Seam sealer set up time... ever???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Luvlegs · 05-13-2011, 05:43 PM

I used the 3M seam sealer (not the mixed epoxy, just the caulk tube version) - let it set for 24 hours (says it's ready to paint in 40 minutes...). Touched up a few areas - sanded a bit here and there and did a little more skimming to make it nice. I then waited ANOTHER day and primed/painted - 7 days later... LOOKS fantastic - FEELS "mushy". The paint feels tacky - almost like you could leave a finger print in it. 10 days later, out of my shop now but under a covered pole barn, it feels firmer but like a fingernail would dent it. Just curious if anyone else has seen this or might know the issue.

I ADDED SOME PICS AT THE END

gcburdic · 05-13-2011, 09:52 PM

hey D....are you making this up??? You know you cannot post this without pictures

treveiger · 05-14-2011, 12:53 AM

interested also
Posted via Mobile Device

ace of shades · 05-14-2011, 01:06 AM

I has been a while since I have worked with seam sealer, but I do remember there are some products out there don't fully "cure" or get hard, hard. I don't remember off hand what the soft set seam sealer is used for but I have ran into the problem of grabbing the wrong tube and having to start over on some projects. If its not the soft set style, it might just be on too thick. I personally think If it was that think it wouldn't have stayed on the panel

danman987123 · 05-14-2011, 11:09 PM

no....we use seam sealer all the time at the shop...same 3m one also....it stays soft for a log time but dont worry....as long as u dont dig ur nails into like u said there wont be any marks....it just seems soft for a long while but u can still paint it and it dries like normal just stays a little soft but dont worry it will be fine

Luvlegs · 05-15-2011, 03:20 PM

Quote:

Originally Posted by danman987123

no....we use seam sealer all the time at the shop...same 3m one also....it stays soft for a log time but dont worry....as long as u dont dig ur nails into like u said there wont be any marks....it just seems soft for a long while but u can still paint it and it dries like normal just stays a little soft but dont worry it will be fine

AWESOME!!! I REALLY didn't want to redo it.

Luvlegs · 05-15-2011, 04:03 PM

Doesn't look so good in pics... I wonder if I should have put it on thicker so it didn't show the waves of the metal... What I took out was like 1/2" thick - anyone think I should redo it and go "deeper" with the sealer?

tjvending · 05-15-2011, 08:04 PM

Did you cover it im primer after you put in on or straight to painting?

MistaGavin · 05-15-2011, 09:43 PM

Are you supposed to prime then apply the sealer or prime after you put it in?
Posted via Mobile Device

Luvlegs · 05-16-2011, 06:18 PM

I put it on bare metal and THEN primed it.

**leddzepp** · 05-16-2011, 08:36 PM

What is the 3M part number of the seam sealer you used?

CaptRMW · 05-16-2011, 09:08 PM

It looks and sounds like 3 M "Fast and Firm" and the firm part is misleading. Not a bad thing as it needs to be a little flexible but you are right as it takes a long time to set. I used it over primer and had to take it out and grind to bare metal. Rubber glove and Zylene will smooth it pretty good but work fast as it will tack in short time...Roger

danman987123 · 05-16-2011, 10:20 PM

ya the 3m fast and firm is a good product it comes like in a blue and white tube.....he is right up there ^....just put a glove on....after it has been sitting for a while dip ur finger in some kind of solvent....even a bit of paint reducer works well just to smooth it out really nice....but let it sit for a bit....maybe 30min or so that way it is a little firmer and will smooth out nicer.....good luck

Luvlegs · 05-16-2011, 10:35 PM

I used the sealpro 08300. I edited my previous post - not sure why I got it out of order but I put it on the bare metal and THEN I primed.

Luvlegs · 05-21-2011, 08:21 AM

It's been a while since I first posted this so I'll TTT - still curios if it looks like I have enough in there or should I add more? I can't say I've ever seen an original so I don't have anything to judge by. Thanks all.

05-13-2011, 05:43 PM	#1
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Seam sealer set up time... ever???? I used the 3M seam sealer (not the mixed epoxy, just the caulk tube version) - let it set for 24 hours (says it's ready to paint in 40 minutes...). Touched up a few areas - sanded a bit here and there and did a little more skimming to make it nice. I then waited ANOTHER day and primed/painted - 7 days later... LOOKS fantastic - FEELS "mushy". The paint feels tacky - almost like you could leave a finger print in it. 10 days later, out of my shop now but under a covered pole barn, it feels firmer but like a fingernail would dent it. Just curious if anyone else has seen this or might know the issue. I ADDED SOME PICS AT THE END __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew! Last edited by Luvlegs; 05-15-2011 at 03:58 PM.

05-13-2011, 09:52 PM	#2
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: Seam sealer set up time... ever???? hey D....are you making this up??? You know you cannot post this without pictures __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

05-14-2011, 12:53 AM	#3
treveiger Senior Member Join Date: Jul 2010 Location: South Dakota Posts: 4,090	Re: Seam sealer set up time... ever???? interested also Posted via Mobile Device __________________ 1969 Chevy c20(Miss Hackjob)

05-14-2011, 01:06 AM	#4
ace of shades NEWBIE!! Join Date: Mar 2009 Location: Prineville OR Posts: 114	Re: Seam sealer set up time... ever???? I has been a while since I have worked with seam sealer, but I do remember there are some products out there don't fully "cure" or get hard, hard. I don't remember off hand what the soft set seam sealer is used for but I have ran into the problem of grabbing the wrong tube and having to start over on some projects. If its not the soft set style, it might just be on too thick. I personally think If it was that think it wouldn't have stayed on the panel __________________ Water is for the weak I don't like cocaine.. I just like the smell of it "Well there might be a dime up a goats ass too, but I ain't looken" - Grandpa VolksRods

05-14-2011, 11:09 PM	#5
danman987123 Registered User Join Date: Apr 2008 Location: texas Posts: 127	Re: Seam sealer set up time... ever???? no....we use seam sealer all the time at the shop...same 3m one also....it stays soft for a log time but dont worry....as long as u dont dig ur nails into like u said there wont be any marks....it just seems soft for a long while but u can still paint it and it dries like normal just stays a little soft but dont worry it will be fine

05-15-2011, 04:03 PM	#7
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Seam sealer set up time... ever???? Doesn't look so good in pics... I wonder if I should have put it on thicker so it didn't show the waves of the metal... What I took out was like 1/2" thick - anyone think I should redo it and go "deeper" with the sealer? Attached Images __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

05-15-2011, 08:04 PM	#8
tjvending Registered User Join Date: Oct 2007 Location: rockville, md Posts: 257	Re: Seam sealer set up time... ever???? Did you cover it im primer after you put in on or straight to painting?

05-15-2011, 09:43 PM	#9
MistaGavin Registered User Join Date: Nov 2010 Location: Fairbanks Alaska Posts: 126	Re: Seam sealer set up time... ever???? Are you supposed to prime then apply the sealer or prime after you put it in? Posted via Mobile Device __________________ You're not old, it IS loud! 1970 CST-10 BB 400

05-16-2011, 06:18 PM	#10
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Seam sealer set up time... ever???? I put it on bare metal and THEN primed it. __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew! Last edited by Luvlegs; 05-16-2011 at 10:39 PM. Reason: out of order

05-16-2011, 08:36 PM	#11
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 19,979	Re: Seam sealer set up time... ever???? What is the 3M part number of the seam sealer you used? __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man

05-16-2011, 09:08 PM	#12
CaptRMW Custom Sport W/T Join Date: Nov 2010 Location: Tarpon Springs,Fl & Annapolis,Md. ....................Quaint drinking villages with a fishing problem Posts: 898	Re: Seam sealer set up time... ever???? It looks and sounds like 3 M "Fast and Firm" and the firm part is misleading. Not a bad thing as it needs to be a little flexible but you are right as it takes a long time to set. I used it over primer and had to take it out and grind to bare metal. Rubber glove and Zylene will smooth it pretty good but work fast as it will tack in short time...Roger

05-16-2011, 10:20 PM	#13
danman987123 Registered User Join Date: Apr 2008 Location: texas Posts: 127	Re: Seam sealer set up time... ever???? ya the 3m fast and firm is a good product it comes like in a blue and white tube.....he is right up there ^....just put a glove on....after it has been sitting for a while dip ur finger in some kind of solvent....even a bit of paint reducer works well just to smooth it out really nice....but let it sit for a bit....maybe 30min or so that way it is a little firmer and will smooth out nicer.....good luck

05-16-2011, 10:35 PM	#14
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Seam sealer set up time... ever???? I used the sealpro 08300. I edited my previous post - not sure why I got it out of order but I put it on the bare metal and THEN I primed. __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew! Last edited by Luvlegs; 05-16-2011 at 10:37 PM.

05-21-2011, 08:21 AM	#15
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Seam sealer set up time... ever???? It's been a while since I first posted this so I'll TTT - still curios if it looks like I have enough in there or should I add more? I can't say I've ever seen an original so I don't have anything to judge by. Thanks all. __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!



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