RTV and silicone caulk
 

RTV and silicone caulk

Started by Mike in GA, May 02, 2014, 11:09:21 AM

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Mike in GA

Need to remove excess caulk prior to reinstalling the beltline on my MCI. Perhaps a solvent that won't harm the paint?
Mike in GA
Past President, Southeast Bus Nuts. Busin' for almost 20 years in a 1985 MC 96a3 with DD 8v92 and a 5 speed Allison c/r.

Mike in GA

Tried brake cleaner, but no effect. Perhaps lacquer thinner?  The paint I do not want to ruin is enamel.
Mike in GA
Past President, Southeast Bus Nuts. Busin' for almost 20 years in a 1985 MC 96a3 with DD 8v92 and a 5 speed Allison c/r.

Utahclaimjumper

 MEK will work wonders as long as you don't spend too much time on the paint, also, don't use silicone anyplace you wish to ever stick anything else. Silicone contains an oil that will prohibit any thing sticking to that spot in the future.>>>Dan
Utclmjmpr  (rufcmpn)
EX 4106 (presently SOB)
Cedar City, Ut.
72 VW Baja towed

luvrbus

Acetone is about the only way I found to remove silicone it should be against the law to make that stuff most owners think if a little is good a bunch is better,acetone will not hurt clear coat or paint like the Imron cheap paint it will work as a stripper I know I found that out ::)
Life is short drink the good wine first

Jeremy

Never used it myself but you can buy stuff specifically to remove silicone:



Everbuild Silicone Eater : - is a revolutionary new chemical that removes all types of silicone sealant by digesting and breaking up the sealant. Silicone Eater is harmless to most surrounding surfaces.

I'd be pretty confident that it wouldn't hurt your paint, but as I say, I've never used it myself

Jeremy
A shameless plug for my business - visit www.magazineexchange.co.uk for back issue magazines - thousands of titles covering cars, motorbikes, aircraft, railways, boats, modelling etc. You'll find lots of interest, although not much covering American buses sadly.

luvrbus

25 bucks to remove a 6 dollar tube of silicone see why I don't care for silicone  ::)
Life is short drink the good wine first

chessie4905

   How about one of those wheels that 3m makes to remove decal, residue, etc. without paint damage.
GMC h8h 649#028 (4905)
Pennsylvania-central

luvrbus

The 3M silicone wheels will strip the paint if not a acrylic paint BTDT 
Life is short drink the good wine first

junkman42

Try gasoline, it will turn silicone into a cottage cheese like substance!  John L

Dave5Cs

Putty knife slowly is the only thing I have found that if you are slow and careful not to scrape the paint.

Dave
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

PacoExpress


Kitt

DSR-5 works, but it is pricey


'77 Eagle Model 05
1977 Eagle model 05
8v71, Allison HT740D

belfert

I had to remove silicone caulk to replace the shower doors on a fiberglass shower enclosure a few months back.  I tried a 3M caulk remover from Menards, but it didn't touch the silicone.  Folks on the Internet suggested WD-40 which softened the caulk somewhat.  My mother helped me out and spent hours removing the old caulk with an old credit card.  I don't know if WD-40 would hurt your paint or not.  Any scratches to the fiberglass got covered with the tracks for the new door and the new silicone.
Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN

Mike in GA

Thanks for all the suggestions.  Seems that mineral spirits did the best job of softening the silicone, followed by a plastic scraper, then more mineral spirits, then a plastic mesh scrubber. Lots of elbow grease, and finally, clean!
Mike in GA
Past President, Southeast Bus Nuts. Busin' for almost 20 years in a 1985 MC 96a3 with DD 8v92 and a 5 speed Allison c/r.

belfert

You reminded me that mineral spirits was also recommended for silicone and I tried that.  I can't remember if it was WD-40 or mineral spirits my mother used in the end as we tried both.
Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN