 Factory foam removal-how to? |
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| sixaddict |
 Jul 1 2022, 12:59 PM
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#1
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Senior Member  Group: Members Posts: 801 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States 
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A while back I had seen a post suggesting factory foam inside body panels could be dissolved using acetone.
Tried it without success. Anyone out there have any formula that works? This is in the hood of a 911 so not able to dig it out with tools. TIA |
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| mepstein |
Jul 1 2022, 02:02 PM
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#2
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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I was going to try gasket remover. It’s strong stuff.
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| sixaddict |
Jul 1 2022, 07:33 PM
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#3
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Senior Member Group: Members Posts: 801 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States
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Worth a try.
Thanks |
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| davep |
Jul 1 2022, 07:53 PM
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#4
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914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
You need to do a bit of research. Cured PU foam is a real bitch to dissolve, but may break down with intense UV light. We used to use Cellosolve to clean tools and equipment before the foam cured.
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| sixaddict |
Jul 2 2022, 09:23 AM
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#5
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Senior Member Group: Members Posts: 801 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States
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Thanks
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| worn |
Jul 2 2022, 09:46 AM
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#6
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can't remember Group: Members Posts: 3,155 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(sixaddict @ Jul 1 2022, 10:59 AM)  A while back I had seen a post suggesting factory foam inside body panels could be dissolved using acetone. Tried it without success. Anyone out there have any formula that works? This is in the hood of a 911 so not able to dig it out with tools. TIA If you look at my ell hole thread I show the piece from inside the rear corner above the tail light. Dissolving is going to be hard because the foam is coverd by thick rubber sealant, which is even more rust collecting. Once the sealer is removed the foam can sometimes be simply pulled out. It is difficult but I have had success welding different wire wheels to quarter inch rod and grinding away with a drill. The sealant softens with heat, so I us3d a torch in places. It can catch fire easily, but if confined, that isn’t too big a problem. Use ventilation. After a lot of hard work i have all the foam out. The foam in the sail is the hardest. |
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| bkrantz |
Jul 2 2022, 08:14 PM
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#7
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914 Guru Group: Members Posts: 7,762 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains
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I never found a solvent I was able and willing to work with that had much effect on the factory foam. I removed mine with LOTS of picking and scraping.
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| mb911 |
Jul 3 2022, 06:06 AM
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#8
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914 Guru Group: Members Posts: 6,850 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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This is what your looking at to get rid of.
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| ClayPerrine |
Jul 4 2022, 08:35 PM
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#9
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Life's been good to me so far..... Group: Admin Posts: 15,463 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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Over the years, I have used Berrymans B12 carb cleaner with varying results. Sometimes it dissolves it, sometimes it seems to be a little tougher. You have to get through the tar on the outside first, though.
Clay |
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