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 > Removing built up sealant?

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DinTulsa

Tulsa

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Posted: 11/28/21 05:10am Link  |  Quote  |  Print  |  Notify Moderator

My current Rv is 7 years old now and I have added sealant to the seams over the years. I’m looking to remove a lot of the built of sealant next spring and lay down a new bead. Any recommendations? It’s a fiberglass rv and the sealant I’m taking about is on the vertical seams on the front cap.

Thanks

WNYBob

Tonawanda, NY

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Posted: 11/28/21 06:59am Link  |  Quote  |  Print  |  Notify Moderator

I used an oscillating tool with a blade on it. Be careful not to scratch the fiberglas with to much pressure. Then finish with a plastic putty knife and solvent.
Take your time.
Good luck.

WNYBob

Lwiddis

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Posted: 11/28/21 08:00am Link  |  Quote  |  Print  |  Notify Moderator

Warming up the sealant with a hairdryer eases removal. Not your wife’s! Ten bucks on Amazon.


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NamMedevac 70

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Posted: 11/28/21 09:18am Link  |  Quote  |  Print  |  Notify Moderator

I have had some success using plastic razor blades and DAP caulk remover in a tube. Use the blades before and after using the DAP. Use tape to protect adjacent areas from DAP/old sealant goo with towels handy. Also done this with only blades and no DAP. Some say mineral spirits will work also. Good luck

ken56

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Posted: 11/28/21 02:55pm Link  |  Quote  |  Print  |  Notify Moderator

Use the heat method....with the HAIR dryer not a heat gun.

* This post was edited 11/28/21 03:13pm by ken56 *

mobilefleet

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Posted: 11/30/21 07:26pm Link  |  Quote  |  Print  |  Notify Moderator

a good multi tool is best. Doing it by hand with a scraper or putty knife takes forever. I have a makita cordless multi tool and would never go back. Lay down some frogtape when you are ready for the new sealant. Makes cleanup and clean lines much easier/less sloppy

kellem

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Posted: 12/02/21 03:28pm Link  |  Quote  |  Print  |  Notify Moderator

Actually own a heat gun with a low setting that does the trick.
I also tape off before reapplying Dicor.

Vintage465

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Posted: 12/05/21 08:12am Link  |  Quote  |  Print  |  Notify Moderator

kellem wrote:

Actually own a heat gun with a low setting that does the trick.
I also tape off before reapplying Dicor.


I also use a heat gun on a "carefull setting". That means a low setting and keep the gun moving back and forth. I also took an 1-1/2" putty knife and rounded the corners substantially and the "edge" and use that to scrape up the old material. Works fine, I can clean it right down to the rubber and not do any damage to the rubber....or should I say "noticable damage" cause we really don't know what goes on when applying heat to anything. But I beleive there is a better chance of cutting or tearing the roof without heat. Dont be impatient or in a hurry


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EricCO

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Posted: 12/06/21 11:33am Link  |  Quote  |  Print  |  Notify Moderator

I've had good luck using these scrapers along with a heat gun.


https://www.harborfreight.com/automotive........-piece-nonmarring-scraper-set-95832.html


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larry cad

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Posted: 12/06/21 03:01pm Link  |  Quote  |  Print  |  Notify Moderator

EricCO wrote:

I've had good luck using these scrapers along with a heat gun.


https://www.harborfreight.com/automotive........-piece-nonmarring-scraper-set-95832.html


Gotta get me some of them!


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