What is seam sealer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

skokie · 01-11-2007, 12:57 AM

What is a good brand of seam sealer ?

Robert1970C20rstbukt · 01-11-2007, 01:01 AM

3M, don't have the specific type but someone will. I plan on using it on the Suburban ASAP once I get the small roof areas patched up.

skokie · 01-11-2007, 01:02 AM

Ok now for my dumb question

Where are the seams that need to be sealed on our truck.

**CMars45000** · 01-11-2007, 01:05 AM

Quote:

Originally Posted by skokie

Ok now for my dumb question

Where are the seams that need to be sealed on our truck.

Anywhere you have, well a seam, lol. I use it anywhere I am not welding a panel in solid but still need it to seal. GM used it alot to seal seams that were held together with spot welds

**CMars45000** · 01-11-2007, 01:02 AM

3M and Fusor are the only 2 I have used. Almost every paint compnay has one but they are all much the same.

Fusor has some great stuff and neat options like self-leveling, brushable, etc.

shifty · 01-11-2007, 01:03 AM

there is a good writeup around here that covers types of seam sealers. Search the forum for "shave drip rail" or "drip rail shave" and lots of them are covered there. i know this isn't a ton of help, i just remember the thread well and 2-3 diff't products were discussed in detail if memory serves ....

shifty · 01-11-2007, 01:04 AM

oh - and where should it be used? Where body seams meet and need sealing. at least two places i know are the drip rail and the seam across the middle of the floor (under the breake pedals, from door jamb to door jamb across the truck)

IvelDesigns · 01-11-2007, 01:22 AM

ok, so if you are welding a panel completely, say a floor, there's no need for it??

why wouldn't you always weld it completely?

shifty · 01-11-2007, 02:53 PM

Quote:

Originally Posted by IvelDesigns

ok, so if you are welding a panel completely, say a floor, there's no need for it??

why wouldn't you always weld it completely?

In the case of the cab, esspecially with the cab floor, you need can only stamp out sheets so big. You can't just pour out a cab. You also need to make it possible to tear it apart later in the case you need to replace something. I suppose using the type of joint along the floor and roof seam also keeps things adjustable for the work line. Spot welding also takes a fraction of the time. You're talking about reducing work time by 80% to assemble, and there's no use for the added strength.

JCA1972 · 01-11-2007, 05:29 PM

I used por-patch on my truck and it works great, cheap too $17.00 for a squeeze tube.

BLACK AND BLUE 67-72 · 01-11-2007, 08:58 PM

3M Automix seam sealers are the best I have found, it's what all of the professional body shops use around here. They don't shrink, crack, or peel over time like most of the others. There's 2 versions Heavy-Bodied #08308 and Self-leveling #08307

BLACK AND BLUE 67-72 · 01-11-2007, 09:06 PM

Here's what they look like...

*rage'nrat638* · 01-11-2007, 09:22 PM

heres a couple pictures where i used it

01-11-2007, 12:57 AM	#1
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,354	What is seam sealer What is a good brand of seam sealer ? __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

01-11-2007, 01:01 AM	#2
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	Re: What is seam sealer 3M, don't have the specific type but someone will. I plan on using it on the Suburban ASAP once I get the small roof areas patched up. __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck

01-11-2007, 01:02 AM	#3
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,354	Re: What is seam sealer Ok now for my dumb question Where are the seams that need to be sealed on our truck. __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

01-11-2007, 01:02 AM	#5
CMars45000 Registered User Join Date: Jul 2006 Location: Pittsburgh, PA Posts: 204	Re: What is seam sealer 3M and Fusor are the only 2 I have used. Almost every paint compnay has one but they are all much the same. Fusor has some great stuff and neat options like self-leveling, brushable, etc. __________________ Project Family Values Build Thread Vehicles/Projects: -1971 C10 SWB Fleetside! Gathering parts now, will begin frame-off resto soon... Pleasure in the job puts perfection in the work. -Aristotle

01-11-2007, 01:03 AM	#6
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: What is seam sealer there is a good writeup around here that covers types of seam sealers. Search the forum for "shave drip rail" or "drip rail shave" and lots of them are covered there. i know this isn't a ton of help, i just remember the thread well and 2-3 diff't products were discussed in detail if memory serves .... __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

01-11-2007, 01:04 AM	#7
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: What is seam sealer oh - and where should it be used? Where body seams meet and need sealing. at least two places i know are the drip rail and the seam across the middle of the floor (under the breake pedals, from door jamb to door jamb across the truck) __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

01-11-2007, 01:22 AM	#8
IvelDesigns Commander Taco Bello Join Date: Sep 2006 Location: Des Moines, Iowa Posts: 2,232	Re: What is seam sealer ok, so if you are welding a panel completely, say a floor, there's no need for it?? why wouldn't you always weld it completely? __________________ Bagged '50 3600 - Bumper punchin' road kill since 2009... Bagged '69 C10 Longbed - Bumper punchin' road kill since 2007...

01-11-2007, 05:29 PM	#10
JCA1972 Registered User Join Date: Dec 2006 Location: Baytown, Texas Posts: 194	Re: What is seam sealer I used por-patch on my truck and it works great, cheap too $17.00 for a squeeze tube. __________________ 1971 C-10 2004 Yukon: 1998 Honda Accord 2008 Honda Civic 2004 HD V-Rod http://67-72chevytrucks.com/vboard/s...d.php?t=226458

01-11-2007, 08:58 PM	#11
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Re: What is seam sealer 3M Automix seam sealers are the best I have found, it's what all of the professional body shops use around here. They don't shrink, crack, or peel over time like most of the others. There's 2 versions Heavy-Bodied #08308 and Self-leveling #08307 __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

01-11-2007, 09:06 PM	#12
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Re: What is seam sealer Here's what they look like... Attached Images __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

01-11-2007, 09:22 PM	#13
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: What is seam sealer heres a couple pictures where i used it Last edited by rage'nrat638; 07-12-2007 at 06:59 AM.

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