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3M™ Controlled -Flow Seam Sealer 200mL Cartridge
Article number186037740 SDS
Quantity (Pack Size: 1) Unit Price
(Min) $51.950

Total:  $51.950
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In Stock

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3M™ Controlled -Flow Seam Sealer 200mL Cartridge

3M™ Controlled-Flow Seam Sealer offers considerable strength, flexes under torsional stress from vibration and withstands extreme weather. The urethane formula contains no solvents and will not shrink or crack. These characteristics make it an ideal choice for automotive applications where motion and exposure to weather are a constant factor. Tough, Flexible and Self-Leveling, 3M™ Controlled-Flow Seam Sealer uses two-part urethane technology to provide a tough flexible material for the sealing of joints on primed or painted substrates such as steel or aluminum enclosures. 3M™ Control-Flow Seam Sealer works particularly well in areas where a flowable self-leveling type seam sealer is required. It is designed to flow one to two inches and then begins to cure, preventing further flow out of the material. This feature allows the user to control the application, preventing excessive waste while maintaining a uniform film thickness even on surfaces that are not level. Typical product uses include automotive “roof ditch” applications where a flow grade sealer is required and some “trunk rain gutter” seams where the use of a standard “self leveling” sealer is unacceptable due to flow characteristics. This urethane base auto body seam sealer has a paste consistency and is black/amber in color. This 3M seam sealer offers a 3-minute work time, cures in 2 hours and is ready for painting in about 40 minutes, depending on environmental conditions.



  • Two-part urethane technology offers tough, flexible performance
  • Good adhesion properties to primer or painted surfaces
  • Controlled application prevents excessive waste
  • Sealer flows 1 to 2 inches on non-level surfaces
  • Cured sealer will not shrink or crack


Typical Properties:

  • Work Time: 3 minutes Mix Nozzle
  • Dwell Time: 1 minute
  • Cure Time: 2 hours
  • Paint Time: 40 minutes
  • Tensile Strength: 2490 psi
  • Elongation: 400%
  • Color: Black
  • Surface Type: Painted Surface


NOTE: 3M Best Practice is that all sealers, unless designated specifically for use on bare metal be applied to properly prepared automotive paint or primer.



  • NOTE: Apply only to surfaces primed with a 2K urethane, 2K epoxy primer, or clean, sanded paint. Acid etch primers should never be in direct contact with seam sealer.
  • 1. Scuff primed surface with a Scotch-Brite™ General Purpose Hand Pad (Ultrafine), (PN 07448).
  • 2. Blow off dust with clean, compressed air and wipe with an appropriate VOC compliant surface cleaner for the removal of surface contaminates.


Warning This product can expose you Chemicals including Carbon Black which is known to the State of California to cause cancer and Chromium (hexavalent compounds) which is known to the State to cause birth defects or other reproductive harm.

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