bonnet Insulation
Posted: Wed Aug 03, 2022 10:37 pm
by BristolE30
Cloggy Saint wrote: ↑Mon Aug 01, 2022 6:15 pm
Save yourself a lot of effort and don't bother, just remove the dry flaky foam. I stuck new foam on old adhesive about 12 years ago and it's still holding firm.
Agreed, don’t bother removing it
Re: Bonnet Insulation
Posted: Thu Aug 04, 2022 11:59 am
by Contours
If you want to get it off, use white spirit. It will just disintegrate and fall off. Makes it a lot easier to fit the new foam
Re: Bonnet Insulation
Posted: Thu Aug 04, 2022 8:38 pm
by chatstar123
I second that. White spirit got all the adhesive of really easily