Seam Sealer? -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > General Technical Discussions > Paint and Body > Seam Sealer?

FS: Wranger BRIGHT License Plate LED! Just $3! Great valueBlack Friday and Cyber Monday Sales at JeepHut.comThe Jeep Forum Discount is ON!

Unread 03-13-2010, 06:38 PM   #1
Registered User
Join Date: Jul 2005
Location: Bakersfield
Posts: 3,587
Seam Sealer?

I am building a trailer. The sides are 1"X2" rect tubing. To that I welded 14 gauge steel. Of course I just tac, tac, taced it on. It is very secure and full welds are going to warp the snot out of it and are not needed. I want to prevent moisture from getting in between the 2 pieces of steel. I know on auto bodies they seal the joints with something.

What is that stuff called? I am guessing it's called seam sealer, but not sure. Do I put it on after I prime the metal or before?

Thank You.

2006 Solar Yellow Rubicon Unlimited
Jeep Club Member #1340
6 Speed, Hardtop
Mods done: Hurst tee handle, cheap hand throttle, Rokmen Merc front bumper, Warn 9.5 TI winch with 3/8" X 100 worth of Viking yellow rope, DPG OME Ultimate with JKS ACOS up front, Kilby Gas Tank Skid, Kilby Steering Box Skid, Jeep Medic Belly Up, Skidrow Engine Skid, Rockcrusher Diff Skid in the rear, Warn Diff cover in front, , AR Outlaw II's and MTR 12:50/15's, Homemade rear Bumper, Cheap Cobra CB, Puma OBA, Sirius Radio, Locker Defeat, Rockhard cage, Rockmen short corners, homemade tire swing/tailgate hinge affair, Airlift air bags on the rear- - - - - - and more to come!
Bigbob is offline   Reply With Quote Quick reply to this message
Unread 05-06-2010, 11:38 AM   #2
Registered User
2003 TJ Wrangler 
Join Date: May 2009
Location: Virginia
Posts: 48
You could just use a silicon sealant or epoxy that is sandable and paintable. Then of course apply before you paint.
Zybeon is offline   Reply With Quote Quick reply to this message
Unread 05-06-2010, 12:03 PM   #3
Registered User
1994 YJ Wrangler 
Join Date: Jul 2006
Location: Holland, MI
Posts: 434
It's called "seam sealer"

3M 08405 Flexiclear Body Seam Sealer

There are different varieties that that I'm sure can be purchased from shops that seller body repairs items; however, I have purchased from Auto Body Toolmart.
MichiganTech Mechanical Engineer Alumni
1994 Wrangler Sahara - Jeep Project
2003 Dodge Ram 1500 (new truck)
2007 Mazda CX-7 (the new commuter car)
2005 Mitsubishi Lancer (Rear Ended - TOTALED)
1998 VW Beetle (SOLD)
1988 Jeep Cherokee Limited - (SOLD)
mfalik is offline   Reply With Quote Quick reply to this message
Unread 05-06-2010, 12:32 PM   #4
Registered User
1985 CJ8 
Join Date: Dec 2009
Location: Alaska
Posts: 37
It is called seam sealer and NAPA sells it. Put it on bare metal but make sure it is where you want it because it is a PITA to get off.
aka Icicle on
AKCowboy is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.