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#1 |
Registered User
Join Date: Apr 2022
Location: Moorpark, CA
Posts: 756
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Drip Rail Seam Sealer?
I have 2 small cracks in seam sealer to roof panel and would like to fill those and use touch up paint I have over it. These are very small, about 1" long, areas where there is slight separation. I want to fill that so water des not enter.
Is this what to use or? https://www.amazon.com/3M-08531-Heav...000RVWQ2C?th=1 |
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#2 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,859
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Re: Drip Rail Seam Sealer?
I have never had much luck "patching" seam sealer. There is already dampness in the cracks that it would lock the moisture in. And promote corrosion. Best bet with seam sealer is clean out old, repair/treat the metal. Then reseal it and paint.
It's not what you want to heal, but patching is just not normally very successful.
__________________
Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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#3 |
Registered User
Join Date: Dec 2005
Location: Kalifornia
Posts: 338
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Re: Drip Rail Seam Sealer?
He's correct. My drip rail had hairline cracks, also. I took a small wire wheel on a drill and it really shredded the old dry sealer. I used a 3M caulk I purchased at an auto paint store. Caulk it on and smooth to the contour of the rail. One thing about the 3M sealer is it took forever to dry in cooler weather and of course it needs to cure before priming. There are different brands available. Talk to an auto paint supplier. Don't try to patch it if your gonna keep your truck. If it rusts underneath you'll be sorry. Good luck.
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#4 |
Senior Member
![]() Join Date: Mar 2015
Location: washington
Posts: 2,235
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Re: Drip Rail Seam Sealer?
You can also get the seam sealer that is a two part epoxy. I am unsure of the brand but the body shop, that painted my truck, used epoxy. They can't afford to wait days for it to dry. There is also self leveling type, that I have never used. Might be difficult to install with the contours of the roof?
Cheers. |
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#5 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,469
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Re: Drip Rail Seam Sealer?
I used SEM self leveling two part epoxy . I borrowed the caulking gun from a friend who owns a shop .
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. Last edited by 72c20customcamper; 02-05-2023 at 09:53 PM. |
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#6 |
Registered User
Join Date: Apr 2022
Location: Moorpark, CA
Posts: 756
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Re: Drip Rail Seam Sealer?
This crack is so minimal that wire brushing or grinding everything out, re-seal, then paint is way too big a hammer for this fix. I can fill it in with touch up paint. Its barely a crack in paint on about a 1" section. The crack is only as deep as the paint itself.
The clear 3M stuff I linked; anyone used it? |
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#7 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Drip Rail Seam Sealer?
Post a picture of the problem your dealing with , Using a heavy bodied sealer won't work on a hairline crack . It's always easier to get good answers to any question with a picture .
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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#8 |
Registered User
Join Date: Apr 2022
Location: Moorpark, CA
Posts: 756
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Re: Drip Rail Seam Sealer?
On further review, I used a toothbrush to get any dust out and can see the hairline crack is just the paint layer. Touch up paint easily filled it
Seam sealer would have been way overkill The truck was painted in 09. Its single stage paint and the touchup paint that was in glove box was perfect match. The paint code was also there so it could be reproduced also. Have the receipt for the paint from PO |
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#9 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,859
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Re: Drip Rail Seam Sealer?
Glad it worked for you
__________________
Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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